Fixed primitive type assignability in BeanUtils.copyProperties

Issue: SPR-11231

spring-beans/src/main/java/org/springframework/beans/BeanUtils.java

@@ -600,7 +600,7 @@ public abstract class BeanUtils {
 				if (sourcePd != null) {
 					Method readMethod = sourcePd.getReadMethod();
 					if (readMethod != null &&
-							writeMethod.getParameterTypes()[0].isAssignableFrom(readMethod.getReturnType())) {
+							ClassUtils.isAssignable(writeMethod.getParameterTypes()[0], readMethod.getReturnType())) {
 						try {
 							if (!Modifier.isPublic(readMethod.getDeclaringClass().getModifiers())) {
 								readMethod.setAccessible(true);

spring-beans/src/test/java/org/springframework/beans/BeanUtilsTests.java

@@ -189,9 +189,13 @@ public final class BeanUtilsTests {
 	public void testCopyPropertiesWithInvalidProperty() {
 		InvalidProperty source = new InvalidProperty();
 		source.setName("name");
+		source.setFlag1(true);
+		source.setFlag2(true);
 		InvalidProperty target = new InvalidProperty();
 		BeanUtils.copyProperties(source, target);
 		assertEquals(target.getName(), "name");
+		assertTