Add BigDecimal support for SpEl numeric operations

Prior to this change, SpEL supported numeric operations for int, float,
ect. `new java.math.BigDecimal('0.1') > 0` evaluated to false
(BigDecimal is truncated to int)

This commit introduces support for BigDecimal operations for all
mathematical operators. `new java.math.BigDecimal('0.1') > 0` now
evaluates to true (the comparison is made with BigDecimals)

Issue: SPR-9164

spring-expression/src/main/java/org/springframework/expression/spel/ast/OpDec.java

@@ -16,6 +16,8 @@
 
 package org.springframework.expression.spel.ast;
 
+import java.math.BigDecimal;
+
 import org.springframework.expression.EvaluationException;
 import org.springframework.expression.Operation;
 import org.springframework.expression.TypedValue;
@@ -29,6 +31,7 @@ import org.springframework.util.Assert;
  * appropriate exceptions if the operand in question does not support decrement.
  *
  * @author Andy Clement
+ * @author Giovanni Dall'Oglio Risso
  * @since 3.2
  */
 public class OpDec extends Operator {
@@ -58,7 +61,11 @@ public class OpDec extends Operator {
 
 		if (operandValue instanceof Number) {
 			Number op1 = (Number) operandValue;
-			if (op1 instanceof Double) {
+			if (op1 instanceof BigDecimal) {
+				newValue = new TypedValue(((BigDecimal) op1).subtract(BigDecimal.ONE),
+						operandTypedValue.getTypeDescriptor());
+			}
+			else if (op1 instanceof Double) {
 				newValue = new TypedValue(op1.doubleValue() - 1.0d,
 						operandTypedValue.getTypeDescriptor());
 			}
@@ -79,7 +86,7 @@ public class OpDec extends Operator {
 						operandTypedValue.getTypeDescriptor());
 			}
 		}
-		if (newValue==null) {
+		if (newValue == null) {
 			try {
 				newValue = state.operate(Operation.SUBTRACT, returnValue.getValue(), 1);
 			}

spring-expression/src/main/java/org/springframework/expression/spel/ast/OpDivide.java

@@ -16,20 +16,26 @@
 
 package org.springframework.expression.spel.ast;
 
+import java.math.BigDecimal;
+import java.math.RoundingMode;
+
 import org.springframework.expression.EvaluationException;
 import org.springframework.expression.Operation;
 import org.springframework.expression.TypedValue;
 import org.springframework.expression.spel.ExpressionState;
+import org.springframework.util.NumberUtils;
 
 /**
  * Implements division operator.
  *
  * @author Andy Clement
  * @author Juergen Hoeller
+ * @author Giovanni Dall'Oglio Risso
  * @since 3.0
  */
 public class OpDivide extends Operator {
 
+
 	public OpDivide(int pos, SpelNodeImpl... operands) {
 		super("/", pos, operands);
 	}
@@ -37,26 +43,35 @@ public class OpDivide extends Operator {
 
 	@Override
 	public TypedValue getValueInternal(ExpressionState state) throws EvaluationException {
-		Object operandOne = getLeftOperand().getValueInternal(state).getValue();
-		Object operandTwo = getRightOperand().getValueInternal(state).getValue();
-		if (operandOne instanceof Number && operandTwo instanceof Number) {
-			Number op1 = (Number) operandOne;
-			Number op2 = (Number) operandTwo;
-			if (op1 instanceof Double || op2 instanceof Double) {
-				return new TypedValue(op1.doubleValue() / op2.doubleValue());
+		Object leftOperand = getLeftOperand().getValueInternal(state).getValue();
+		Object rightOperand = getRightOperand().getValueInternal(state).getValue();
+
+		if (leftOperand instanceof Number && rightOperand instanceof Number) {
+			Number leftNumber = (Number) leftOperand;
+			Number rightNumber = (Number) rightOperand;
+
+			if (leftNumber instanceof BigDecimal || rightNumber instanceof BigDecimal) {
+				BigDecimal leftBigDecimal = NumberUtils.convertNumberToTargetClass(leftNumber, BigDecimal.class);
+				BigDecimal rightBigDecimal = NumberUtils.convertNumberToTargetClass(rightNumber, BigDecimal.class);
+				int scale = Math.max(leftBigDecimal.scale(), rightBigDecimal.scale());
+				return new TypedValue(leftBigDecimal.divide(rightBigDecimal, scale, RoundingMode.HALF_EVEN));
 			}
-			else if (op1 instanceof Float || op2 instanceof Float) {
-				return new TypedValue(op1.floatValue() / op2.floatValue());
+
+			if (leftNumber instanceof Double || rightNumber instanceof Double) {
+				return new TypedValue(leftNumber.doubleValue() / rightNumber.doubleValue());
 			}
-			else if (op1 instanceof Long || op2 instanceof Long) {
-				return new TypedValue(op1.longValue() / op2.longValue());
+			if (leftNumber instanceof Float || rightNumber instanceof Float) {
+				return new TypedValue(leftNumber.floatValue() / rightNumber.floatValue());
 			}
-			else {
-				// TODO what about non-int result of the division?
-				return new TypedValue(op1.intValue() / op2.intValue());
+			if (leftNumber instanceof Long || rightNumber instanceof Long) {
+				return new TypedValue(leftNumber.longValue() / rightNumber.longValue());
 			}
+
+			// TODO what about non-int result of the division?
+			return new TypedValue(leftNumber.intValue() / rightNumber.intValue());
 		}
-		return state.operate(Operation.DIVIDE, operandOne, operandTwo);
+
+		return state.operate(Operation.DIVIDE, leftOperand, rightOperand);
 	}
 
 }

spring-expression/src/main/java/org/springframework/expression/spel/ast/OpGE.java

@@ -15,18 +15,23 @@
  */
 package org.springframework.expression.spel.ast;
 
+import java.math.BigDecimal;
+
 import org.springframework.expression.EvaluationException;
 import org.springframework.expression.spel.ExpressionState;
 import org.springframework.expression.spel.support.BooleanTypedValue;
+import org.springframework.util.NumberUtils;
 
 /**
  * Implements greater-than-or-equal operator.
  *
  * @author Andy Clement
+ * @author Giovanni Dall'Oglio Risso
  * @since 3.0
  */
 public class OpGE extends Operator {
 
+
 	public OpGE(int pos, SpelNodeImpl... operands) {
 		super(">=", pos, operands);
 	}
@@ -39,18 +44,25 @@ public class OpGE extends Operator {
 		if (left instanceof Number && right instanceof Number) {
 			Number leftNumber = (Number) left;
 			Number rightNumber = (Number) right;
+
+			if (leftNumber instanceof BigDecimal || rightNumber instanceof BigDecimal) {
+				BigDecimal leftBigDecimal = NumberUtils.convertNumberToTargetClass(leftNumber, BigDecimal.class);
+				BigDecimal rightBigDecimal = NumberUtils.convertNumberToTargetClass(rightNumber, BigDecimal.class);
+				return BooleanTypedValue.forValue(leftBigDecimal.compareTo(rightBigDecimal) >= 0);
+			}
+
 			if (leftNumber instanceof Double || rightNumber instanceof Double) {
 				return BooleanTypedValue.forValue(leftNumber.doubleValue() >= rightNumber.doubleValue());
 			}
-			else if (leftNumber instanceof Float || rightNumber instanceof Float) {
+
+			if (leftNumber instanceof Float || rightNumber instanceof Float) {
 				return BooleanTypedValue.forValue(leftNumber.floatValue() >= rightNumber.floatValue());
 			}
-			else if (leftNumber instanceof Long || rightNumber instanceof Long) {
+
+			if (leftNumber instanceof Long || rightNumber instanceof Long) {
 				return BooleanTypedValue.forValue(leftNumber.longValue() >= rightNumber.longValue());
 			}
-			else {
-				return BooleanTypedValue.forValue(leftNumber.intValue() >= rightNumber.intValue());
-			}
+			return BooleanTypedValue.forValue(leftNumber.intValue() >= rightNumber.intValue());
 		}
 		return BooleanTypedValue.forValue(state.getTypeComparator().compare(left, right) >= 0);
 	}

spring-expression/src/main/java/org/springframework/expression/spel/ast/OpGT.java

@@ -16,14 +16,18 @@
 
 package org.springframework.expression.spel.ast;
 
+import java.math.BigDecimal;
+
 import org.springframework.expression.EvaluationException;
 import org.springframework.expression.spel.ExpressionState;
 import org.springframework.expression.spel.support.BooleanTypedValue;
+import org.springframework.util.NumberUtils;
 
 /**
  * Implements greater-than operator.
  *
  * @author Andy Clement
+ * @author Giovanni Dall'Oglio Risso
  * @since 3.0
  */
 public class OpGT extends Operator {
@@ -38,21 +42,30 @@ public class OpGT extends Operator {
 	public BooleanTypedValue getValueInternal(ExpressionState state) throws EvaluationException {
 		Object left = getLeftOperand().getValueInternal(state).getValue();
 		Object right = getRightOperand().getValueInternal(state).getValue();
+
 		if (left instanceof Number && right instanceof Number) {
 			Number leftNumber = (Number) left;
 			Number rightNumber = (Number) right;
+
+			if (leftNumber instanceof BigDecimal || rightNumber instanceof BigDecimal) {
+				BigDecimal leftBigDecimal = NumberUtils.convertNumberToTargetClass(leftNumber, BigDecimal.class);
+				BigDecimal rightBigDecimal = NumberUtils.convertNumberToTargetClass(rightNumber, BigDecimal.class);
+				return BooleanTypedValue.forValue(leftBigDecimal.compareTo(rightBigDecimal) > 0);
+			}
+
 			if (leftNumber instanceof Double || rightNumber instanceof Double) {
 				return BooleanTypedValue.forValue(leftNumber.doubleValue() > rightNumber.doubleValue());
 			}
-			else if (leftNumber instanceof Float || rightNumber instanceof Float) {
+
+			if (leftNumber instanceof Float || rightNumber instanceof Float) {
 				return BooleanTypedValue.forValue(leftNumber.floatValue() > rightNumber.floatValue());
 			}
-			else if (leftNumber instanceof Long || rightNumber instanceof Long) {
+
+			if (leftNumber instanceof Long || rightNumber instanceof Long) {
 				return BooleanTypedValue.forValue(leftNumber.longValue() > rightNumber.longValue());
 			}
-			else {
-				return BooleanTypedValue.forValue(leftNumber.intValue() > rightNumber.intValue());
-			}
+
+			return BooleanTypedValue.forValue(leftNumber.intValue() > rightNumber.intValue());
 		}
 		return BooleanTypedValue.forValue(state.getTypeComparator().compare(left, right) > 0);
 	}

spring-expression/src/main/java/org/springframework/expression/spel/ast/OpInc.java

@@ -16,6 +16,8 @@
 
 package org.springframework.expression.spel.ast;
 
+import java.math.BigDecimal;
+
 import org.springframework.expression.EvaluationException;
 import org.springframework.expression.Operation;
 import org.springframework.expression.TypedValue;
@@ -29,6 +31,7 @@ import org.springframework.util.Assert;
  * appropriate exceptions if the operand in question does not support increment.
  *
  * @author Andy Clement
+ * @author Giovanni Dall'Oglio Risso
  * @since 3.2
  */
 public class OpInc extends Operator {
@@ -47,34 +50,38 @@ public class OpInc extends Operator {
 	public TypedValue getValueInternal(ExpressionState state) throws EvaluationException {
 		SpelNodeImpl operand = getLeftOperand();
 
-		ValueRef lvalue = operand.getValueRef(state);
+		ValueRef valueRef = operand.getValueRef(state);
 
-		final TypedValue operandTypedValue = lvalue.getValue();
-		final Object operandValue = operandTypedValue.getValue();
-		TypedValue returnValue = operandTypedValue;
+		final TypedValue typedValue = valueRef.getValue();
+		final Object value = typedValue.getValue();
+		TypedValue returnValue = typedValue;
 		TypedValue newValue = null;
 
-		if (operandValue instanceof Number) {
-			Number op1 = (Number) operandValue;
-			if (op1 instanceof Double) {
+		if (value instanceof Number) {
+			Number op1 = (Number) value;
+			if (op1 instanceof BigDecimal) {
+				newValue = new TypedValue(((BigDecimal) op1).add(BigDecimal.ONE),
+						typedValue.getTypeDescriptor());
+			}
+			else if (op1 instanceof Double) {
 				newValue = new TypedValue(op1.doubleValue() + 1.0d,
-						operandTypedValue.getTypeDescriptor());
+						typedValue.getTypeDescriptor());
 			}
 			else if (op1 instanceof Float) {
 				newValue = new TypedValue(op1.floatValue() + 1.0f,
-						operandTypedValue.getTypeDescriptor());
+						typedValue.getTypeDescriptor());
 			}
 			else if (op1 instanceof Long) {
 				newValue = new TypedValue(op1.longValue() + 1L,
-						operandTypedValue.getTypeDescriptor());
+						typedValue.getTypeDescriptor());
 			}
 			else if (op1 instanceof Short) {
 				newValue = new TypedValue(op1.shortValue() + (short) 1,
-						operandTypedValue.getTypeDescriptor());
+						typedValue.getTypeDescriptor());
 			}
 			else {
 				newValue = new TypedValue(op1.intValue() + 1,
-						operandTypedValue.getTypeDescriptor());
+						typedValue.getTypeDescriptor());
 			}
 		}
 		if (newValue == null) {
@@ -93,7 +100,7 @@ public class OpInc extends Operator {
 
 		// set the name value
 		try {
-			lvalue.setValue(newValue.getValue());
+			valueRef.setValue(newValue.getValue());
 		}
 		catch (SpelEvaluationException see) {
 			// if unable to set the value the operand is not writable (e.g. 1++ )

spring-expression/src/main/java/org/springframework/expression/spel/ast/OpLE.java

@@ -16,18 +16,23 @@
 
 package org.springframework.expression.spel.ast;
 
+import java.math.BigDecimal;
+
 import org.springframework.expression.EvaluationException;
 import org.springframework.expression.spel.ExpressionState;
 import org.springframework.expression.spel.support.BooleanTypedValue;
+import org.springframework.util.NumberUtils;
 
 /**
  * Implements the less-than-or-equal operator.
  *
  * @author Andy Clement
+ * @author Giovanni Dall'Oglio Risso
  * @since 3.0
  */
 public class OpLE extends Operator {
 
+
 	public OpLE(int pos, SpelNodeImpl... operands) {
 		super("<=", pos, operands);
 	}
@@ -41,19 +46,28 @@ public class OpLE extends Operator {
 		if (left instanceof Number && right instanceof Number) {
 			Number leftNumber = (Number) left;
 			Number rightNumber = (Number) right;
+
+			if (leftNumber instanceof BigDecimal || rightNumber instanceof BigDecimal) {
+				BigDecimal leftBigDecimal = NumberUtils.convertNumberToTargetClass(leftNumber, BigDecimal.class);
+				BigDecimal rightBigDecimal = NumberUtils.convertNumberToTargetClass(rightNumber, BigDecimal.class);
+				return BooleanTypedValue.forValue(leftBigDecimal.compareTo(rightBigDecimal) <= 0);
+			}
+
 			if (leftNumber instanceof Double || rightNumber instanceof Double) {
 				return BooleanTypedValue.forValue(leftNumber.doubleValue() <= rightNumber.doubleValue());
 			}
-			else if (leftNumber instanceof Float || rightNumber instanceof Float) {
+
+			if (leftNumber instanceof Float || rightNumber instanceof Float) {
 				return BooleanTypedValue.forValue(leftNumber.floatValue() <= rightNumber.floatValue());
 			}
-			else if (leftNumber instanceof Long || rightNumber instanceof Long) {
+
+			if (leftNumber instanceof Long || rightNumber instanceof Long) {
 				return BooleanTypedValue.forValue(leftNumber.longValue() <= rightNumber.longValue());
 			}
-			else {
-				return BooleanTypedValue.forValue(leftNumber.intValue() <= rightNumber.intValue());
-			}
+
+			return BooleanTypedValue.forValue(leftNumber.intValue() <= rightNumber.intValue());
 		}
+
 		return BooleanTypedValue.forValue(state.getTypeComparator().compare(left, right) <= 0);
 	}
 

spring-expression/src/main/java/org/springframework/expression/spel/ast/OpLT.java

@@ -16,14 +16,18 @@
 
 package org.springframework.expression.spel.ast;
 
+import java.math.BigDecimal;
+
 import org.springframework.expression.EvaluationException;
 import org.springframework.expression.spel.ExpressionState;
 import org.springframework.expression.spel.support.BooleanTypedValue;
+import org.springframework.util.NumberUtils;
 
 /**
  * Implements the less-than operator.
  *
  * @author Andy Clement
+ * @author Giovanni Dall'Oglio Risso
  * @since 3.0
  */
 public class OpLT extends Operator {
@@ -43,18 +47,26 @@ public class OpLT extends Operator {
 		if (left instanceof Number && right instanceof Number) {
 			Number leftNumber = (Number) left;
 			Number rightNumber = (Number) right;
+
+			if (leftNumber instanceof BigDecimal || rightNumber instanceof BigDecimal) {
+				BigDecimal leftBigDecimal = NumberUtils.convertNumberToTargetClass(leftNumber, BigDecimal.class);
+				BigDecimal rightBigDecimal = NumberUtils.convertNumberToTargetClass(rightNumber, BigDecimal.class);
+				return BooleanTypedValue.forValue(leftBigDecimal.compareTo(rightBigDecimal) < 0);
+			}
+
 			if (leftNumber instanceof Double || rightNumber instanceof Double) {
 				return BooleanTypedValue.forValue(leftNumber.doubleValue() < rightNumber.doubleValue());
 			}
-			else if (leftNumber instanceof Float || rightNumber instanceof Float) {
+
+			if (leftNumber instanceof Float || rightNumber instanceof Float) {
 				return BooleanTypedValue.forValue(leftNumber.floatValue() < rightNumber.floatValue());
 			}
-			else if (leftNumber instanceof Long || rightNumber instanceof Long) {
+
+			if (leftNumber instanceof Long || rightNumber instanceof Long) {
 				return BooleanTypedValue.forValue(leftNumber.longValue() < rightNumber.longValue());
 			}
-			else {
-				return BooleanTypedValue.forValue(leftNumber.intValue() < rightNumber.intValue());
-			}
+
+			return BooleanTypedValue.forValue(leftNumber.intValue() < rightNumber.intValue());
 		}
 		return BooleanTypedValue.forValue(state.getTypeComparator().compare(left, right) < 0);
 	}

spring-expression/src/main/java/org/springframework/expression/spel/ast/OpMinus.java

@@ -16,33 +16,40 @@
 
 package org.springframework.expression.spel.ast;
 
+import java.math.BigDecimal;
+
 import org.springframework.expression.EvaluationException;
 import org.springframework.expression.Operation;
 import org.springframework.expression.TypedValue;
 import org.springframework.expression.spel.ExpressionState;
+import org.springframework.util.NumberUtils;
 
 /**
  * The minus operator supports:
  * <ul>
+ * <li>subtraction of {@code BigDecimal}
  * <li>subtraction of doubles (floats are represented as doubles)
  * <li>subtraction of longs
  * <li>subtraction of integers
  * <li>subtraction of an int from a string of one character (effectively decreasing that
  * character), so 'd'-3='a'
  * </ul>
- * It can be used as a unary operator for numbers (double/long/int). The standard
- * promotions are performed when the operand types vary (double-int=double). For other
- * options it defers to the registered overloader.
+ * It can be used as a unary operator for numbers ({@code BigDecimal}/double/long/int).
+ * The standard promotions are performed when the operand types vary (double-int=double).
+ * For other options it defers to the registered overloader.
  *
  * @author Andy Clement
+ * @author Giovanni Dall'Oglio Risso
  * @since 3.0
  */
 public class OpMinus extends Operator {
 
+
 	public OpMinus(int pos, SpelNodeImpl... operands) {
 		super("-", pos, operands);
 	}
 
+
 	@Override
 	public TypedValue getValueInternal(ExpressionState state) throws EvaluationException {
 
@@ -53,6 +60,12 @@ public class OpMinus extends Operator {
 			Object operand = leftOp.getValueInternal(state).getValue();
 			if (operand instanceof Number) {
 				Number n = (Number) operand;
+
+				if (operand instanceof BigDecimal) {
+					BigDecimal bdn = (BigDecimal) n;
+					return new TypedValue(bdn.negate());
+				}
+
 				if (operand instanceof Double) {
 					return new TypedValue(0 - n.doubleValue());
 				}
@@ -64,6 +77,7 @@ public class OpMinus extends Operator {
 				if (operand instanceof Long) {
 					return new TypedValue(0 - n.longValue());
 				}
+
 				return new TypedValue(0 - n.intValue());
 			}
 
@@ -74,21 +88,28 @@ public class OpMinus extends Operator {
 		Object right = rightOp.getValueInternal(state).getValue();
 
 		if (left instanceof Number && right instanceof Number) {
-			Number op1 = (Number) left;
-			Number op2 = (Number) right;
-			if (op1 instanceof Double || op2 instanceof Double) {
-				return new TypedValue(op1.doubleValue() - op2.doubleValue());
+			Number leftNumber = (Number) left;
+			Number rightNumber = (Number) right;
+
+			if (leftNumber instanceof BigDecimal || rightNumber instanceof BigDecimal) {
+				BigDecimal leftBigDecimal = NumberUtils.convertNumberToTargetClass(leftNumber, BigDecimal.class);
+				BigDecimal rightBigDecimal = NumberUtils.convertNumberToTargetClass(rightNumber, BigDecimal.class);
+				return new TypedValue(leftBigDecimal.subtract(rightBigDecimal));
+			}
+
+			if (leftNumber instanceof Double || rightNumber instanceof Double) {
+				return new TypedValue(leftNumber.doubleValue() - rightNumber.doubleValue());
 			}
 
-			if (op1 instanceof Float || op2 instanceof Float) {
-				return new TypedValue(op1.floatValue() - op2.floatValue());
+			if (leftNumber instanceof Float || rightNumber instanceof Float) {
+				return new TypedValue(leftNumber.floatValue() - rightNumber.floatValue());
 			}
 
-			if (op1 instanceof Long || op2 instanceof Long) {
-				return new TypedValue(op1.longValue() - op2.longValue());
+			if (leftNumber instanceof Long || rightNumber instanceof Long) {
+				return new TypedValue(leftNumber.longValue() - rightNumber.longValue());
 			}
 
-			return new TypedValue(op1.intValue() - op2.intValue());
+			return new TypedValue(leftNumber.intValue() - rightNumber.intValue());
 		}
 		else if (left instanceof String && right instanceof Integer
 				&& ((String) left).length() == 1) {

spring-expression/src/main/java/org/springframework/expression/spel/ast/OpModulus.java

@@ -16,19 +16,24 @@
 
 package org.springframework.expression.spel.ast;
 
+import java.math.BigDecimal;
+
 import org.springframework.expression.EvaluationException;
 import org.springframework.expression.Operation;
 import org.springframework.expression.TypedValue;
 import org.springframework.expression.spel.ExpressionState;
+import org.springframework.util.NumberUtils;
 
 /**
  * Implements the modulus operator.
  *
  * @author Andy Clement
+ * @author Giovanni Dall'Oglio Risso
  * @since 3.0
  */
 public class OpModulus extends Operator {
 
+
 	public OpModulus(int pos, SpelNodeImpl... operands) {
 		super("%", pos, operands);
 	}
@@ -36,25 +41,34 @@ public class OpModulus extends Operator {
 
 	@Override
 	public TypedValue getValueInternal(ExpressionState state) throws EvaluationException {
-		Object operandOne = getLeftOperand().getValueInternal(state).getValue();
-		Object operandTwo = getRightOperand().getValueInternal(state).getValue();
-		if (operandOne instanceof Number && operandTwo instanceof Number) {
-			Number op1 = (Number) operandOne;
-			Number op2 = (Number) operandTwo;
-			if (op1 instanceof Double || op2 instanceof Double) {
-				return new TypedValue(op1.doubleValue() % op2.doubleValue());
+		Object leftOperand = getLeftOperand().getValueInternal(state).getValue();
+		Object rightOperand = getRightOperand().getValueInternal(state).getValue();
+		if (leftOperand instanceof Number && rightOperand instanceof Number) {
+			Number leftNumber = (Number) leftOperand;
+			Number rightNumber = (Number) rightOperand;
+
+			if (leftNumber instanceof BigDecimal || rightNumber instanceof BigDecimal) {
+				BigDecimal leftBigDecimal = NumberUtils.convertNumberToTargetClass(leftNumber, BigDecimal.class);
+				BigDecimal rightBigDecimal = NumberUtils.convertNumberToTargetClass(rightNumber, BigDecimal.class);
+				return new TypedValue(leftBigDecimal.remainder(rightBigDecimal));
 			}
-			else if (op1 instanceof Float || op2 instanceof Float) {
-				return new TypedValue(op1.floatValue() % op2.floatValue());
+
+			if (leftNumber instanceof Double || rightNumber instanceof Double) {
+				return new TypedValue(leftNumber.doubleValue() % rightNumber.doubleValue());
 			}
-			else if (op1 instanceof Long || op2 instanceof Long) {
-				return new TypedValue(op1.longValue() % op2.longValue());
+
+			if (leftNumber instanceof Float || rightNumber instanceof Float) {
+				return new TypedValue(leftNumber.floatValue() % rightNumber.floatValue());
 			}
-			else {
-				return new TypedValue(op1.intValue() % op2.intValue());
+
+			if (leftNumber instanceof Long || rightNumber instanceof Long) {
+				return new TypedValue(leftNumber.longValue() % rightNumber.longValue());
 			}
+
+			return new TypedValue(leftNumber.intValue() % rightNumber.intValue());
 		}
-		return state.operate(Operation.MODULUS, operandOne, operandTwo);
+
+		return state.operate(Operation.MODULUS, leftOperand, rightOperand);
 	}
 
 }

spring-expression/src/main/java/org/springframework/expression/spel/ast/OpMultiply.java

@@ -16,20 +16,24 @@
 
 package org.springframework.expression.spel.ast;
 
+import java.math.BigDecimal;
+
 import org.springframework.expression.EvaluationException;
 import org.springframework.expression.Operation;
 import org.springframework.expression.TypedValue;
 import org.springframework.expression.spel.ExpressionState;
+import org.springframework.util.NumberUtils;
 
 /**
  * Implements the {@code multiply} operator.
  *
  * <p>Conversions and promotions are handled as defined in
  * <a href="http://java.sun.com/docs/books/jls/third_edition/html/conversions.html">Section
- * 5.6.2 of the Java Language Specification</a>:
+ * 5.6.2 of the Java Language Specification</a>, with the addiction of {@code BigDecimal} management:
  *
  * <p>If any of the operands is of a reference type, unboxing conversion (Section 5.1.8)
  * is performed. Then:<br>
+ * If either operand is of type {@code BigDecimal}, the other is converted to {@code BigDecimal}.<br>
  * If either operand is of type double, the other is converted to double.<br>
  * Otherwise, if either operand is of type float, the other is converted to float.<br>
  * Otherwise, if either operand is of type long, the other is converted to long.<br>
@@ -37,10 +41,12 @@ import org.springframework.expression.spel.ExpressionState;
  *
  * @author Andy Clement
  * @author Sam Brannen
+ * @author Giovanni Dall'Oglio Risso
  * @since 3.0
  */
 public class OpMultiply extends Operator {
 
+
 	public OpMultiply(int pos, SpelNodeImpl... operands) {
 		super("*", pos, operands);
 	}
@@ -52,6 +58,7 @@ public class OpMultiply extends Operator {
 	 * for types not supported here.
 	 * <p>Supported operand types:
 	 * <ul>
+	 * <li>{@code BigDecimal}
 	 * <li>doubles
 	 * <li>longs
 	 * <li>integers
@@ -61,15 +68,20 @@ public class OpMultiply extends Operator {
 	@Override
 	public TypedValue getValueInternal(ExpressionState state) throws EvaluationException {
 
-		Object operandOne = getLeftOperand().getValueInternal(state).getValue();
-		Object operandTwo = getRightOperand().getValueInternal(state).getValue();
+		Object leftOperand = getLeftOperand().getValueInternal(state).getValue();
+		Object rightOperand = getRightOperand().getValueInternal(state).getValue();
+
+		if (leftOperand instanceof Number && rightOperand instanceof Number) {
+			Number leftNumber = (Number) leftOperand;
+			Number rightNumber = (Number) rightOperand;
+			if (leftNumber instanceof BigDecimal || rightNumber instanceof BigDecimal) {
+				BigDecimal leftBigDecimal = NumberUtils.convertNumberToTargetClass(leftNumber, BigDecimal.class);
+				BigDecimal rightBigDecimal = NumberUtils.convertNumberToTargetClass(rightNumber, BigDecimal.class);
+				return new TypedValue(leftBigDecimal.multiply(rightBigDecimal));
+			}
 
-		if (operandOne instanceof Number && operandTwo instanceof Number) {
-			Number leftNumber = (Number) operandOne;
-			Number rightNumber = (Number) operandTwo;
 			if (leftNumber instanceof Double || rightNumber instanceof Double) {
-				return new TypedValue(leftNumber.doubleValue()
-						* rightNumber.doubleValue());
+				return new TypedValue(leftNumber.doubleValue() * rightNumber.doubleValue());
 			}
 
 			if (leftNumber instanceof Float || rightNumber instanceof Float) {
@@ -82,16 +94,16 @@ public class OpMultiply extends Operator {
 
 			return new TypedValue(leftNumber.intValue() * rightNumber.intValue());
 		}
-		else if (operandOne instanceof String && operandTwo instanceof Integer) {
-			int repeats = (Integer) operandTwo;
+		else if (leftOperand instanceof String && rightOperand instanceof Integer) {
+			int repeats = (Integer) rightOperand;
 			StringBuilder result = new StringBuilder();
 			for (int i = 0; i < repeats; i++) {
-				result.append(operandOne);
+				result.append(leftOperand);
 			}
 			return new TypedValue(result.toString());
 		}
 
-		return state.operate(Operation.MULTIPLY, operandOne, operandTwo);
+		return state.operate(Operation.MULTIPLY, leftOperand, rightOperand);
 	}
 
 }

spring-expression/src/main/java/org/springframework/expression/spel/ast/OpPlus.java

@@ -16,6 +16,8 @@
 
 package org.springframework.expression.spel.ast;
 
+import java.math.BigDecimal;
+
 import org.springframework.core.convert.TypeDescriptor;
 import org.springframework.expression.EvaluationException;
 import org.springframework.expression.Operation;
@@ -23,25 +25,29 @@ import org.springframework.expression.TypeConverter;
 import org.springframework.expression.TypedValue;
 import org.springframework.expression.spel.ExpressionState;
 import org.springframework.util.Assert;
+import org.springframework.util.NumberUtils;
 
 /**
  * The plus operator will:
  * <ul>
+ * <li>add {@code BigDecimal}
  * <li>add doubles (floats are represented as doubles)
  * <li>add longs
  * <li>add integers
  * <li>concatenate strings
  * </ul>
- * It can be used as a unary operator for numbers (double/long/int). The standard
- * promotions are performed when the operand types vary (double+int=double). For other
- * options it defers to the registered overloader.
+ * It can be used as a unary operator for numbers ({@code BigDecimal}/double/long/int).
+ * The standard promotions are performed when the operand types vary (double+int=double).
+ * For other options it defers to the registered overloader.
  *
  * @author Andy Clement
  * @author Ivo Smid
+ * @author Giovanni Dall'Oglio Risso
  * @since 3.0
  */
 public class OpPlus extends Operator {
 
+
 	public OpPlus(int pos, SpelNodeImpl... operands) {
 		super("+", pos, operands);
 		Assert.notEmpty(operands);
@@ -56,7 +62,7 @@ public class OpPlus extends Operator {
 		if (rightOp == null) { // If only one operand, then this is unary plus
 			Object operandOne = leftOp.getValueInternal(state).getValue();
 			if (operandOne instanceof Number) {
-				if (operandOne instanceof Double || operandOne instanceof Long) {
+				if (operandOne instanceof Double || operandOne instanceof Long || operandOne instanceof BigDecimal) {
 					return new TypedValue(operandOne);
 				}
 				if (operandOne instanceof Float) {
@@ -68,47 +74,57 @@ public class OpPlus extends Operator {
 		}
 
 		final TypedValue operandOneValue = leftOp.getValueInternal(state);
-		final Object operandOne = operandOneValue.getValue();
+		final Object leftOperand = operandOneValue.getValue();
 
 		final TypedValue operandTwoValue = rightOp.getValueInternal(state);
-		final Object operandTwo = operandTwoValue.getValue();
+		final Object rightOperand = operandTwoValue.getValue();
+
+		if (leftOperand instanceof Number && rightOperand instanceof Number) {
+			Number leftNumber = (Number) leftOperand;
+			Number rightNumber = (Number) rightOperand;
+
+			if (leftNumber instanceof BigDecimal || rightNumber instanceof BigDecimal) {
+				BigDecimal leftBigDecimal = NumberUtils.convertNumberToTargetClass(leftNumber, BigDecimal.class);
+				BigDecimal rightBigDecimal = NumberUtils.convertNumberToTargetClass(rightNumber, BigDecimal.class);
+				return new TypedValue(leftBigDecimal.add(rightBigDecimal));
+			}
 
-		if (operandOne instanceof Number && operandTwo instanceof Number) {
-			Number op1 = (Number) operandOne;
-			Number op2 = (Number) operandTwo;
-			if (op1 instanceof Double || op2 instanceof Double) {
-				return new TypedValue(op1.doubleValue() + op2.doubleValue());
+			if (leftNumber instanceof Double || rightNumber instanceof Double) {
+				return new TypedValue(leftNumber.doubleValue() + rightNumber.doubleValue());
 			}
-			if (op1 instanceof Float || op2 instanceof Float) {
-				return new TypedValue(op1.floatValue() + op2.floatValue());
+
+			if (leftNumber instanceof Float || rightNumber instanceof Float) {
+				return new TypedValue(leftNumber.floatValue() + rightNumber.floatValue());
 			}
-			if (op1 instanceof Long || op2 instanceof Long) {
-				return new TypedValue(op1.longValue() + op2.longValue());
+
+			if (leftNumber instanceof Long || rightNumber instanceof Long) {
+				return new TypedValue(leftNumber.longValue() + rightNumber.longValue());
 			}
+
 			// TODO what about overflow?
-			return new TypedValue(op1.intValue() + op2.intValue());
+			return new TypedValue(leftNumber.intValue() + rightNumber.intValue());
 		}
 
-		if (operandOne instanceof String && operandTwo instanceof String) {
-			return new TypedValue(new StringBuilder((String) operandOne).append(
-					(String) operandTwo).toString());
+		if (leftOperand instanceof String && rightOperand instanceof String) {
+			return new TypedValue(new StringBuilder((String) leftOperand).append(
+					(String) rightOperand).toString());
 		}
 
-		if (operandOne instanceof String) {
-			StringBuilder result = new StringBuilder((String) operandOne);
-			result.append((operandTwo == null ? "null" : convertTypedValueToString(
+		if (leftOperand instanceof String) {
+			StringBuilder result = new StringBuilder((String) leftOperand);
+			result.append((rightOperand == null ? "null" : convertTypedValueToString(
 					operandTwoValue, state)));
 			return new TypedValue(result.toString());
 		}
 
-		if (operandTwo instanceof String) {
-			StringBuilder result = new StringBuilder((operandOne == null ? "null"
+		if (rightOperand instanceof String) {
+			StringBuilder result = new StringBuilder((leftOperand == null ? "null"
 					: convertTypedValueToString(operandOneValue, state)));
-			result.append((String) operandTwo);
+			result.append((String) rightOperand);
 			return new TypedValue(result.toString());
 		}
 
-		return state.operate(Operation.ADD, operandOne, operandTwo);
+		return state.operate(Operation.ADD, leftOperand, rightOperand);
 	}
 
 	@Override
@@ -116,7 +132,6 @@ public class OpPlus extends Operator {
 		if (this.children.length<2) {  // unary plus
 			return new StringBuilder().append("+").append(getLeftOperand().toStringAST()).toString();
 		}
-
 		return super.toStringAST();
 	}
 
@@ -125,7 +140,6 @@ public class OpPlus extends Operator {
 		if (this.children.length < 2) {
 			return null;
 		}
-
 		return this.children[1];
 	}
 

spring-expression/src/main/java/org/springframework/expression/spel/ast/Operator.java

@@ -16,7 +16,11 @@
 
 package org.springframework.expression.spel.ast;
 
+import java.math.BigDecimal;
+
 import org.springframework.expression.spel.ExpressionState;
+import org.springframework.util.NumberUtils;
+import org.springframework.util.ObjectUtils;
 
 /**
  * Common supertype for operators that operate on either one or two operands. In the case
@@ -24,6 +28,7 @@ import org.springframework.expression.spel.ExpressionState;
  * is only one.
  *
  * @author Andy Clement
+ * @author Giovanni Dall'Oglio Risso
  * @since 3.0
  */
 public abstract class Operator extends SpelNodeImpl {
@@ -67,29 +72,35 @@ public abstract class Operator extends SpelNodeImpl {
 
 	protected boolean equalityCheck(ExpressionState state, Object left, Object right) {
 		if (left instanceof Number && right instanceof Number) {
-			Number op1 = (Number) left;
-			Number op2 = (Number) right;
+			Number leftNumber = (Number) left;
+			Number rightNumber = (Number) right;
+
+			if (leftNumber instanceof BigDecimal || rightNumber instanceof BigDecimal) {
+				BigDecimal leftBigDecimal = NumberUtils.convertNumberToTargetClass(leftNumber, BigDecimal.class);
+				BigDecimal rightBigDecimal = NumberUtils.convertNumberToTargetClass(rightNumber, BigDecimal.class);
+				return (leftBigDecimal == null ? rightBigDecimal == null : leftBigDecimal.compareTo(rightBigDecimal) == 0);
+			}
 
-			if (op1 instanceof Double || op2 instanceof Double) {
-				return (op1.doubleValue() == op2.doubleValue());
+			if (leftNumber instanceof Double || rightNumber instanceof Double) {
+				return (leftNumber.doubleValue() == rightNumber.doubleValue());
 			}
 
-			if (op1 instanceof Float || op2 instanceof Float) {
-				return (op1.floatValue() == op2.floatValue());
+			if (leftNumber instanceof Float || rightNumber instanceof Float) {
+				return (leftNumber.floatValue() == rightNumber.floatValue());
 			}
 
-			if (op1 instanceof Long || op2 instanceof Long) {
-				return (op1.longValue() == op2.longValue());
+			if (leftNumber instanceof Long || rightNumber instanceof Long) {
+				return (leftNumber.longValue() == rightNumber.longValue());
 			}
 
-			return (op1.intValue() == op2.intValue());
+			return (leftNumber.intValue() == rightNumber.intValue());
 		}
 
 		if (left != null && (left instanceof Comparable)) {
 			return (state.getTypeComparator().compare(left, right) == 0);
 		}
 
-		return (left == null ? right == null : left.equals(right));
+		return ObjectUtils.nullSafeEquals(left, right);
 	}
 
 }

spring-expression/src/main/java/org/springframework/expression/spel/ast/OperatorPower.java

@@ -16,15 +16,19 @@
 
 package org.springframework.expression.spel.ast;
 
+import java.math.BigDecimal;
+
 import org.springframework.expression.EvaluationException;
 import org.springframework.expression.Operation;
 import org.springframework.expression.TypedValue;
 import org.springframework.expression.spel.ExpressionState;
+import org.springframework.util.NumberUtils;
 
 /**
  * The power operator.
  *
  * @author Andy Clement
+ * @author Giovanni Dall'Oglio Risso
  * @since 3.0
  */
 public class OperatorPower extends Operator {
@@ -39,32 +43,41 @@ public class OperatorPower extends Operator {
 		SpelNodeImpl leftOp = getLeftOperand();
 		SpelNodeImpl rightOp = getRightOperand();
 
-		Object operandOne = leftOp.getValueInternal(state).getValue();
-		Object operandTwo = rightOp.getValueInternal(state).getValue();
-		if (operandOne instanceof Number && operandTwo instanceof Number) {
-			Number op1 = (Number) operandOne;
-			Number op2 = (Number) operandTwo;
-			if (op1 instanceof Double || op2 instanceof Double) {
-				return new TypedValue(Math.pow(op1.doubleValue(), op2.doubleValue()));
+		Object leftOperand = leftOp.getValueInternal(state).getValue();
+		Object rightOperand = rightOp.getValueInternal(state).getValue();
+
+		if (leftOperand instanceof Number && rightOperand instanceof Number) {
+			Number leftNumber = (Number) leftOperand;
+			Number rightNumber = (Number) rightOperand;
+
+			if (leftNumber instanceof BigDecimal) {
+				BigDecimal leftBigDecimal = NumberUtils.convertNumberToTargetClass(leftNumber, BigDecimal.class);
+				return new TypedValue(leftBigDecimal.pow(rightNumber.intValue()));
 			}
-			else if (op1 instanceof Float || op2 instanceof Float) {
-				return new TypedValue(Math.pow(op1.floatValue(), op2.floatValue()));
+
+			if (leftNumber instanceof Double || rightNumber instanceof Double) {
+				return new TypedValue(Math.pow(leftNumber.doubleValue(), rightNumber.doubleValue()));
+			}
+
+			if (leftNumber instanceof Float || rightNumber instanceof Float) {
+				return new TypedValue(Math.pow(leftNumber.floatValue(), rightNumber.floatValue()));
 			}
-			else if (op1 instanceof Long || op2 instanceof Long) {
-				double d = Math.pow(op1.longValue(), op2.longValue());
+
+			if (leftNumber instanceof Long || rightNumber instanceof Long) {
+				double d = Math.pow(leftNumber.longValue(), rightNumber.longValue());
+				return new TypedValue((long) d);
+			}
+
+			double d = Math.pow(leftNumber.longValue(), rightNumber.longValue());
+			if (d > Integer.MAX_VALUE) {
 				return new TypedValue((long) d);
 			}
 			else {
-				double d = Math.pow(op1.longValue(), op2.longValue());
-				if (d > Integer.MAX_VALUE) {
-					return new TypedValue((long) d);
-				}
-				else {
-					return new TypedValue((int) d);
-				}
+				return new TypedValue((int) d);
 			}
 		}
-		return state.operate(Operation.POWER, operandOne, operandTwo);
+
+		return state.operate(Operation.POWER, leftOperand, rightOperand);
 	}
 
 }

spring-expression/src/main/java/org/springframework/expression/spel/support/StandardTypeComparator.java

@@ -16,9 +16,12 @@
 
 package org.springframework.expression.spel.support;
 
+import java.math.BigDecimal;
+
 import org.springframework.expression.TypeComparator;
 import org.springframework.expression.spel.SpelEvaluationException;
 import org.springframework.expression.spel.SpelMessage;
+import org.springframework.util.NumberUtils;
 
 /**
  * A simple basic TypeComparator implementation. It supports comparison of numbers and
@@ -26,6 +29,7 @@ import org.springframework.expression.spel.SpelMessage;
  *
  * @author Andy Clement
  * @author Juergen Hoeller
+ * @author Giovanni Dall'Oglio Risso
  * @since 3.0
  */
 public class StandardTypeComparator implements TypeComparator {
@@ -45,27 +49,26 @@ public class StandardTypeComparator implements TypeComparator {
 		if (left instanceof Number && right instanceof Number) {
 			Number leftNumber = (Number) left;
 			Number rightNumber = (Number) right;
+
+			if (leftNumber instanceof BigDecimal || rightNumber instanceof BigDecimal) {
+				BigDecimal leftBigDecimal = NumberUtils.convertNumberToTargetClass(leftNumber, BigDecimal.class);
+				BigDecimal rightBigDecimal = NumberUtils.convertNumberToTargetClass(rightNumber, BigDecimal.class);
+				return leftBigDecimal.compareTo(rightBigDecimal);
+			}
+
 			if (leftNumber instanceof Double || rightNumber instanceof Double) {
-				double d1 = leftNumber.doubleValue();
-				double d2 = rightNumber.doubleValue();
-				return Double.compare(d1, d2);
+				return Double.compare(leftNumber.doubleValue(), rightNumber.doubleValue());
 			}
 
 			if (leftNumber instanceof Float || rightNumber instanceof Float) {
-				float f1 = leftNumber.floatValue();
-				float f2 = rightNumber.floatValue();
-				return Float.compare(f1, f2);
+				return Float.compare(leftNumber.floatValue(), rightNumber.floatValue());
 			}
 
 			if (leftNumber instanceof Long || rightNumber instanceof Long) {
-				Long l1 = leftNumber.longValue();
-				Long l2 = rightNumber.longValue();
-				return l1.compareTo(l2);
+				return Long.compare(leftNumber.longValue(), rightNumber.longValue());
 			}
 
-			Integer i1 = leftNumber.intValue();
-			Integer i2 = rightNumber.intValue();
-			return i1.compareTo(i2);
+			return Integer.compare(leftNumber.intValue(), rightNumber.intValue());
 		}
 
 		try {

spring-expression/src/test/java/org/springframework/expression/spel/DefaultComparatorUnitTests.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2012 the original author or authors.
+ * Copyright 2002-2013 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -18,6 +18,8 @@ package org.springframework.expression.spel;
 import static org.junit.Assert.assertFalse;
 import static org.junit.Assert.assertTrue;
 
+import java.math.BigDecimal;
+
 import org.junit.Test;
 import org.springframework.expression.EvaluationException;
 import org.springframework.expression.TypeComparator;
@@ -27,6 +29,7 @@ import org.springframework.expression.spel.support.StandardTypeComparator;
  * Unit tests for type comparison
  *
  * @author Andy Clement
+ * @author Giovanni Dall'Oglio Risso
  */
 public class DefaultComparatorUnitTests {
 
@@ -59,6 +62,35 @@ public class DefaultComparatorUnitTests {
 		assertTrue(comparator.compare(2L, 1L) > 0);
 	}
 
+	@Test
+	public void testNonPrimitiveNumbers() throws EvaluationException {
+		TypeComparator comparator = new StandardTypeComparator();
+
+		BigDecimal bdOne = new BigDecimal("1");
+		BigDecimal bdTwo = new BigDecimal("2");
+
+		assertTrue(comparator.compare(bdOne, bdTwo) < 0);
+		assertTrue(comparator.compare(bdOne, new BigDecimal("1")) == 0);
+		assertTrue(comparator.compare(bdTwo, bdOne) > 0);
+
+		assertTrue(comparator.compare(1, bdTwo) < 0);
+		assertTrue(comparator.compare(1, bdOne) == 0);
+		assertTrue(comparator.compare(2, bdOne) > 0);
+
+		assertTrue(comparator.compare(1.0d, bdTwo) < 0);
+		assertTrue(comparator.compare(1.0d, bdOne) == 0);
+		assertTrue(comparator.compare(2.0d, bdOne) > 0);
+
+		assertTrue(comparator.compare(1.0f, bdTwo) < 0);
+		assertTrue(comparator.compare(1.0f, bdOne) == 0);
+		assertTrue(comparator.compare(2.0f, bdOne) > 0);
+
+		assertTrue(comparator.compare(1L, bdTwo) < 0);
+		assertTrue(comparator.compare(1L, bdOne) == 0);
+		assertTrue(comparator.compare(2L, bdOne) > 0);
+
+	}
+
 	@Test
 	public void testNulls() throws EvaluationException {
 		TypeComparator comparator = new StandardTypeComparator();

spring-expression/src/test/java/org/springframework/expression/spel/EvaluationTests.java

@@ -26,6 +26,7 @@ import static org.junit.Assert.assertTrue;
 import static org.junit.Assert.fail;
 
 import java.lang.reflect.Method;
+import java.math.BigDecimal;
 import java.util.ArrayList;
 import java.util.List;
 import java.util.Map;
@@ -55,6 +56,7 @@ import org.springframework.expression.spel.testresources.TestPerson;
  * @author Mark Fisher
  * @author Sam Brannen
  * @author Phillip Webb
+ * @author Giovanni Dall'Oglio Risso
  * @since 3.0
  */
 public class EvaluationTests extends ExpressionTestCase {
@@ -636,6 +638,7 @@ public class EvaluationTests extends ExpressionTestCase {
 
 	static class Spr9751 {
 		public String type = "hello";
+		public BigDecimal bd = new BigDecimal("2");
 		public double ddd = 2.0d;
 		public float fff = 3.0f;
 		public long lll = 66666L;
@@ -755,6 +758,13 @@ public class EvaluationTests extends ExpressionTestCase {
 		ExpressionParser parser = new SpelExpressionParser(new SpelParserConfiguration(true, true));
 		Expression e = null;
 
+		// BigDecimal
+		e = parser.parseExpression("bd++");
+		assertTrue(new BigDecimal("2").equals(helper.bd));
+		BigDecimal return_bd = e.getValue(ctx,BigDecimal.class);
+		assertTrue(new BigDecimal("2").equals(return_bd));
+		assertTrue(new BigDecimal("3").equals(helper.bd));
+
 		// double
 		e = parser.parseExpression("ddd++");
 		assertEquals(2.0d,helper.ddd,0d);
@@ -801,6 +811,14 @@ public class EvaluationTests extends ExpressionTestCase {
 		ExpressionParser parser = new SpelExpressionParser(new SpelParserConfiguration(true, true));
 		Expression e = null;
 
+
+		// BigDecimal
+		e = parser.parseExpression("++bd");
+		assertTrue(new BigDecimal("2").equals(helper.bd));
+		BigDecimal return_bd = e.getValue(ctx,BigDecimal.class);
+		assertTrue(new BigDecimal("3").equals(return_bd));
+		assertTrue(new BigDecimal("3").equals(helper.bd));
+
 		// double
 		e = parser.parseExpression("++ddd");
 		assertEquals(2.0d,helper.ddd,0d);
@@ -907,6 +925,13 @@ public class EvaluationTests extends ExpressionTestCase {
 		ExpressionParser parser = new SpelExpressionParser(new SpelParserConfiguration(true, true));
 		Expression e = null;
 
+		// BigDecimal
+		e = parser.parseExpression("bd--");
+		assertTrue(new BigDecimal("2").equals(helper.bd));
+		BigDecimal return_bd = e.getValue(ctx,BigDecimal.class);
+		assertTrue(new BigDecimal("2").equals(return_bd));
+		assertTrue(new BigDecimal("1").equals(helper.bd));
+
 		// double
 		e = parser.parseExpression("ddd--");
 		assertEquals(2.0d,helper.ddd,0d);
@@ -953,6 +978,13 @@ public class EvaluationTests extends ExpressionTestCase {
 		ExpressionParser parser = new SpelExpressionParser(new SpelParserConfiguration(true, true));
 		Expression e = null;
 
+		// BigDecimal
+		e = parser.parseExpression("--bd");
+		assertTrue(new BigDecimal("2").equals(helper.bd));
+		BigDecimal return_bd = e.getValue(ctx,BigDecimal.class);
+		assertTrue(new BigDecimal("1").equals(return_bd));
+		assertTrue(new BigDecimal("1").equals(helper.bd));
+
 		// double
 		e = parser.parseExpression("--ddd");
 		assertEquals(2.0d,helper.ddd,0d);

spring-expression/src/test/java/org/springframework/expression/spel/ListTests.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2012 the original author or authors.
+ * Copyright 2002-2013 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -28,6 +28,7 @@ import org.springframework.expression.spel.standard.SpelExpressionParser;
  * Test usage of inline lists.
  *
  * @author Andy Clement
+ * @author Giovanni Dall'Oglio Risso
  * @since 3.0.4
  */
 public class ListTests extends ExpressionTestCase {
@@ -108,6 +109,14 @@ public class ListTests extends ExpressionTestCase {
 		evaluate("42 between {32, 42}", "true", Boolean.class);
 	}
 
+	@Test
+	public void testRelOperatorsBetween04() {
+		evaluate("new java.math.BigDecimal('1') between {new java.math.BigDecimal('1'),new java.math.BigDecimal('5')}", "true", Boolean.class);
+		evaluate("new java.math.BigDecimal('3') between {new java.math.BigDecimal('1'),new java.math.BigDecimal('5')}", "true", Boolean.class);
+		evaluate("new java.math.BigDecimal('5') between {new java.math.BigDecimal('1'),new java.math.BigDecimal('5')}", "true", Boolean.class);
+		evaluate("new java.math.BigDecimal('8') between {new java.math.BigDecimal('1'),new java.math.BigDecimal('5')}", "false", Boolean.class);
+	}
+
 	@Test
 	public void testRelOperatorsBetweenErrors02() {
 		evaluateAndCheckError("'abc' between {5,7}", SpelMessage.NOT_COMPARABLE, 6);

spring-expression/src/test/java/org/springframework/expression/spel/OperatorTests.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2012 the original author or authors.
+ * Copyright 2002-2013 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -17,6 +17,7 @@
 package org.springframework.expression.spel;
 
 import static org.junit.Assert.assertEquals;
+import java.math.BigDecimal;
 
 import org.junit.Test;
 import org.springframework.expression.spel.ast.Operator;
@@ -26,6 +27,7 @@ import org.springframework.expression.spel.standard.SpelExpression;
  * Tests the evaluation of expressions using relational operators.
  *
  * @author Andy Clement
+ * @author Giovanni Dall'Oglio Risso
  */
 public class OperatorTests extends ExpressionTestCase {
 
@@ -41,6 +43,8 @@ public class OperatorTests extends ExpressionTestCase {
 
 	@Test
 	public void testLessThan() {
+
+		evaluate("5 < 5", false, Boolean.class);
 		evaluate("3 < 5", true, Boolean.class);
 		evaluate("5 < 3", false, Boolean.class);
 		evaluate("3L < 5L", true, Boolean.class);
@@ -49,6 +53,15 @@ public class OperatorTests extends ExpressionTestCase {
 		evaluate("5.0d < 3.0d", false, Boolean.class);
 		evaluate("'abc' < 'def'",true,Boolean.class);
 		evaluate("'def' < 'abc'",false,Boolean.class);
+		evaluate("new java.math.BigDecimal('3') < new java.math.BigDecimal('5')", true, Boolean.class);
+		evaluate("new java.math.BigDecimal('5') < new java.math.BigDecimal('3')", false, Boolean.class);
+		evaluate("3 < new java.math.BigDecimal('5')", true, Boolean.class);
+		evaluate("new java.math.BigDecimal('3') < 5", true, Boolean.class);
+		evaluate("3L < new java.math.BigDecimal('5')", true, Boolean.class);
+		evaluate("3.0d < new java.math.BigDecimal('5')", true, Boolean.class);
+		evaluate("3L < new java.math.BigDecimal('3.1')", true, Boolean.class);
+		evaluate("3.0d < new java.math.BigDecimal('3.1')", true, Boolean.class);
+		evaluate("3.0d < new java.math.BigDecimal('3.0')", false, Boolean.class);
 
 		evaluate("3 lt 5", true, Boolean.class);
 		evaluate("5 lt 3", false, Boolean.class);
@@ -58,6 +71,15 @@ public class OperatorTests extends ExpressionTestCase {
 		evaluate("5.0d Lt 3.0d", false, Boolean.class);
 		evaluate("'abc' LT 'def'",true,Boolean.class);
 		evaluate("'def' lt 'abc'",false,Boolean.class);
+		evaluate("new java.math.BigDecimal('3') lt new java.math.BigDecimal('5')", true, Boolean.class);
+		evaluate("new java.math.BigDecimal('5') lt new java.math.BigDecimal('3')", false, Boolean.class);
+		evaluate("3 lt new java.math.BigDecimal('5')", true, Boolean.class);
+		evaluate("new java.math.BigDecimal('3') lt 5", true, Boolean.class);
+		evaluate("3L lt new java.math.BigDecimal('5')", true, Boolean.class);
+		evaluate("3.0d lt new java.math.BigDecimal('5')", true, Boolean.class);
+		evaluate("3L lt new java.math.BigDecimal('3.1')", true, Boolean.class);
+		evaluate("3.0d lt new java.math.BigDecimal('3.1')", true, Boolean.class);
+		evaluate("3.0d lt new java.math.BigDecimal('3.0')", false, Boolean.class);
 	}
 
 	@Test
@@ -74,6 +96,16 @@ public class OperatorTests extends ExpressionTestCase {
 		evaluate("'abc' <= 'def'",true,Boolean.class);
 		evaluate("'def' <= 'abc'",false,Boolean.class);
 		evaluate("'abc' <= 'abc'",true,Boolean.class);
+		evaluate("new java.math.BigDecimal('5') <= new java.math.BigDecimal('5')", true, Boolean.class);
+		evaluate("new java.math.BigDecimal('3') <= new java.math.BigDecimal('5')", true, Boolean.class);
+		evaluate("new java.math.BigDecimal('5') <= new java.math.BigDecimal('3')", false, Boolean.class);
+		evaluate("3 <= new java.math.BigDecimal('5')", true, Boolean.class);
+		evaluate("new java.math.BigDecimal('3') <= 5", true, Boolean.class);
+		evaluate("3L <= new java.math.BigDecimal('5')", true, Boolean.class);
+		evaluate("3.0d <= new java.math.BigDecimal('5')", true, Boolean.class);
+		evaluate("3L <= new java.math.BigDecimal('3.1')", true, Boolean.class);
+		evaluate("3.0d <= new java.math.BigDecimal('3.1')", true, Boolean.class);
+		evaluate("3.0d <= new java.math.BigDecimal('3.0')", true, Boolean.class);
 
 		evaluate("3 le 5", true, Boolean.class);
 		evaluate("5 le 3", false, Boolean.class);
@@ -87,6 +119,16 @@ public class OperatorTests extends ExpressionTestCase {
 		evaluate("'abc' Le 'def'",true,Boolean.class);
 		evaluate("'def' LE 'abc'",false,Boolean.class);
 		evaluate("'abc' le 'abc'",true,Boolean.class);
+		evaluate("new java.math.BigDecimal('5') le new java.math.BigDecimal('5')", true, Boolean.class);
+		evaluate("new java.math.BigDecimal('3') le new java.math.BigDecimal('5')", true, Boolean.class);
+		evaluate("new java.math.BigDecimal('5') le new java.math.BigDecimal('3')", false, Boolean.class);
+		evaluate("3 le new java.math.BigDecimal('5')", true, Boolean.class);
+		evaluate("new java.math.BigDecimal('3') le 5", true, Boolean.class);
+		evaluate("3L le new java.math.BigDecimal('5')", true, Boolean.class);
+		evaluate("3.0d le new java.math.BigDecimal('5')", true, Boolean.class);
+		evaluate("3L le new java.math.BigDecimal('3.1')", true, Boolean.class);
+		evaluate("3.0d le new java.math.BigDecimal('3.1')", true, Boolean.class);
+		evaluate("3.0d le new java.math.BigDecimal('3.0')", true, Boolean.class);
 	}
 
 	@Test
@@ -97,6 +139,16 @@ public class OperatorTests extends ExpressionTestCase {
 		evaluate("3.0f == 5.0f", false, Boolean.class);
 		evaluate("3.0f == 3.0f", true, Boolean.class);
 		evaluate("'abc' == null", false, Boolean.class);
+		evaluate("new java.math.BigDecimal('5') == new java.math.BigDecimal('5')", true, Boolean.class);
+		evaluate("new java.math.BigDecimal('3') == new java.math.BigDecimal('5')", false, Boolean.class);
+		evaluate("new java.math.BigDecimal('5') == new java.math.BigDecimal('3')", false, Boolean.class);
+		evaluate("3 == new java.math.BigDecimal('5')", false, Boolean.class);
+		evaluate("new java.math.BigDecimal('3') == 5", false, Boolean.class);
+		evaluate("3L == new java.math.BigDecimal('5')", false, Boolean.class);
+		evaluate("3.0d == new java.math.BigDecimal('5')", false, Boolean.class);
+		evaluate("3L == new java.math.BigDecimal('3.1')", false, Boolean.class);
+		evaluate("3.0d == new java.math.BigDecimal('3.1')", false, Boolean.class);
+		evaluate("3.0d == new java.math.BigDecimal('3.0')", true, Boolean.class);
 
 		evaluate("3 eq 5", false, Boolean.class);
 		evaluate("5 eQ 3", false, Boolean.class);
@@ -104,6 +156,16 @@ public class OperatorTests extends ExpressionTestCase {
 		evaluate("3.0f eq 5.0f", false, Boolean.class);
 		evaluate("3.0f EQ 3.0f", true, Boolean.class);
 		evaluate("'abc' EQ null", false, Boolean.class);
+		evaluate("new java.math.BigDecimal('5') eq new java.math.BigDecimal('5')", true, Boolean.class);
+		evaluate("new java.math.BigDecimal('3') eq new java.math.BigDecimal('5')", false, Boolean.class);
+		evaluate("new java.math.BigDecimal('5') eq new java.math.BigDecimal('3')", false, Boolean.class);
+		evaluate("3 eq new java.math.BigDecimal('5')", false, Boolean.class);
+		evaluate("new java.math.BigDecimal('3') eq 5", false, Boolean.class);
+		evaluate("3L eq new java.math.BigDecimal('5')", false, Boolean.class);
+		evaluate("3.0d eq new java.math.BigDecimal('5')", false, Boolean.class);
+		evaluate("3L eq new java.math.BigDecimal('3.1')", false, Boolean.class);
+		evaluate("3.0d eq new java.math.BigDecimal('3.1')", false, Boolean.class);
+		evaluate("3.0d eq new java.math.BigDecimal('3.0')", true, Boolean.class);
 	}
 
 	@Test
@@ -113,12 +175,32 @@ public class OperatorTests extends ExpressionTestCase {
 		evaluate("6 != 6", false, Boolean.class);
 		evaluate("3.0f != 5.0f", true, Boolean.class);
 		evaluate("3.0f != 3.0f", false, Boolean.class);
+		evaluate("new java.math.BigDecimal('5') != new java.math.BigDecimal('5')", false, Boolean.class);
+		evaluate("new java.math.BigDecimal('3') != new java.math.BigDecimal('5')", true, Boolean.class);
+		evaluate("new java.math.BigDecimal('5') != new java.math.BigDecimal('3')", true, Boolean.class);
+		evaluate("3 != new java.math.BigDecimal('5')", true, Boolean.class);
+		evaluate("new java.math.BigDecimal('3') != 5", true, Boolean.class);
+		evaluate("3L != new java.math.BigDecimal('5')", true, Boolean.class);
+		evaluate("3.0d != new java.math.BigDecimal('5')", true, Boolean.class);
+		evaluate("3L != new java.math.BigDecimal('3.1')", true, Boolean.class);
+		evaluate("3.0d != new java.math.BigDecimal('3.1')", true, Boolean.class);
+		evaluate("3.0d != new java.math.BigDecimal('3.0')", false, Boolean.class);
 
 		evaluate("3 ne 5", true, Boolean.class);
 		evaluate("5 nE 3", true, Boolean.class);
 		evaluate("6 Ne 6", false, Boolean.class);
 		evaluate("3.0f NE 5.0f", true, Boolean.class);
 		evaluate("3.0f ne 3.0f", false, Boolean.class);
+		evaluate("new java.math.BigDecimal('5') ne new java.math.BigDecimal('5')", false, Boolean.class);
+		evaluate("new java.math.BigDecimal('3') ne new java.math.BigDecimal('5')", true, Boolean.class);
+		evaluate("new java.math.BigDecimal('5') ne new java.math.BigDecimal('3')", true, Boolean.class);
+		evaluate("3 ne new java.math.BigDecimal('5')", true, Boolean.class);
+		evaluate("new java.math.BigDecimal('3') ne 5", true, Boolean.class);
+		evaluate("3L ne new java.math.BigDecimal('5')", true, Boolean.class);
+		evaluate("3.0d ne new java.math.BigDecimal('5')", true, Boolean.class);
+		evaluate("3L ne new java.math.BigDecimal('3.1')", true, Boolean.class);
+		evaluate("3.0d ne new java.math.BigDecimal('3.1')", true, Boolean.class);
+		evaluate("3.0d ne new java.math.BigDecimal('3.0')", false, Boolean.class);
 	}
 
 	@Test
@@ -135,11 +217,31 @@ public class OperatorTests extends ExpressionTestCase {
 		evaluate("'abc' >= 'def'",false,Boolean.class);
 		evaluate("'def' >= 'abc'",true,Boolean.class);
 		evaluate("'abc' >= 'abc'",true,Boolean.class);
+		evaluate("new java.math.BigDecimal('5') >= new java.math.BigDecimal('5')", true, Boolean.class);
+		evaluate("new java.math.BigDecimal('3') >= new java.math.BigDecimal('5')", false, Boolean.class);
+		evaluate("new java.math.BigDecimal('5') >= new java.math.BigDecimal('3')", true, Boolean.class);
+		evaluate("3 >= new java.math.BigDecimal('5')", false, Boolean.class);
+		evaluate("new java.math.BigDecimal('3') >= 5", false, Boolean.class);
+		evaluate("3L >= new java.math.BigDecimal('5')", false, Boolean.class);
+		evaluate("3.0d >= new java.math.BigDecimal('5')", false, Boolean.class);
+		evaluate("3L >= new java.math.BigDecimal('3.1')", false, Boolean.class);
+		evaluate("3.0d >= new java.math.BigDecimal('3.1')", false, Boolean.class);
+		evaluate("3.0d >= new java.math.BigDecimal('3.0')", true, Boolean.class);
 
 		evaluate("3 GE 5", false, Boolean.class);
 		evaluate("5 gE 3", true, Boolean.class);
 		evaluate("6 Ge 6", true, Boolean.class);
 		evaluate("3L ge 5L", false, Boolean.class);
+		evaluate("new java.math.BigDecimal('5') ge new java.math.BigDecimal('5')", true, Boolean.class);
+		evaluate("new java.math.BigDecimal('3') ge new java.math.BigDecimal('5')", false, Boolean.class);
+		evaluate("new java.math.BigDecimal('5') ge new java.math.BigDecimal('3')", true, Boolean.class);
+		evaluate("3 ge new java.math.BigDecimal('5')", false, Boolean.class);
+		evaluate("new java.math.BigDecimal('3') ge 5", false, Boolean.class);
+		evaluate("3L ge new java.math.BigDecimal('5')", false, Boolean.class);
+		evaluate("3.0d ge new java.math.BigDecimal('5')", false, Boolean.class);
+		evaluate("3L ge new java.math.BigDecimal('3.1')", false, Boolean.class);
+		evaluate("3.0d ge new java.math.BigDecimal('3.1')", false, Boolean.class);
+		evaluate("3.0d ge new java.math.BigDecimal('3.0')", true, Boolean.class);
 	}
 
 	@Test
@@ -152,11 +254,29 @@ public class OperatorTests extends ExpressionTestCase {
 		evaluate("5.0d > 3.0d", true, Boolean.class);
 		evaluate("'abc' > 'def'",false,Boolean.class);
 		evaluate("'def' > 'abc'",true,Boolean.class);
+		evaluate("new java.math.BigDecimal('3') > new java.math.BigDecimal('5')", false, Boolean.class);
+		evaluate("new java.math.BigDecimal('5') > new java.math.BigDecimal('3')", true, Boolean.class);
+		evaluate("3 > new java.math.BigDecimal('5')", false, Boolean.class);
+		evaluate("new java.math.BigDecimal('3') > 5", false, Boolean.class);
+		evaluate("3L > new java.math.BigDecimal('5')", false, Boolean.class);
+		evaluate("3.0d > new java.math.BigDecimal('5')", false, Boolean.class);
+		evaluate("3L > new java.math.BigDecimal('3.1')", false, Boolean.class);
+		evaluate("3.0d > new java.math.BigDecimal('3.1')", false, Boolean.class);
+		evaluate("3.0d > new java.math.BigDecimal('3.0')", false, Boolean.class);
 
 		evaluate("3.0d gt 5.0d", false, Boolean.class);
 		evaluate("5.0d gT 3.0d", true, Boolean.class);
 		evaluate("'abc' Gt 'def'",false,Boolean.class);
 		evaluate("'def' GT 'abc'",true,Boolean.class);
+		evaluate("new java.math.BigDecimal('3') gt new java.math.BigDecimal('5')", false, Boolean.class);
+		evaluate("new java.math.BigDecimal('5') gt new java.math.BigDecimal('3')", true, Boolean.class);
+		evaluate("3 gt new java.math.BigDecimal('5')", false, Boolean.class);
+		evaluate("new java.math.BigDecimal('3') gt 5", false, Boolean.class);
+		evaluate("3L gt new java.math.BigDecimal('5')", false, Boolean.class);
+		evaluate("3.0d gt new java.math.BigDecimal('5')", false, Boolean.class);
+		evaluate("3L gt new java.math.BigDecimal('3.1')", false, Boolean.class);
+		evaluate("3.0d gt new java.math.BigDecimal('3.1')", false, Boolean.class);
+		evaluate("3.0d gt new java.math.BigDecimal('3.0')", false, Boolean.class);
 	}
 
 	@Test
@@ -169,6 +289,32 @@ public class OperatorTests extends ExpressionTestCase {
 		evaluate("3.0d * 5.0d", 15.0d, Double.class);
 	}
 
+	@Test
+	public void testMixedOperandsBigDecimal() {
+		evaluate("3 * new java.math.BigDecimal('5')", new BigDecimal("15"), BigDecimal.class);
+		evaluate("3L * new java.math.BigDecimal('5')", new BigDecimal("15"), BigDecimal.class);
+		evaluate("3.0d * new java.math.BigDecimal('5')", new BigDecimal("15.0"), BigDecimal.class);
+
+		evaluate("3 + new java.math.BigDecimal('5')", new BigDecimal("8"), BigDecimal.class);
+		evaluate("3L + new java.math.BigDecimal('5')", new BigDecimal("8"), BigDecimal.class);
+		evaluate("3.0d + new java.math.BigDecimal('5')", new BigDecimal("8.0"), BigDecimal.class);
+
+		evaluate("3 - new java.math.BigDecimal('5')", new BigDecimal("-2"), BigDecimal.class);
+		evaluate("3L - new java.math.BigDecimal('5')", new BigDecimal("-2"), BigDecimal.class);
+		evaluate("3.0d - new java.math.BigDecimal('5')", new BigDecimal("-2.0"), BigDecimal.class);
+
+		evaluate("3 / new java.math.BigDecimal('5')", new BigDecimal("1"), BigDecimal.class);
+		evaluate("3 / new java.math.BigDecimal('5.0')", new BigDecimal("0.6"), BigDecimal.class);
+		evaluate("3 / new java.math.BigDecimal('5.00')", new BigDecimal("0.60"), BigDecimal.class);
+		evaluate("3L / new java.math.BigDecimal('5.0')", new BigDecimal("0.6"), BigDecimal.class);
+		evaluate("3.0d / new java.math.BigDecimal('5.0')", new BigDecimal("0.6"), BigDecimal.class);
+
+		evaluate("5 % new java.math.BigDecimal('3')", new BigDecimal("2"), BigDecimal.class);
+		evaluate("3 % new java.math.BigDecimal('5')", new BigDecimal("3"), BigDecimal.class);
+		evaluate("3L % new java.math.BigDecimal('5')", new BigDecimal("3"), BigDecimal.class);
+		evaluate("3.0d % new java.math.BigDecimal('5')", new BigDecimal("3.0"), BigDecimal.class);
+	}
+
 	@Test
 	public void testMathOperatorAdd02() {
 		evaluate("'hello' + ' ' + 'world'", "hello world", String.class);
@@ -201,6 +347,7 @@ public class OperatorTests extends ExpressionTestCase {
 		evaluate("7 + 2", "9", Integer.class);
 		evaluate("3.0f + 5.0f", 8.0f, Float.class);
 		evaluate("3.0d + 5.0d", 8.0d, Double.class);
+		evaluate("3 + new java.math.BigDecimal('5')", new BigDecimal("8"), BigDecimal.class);
 
 		evaluate("'ab' + 2", "ab2", String.class);
 		evaluate("2 + 'a'", "2a", String.class);
@@ -217,6 +364,7 @@ public class OperatorTests extends ExpressionTestCase {
 		evaluate("+5d",5d,Double.class);
 		evaluate("+5L",5L,Long.class);
 		evaluate("+5",5,Integer.class);
+		evaluate("+new java.math.BigDecimal('5')", new BigDecimal("5"),BigDecimal.class);
 		evaluateAndCheckError("+'abc'",SpelMessage.OPERATOR_NOT_SUPPORTED_BETWEEN_TYPES);
 
 		// string concatenation
@@ -240,6 +388,7 @@ public class OperatorTests extends ExpressionTestCase {
 		evaluate("-5d",-5d,Double.class);
 		evaluate("-5L",-5L,Long.class);
 		evaluate("-5",-5,Integer.class);
+		evaluate("-new java.math.BigDecimal('5')", new BigDecimal("-5"),BigDecimal.class);
 		evaluateAndCheckError("-'abc'",SpelMessage.OPERATOR_NOT_SUPPORTED_BETWEEN_TYPES);
 	}
 
@@ -249,6 +398,8 @@ public class OperatorTests extends ExpressionTestCase {
 		evaluate("3L%2L",1L,Long.class);
 		evaluate("3.0f%2.0f",1f,Float.class);
 		evaluate("5.0d % 3.1d", 1.9d, Double.class);
+		evaluate("new java.math.BigDecimal('5') % new java.math.BigDecimal('3')", new BigDecimal("2"), BigDecimal.class);
+		evaluate("new java.math.BigDecimal('5') % 3", new BigDecimal("2"), BigDecimal.class);
 		evaluateAndCheckError("'abc'%'def'",SpelMessage.OPERATOR_NOT_SUPPORTED_BETWEEN_TYPES);
 	}
 
@@ -258,6 +409,10 @@ public class OperatorTests extends ExpressionTestCase {
 		evaluate("4L/2L",2L,Long.class);
 		evaluate("3.0f div 5.0f", 0.6f, Float.class);
 		evaluate("4L DIV 2L",2L,Long.class);
+		evaluate("new java.math.BigDecimal('3') / 5", new BigDecimal("1"), BigDecimal.class);
+		evaluate("new java.math.BigDecimal('3.0') / 5", new BigDecimal("0.6"), BigDecimal.class);
+		evaluate("new java.math.BigDecimal('3.00') / 5", new BigDecimal("0.60"), BigDecimal.class);
+		evaluate("new java.math.BigDecimal('3.00') / new java.math.BigDecimal('5.0000')", new BigDecimal("0.6000"), BigDecimal.class);
 		evaluateAndCheckError("'abc'/'def'",SpelMessage.OPERATOR_NOT_SUPPORTED_BETWEEN_TYPES);
 	}
 
@@ -284,6 +439,18 @@ public class OperatorTests extends ExpressionTestCase {
 		evaluate("6.0d % 3.5d", 2.5d, Double.class);
 	}
 
+
+	@Test
+	public void testBigDecimals() {
+		evaluate("3 + new java.math.BigDecimal('5')", new BigDecimal("8"), BigDecimal.class);
+		evaluate("3 - new java.math.BigDecimal('5')", new BigDecimal("-2"), BigDecimal.class);
+		evaluate("3 * new java.math.BigDecimal('5')", new BigDecimal("15"), BigDecimal.class);
+		evaluate("3 / new java.math.BigDecimal('5')", new BigDecimal("1"), BigDecimal.class);
+		evaluate("5 % new java.math.BigDecimal('3')", new BigDecimal("2"), BigDecimal.class);
+		evaluate("new java.math.BigDecimal('5') % 3", new BigDecimal("2"), BigDecimal.class);
+		evaluate("new java.math.BigDecimal('5') ^ 3", new BigDecimal("125"), BigDecimal.class);
+	}
+
 	@Test
 	public void testOperatorNames() throws Exception {
 		Operator node = getOperatorNode((SpelExpression)parser.parseExpression("1==3"));
@@ -335,6 +502,7 @@ public class OperatorTests extends ExpressionTestCase {
 		evaluate("3.0d^2.0d",9.0d,Double.class);
 		evaluate("3L^2L",9L,Long.class);
 		evaluate("(2^32)^2",9223372036854775807L,Long.class);
+		evaluate("new java.math.BigDecimal('5') ^ 3", new BigDecimal("125"), BigDecimal.class);
 	}
 
 	@Test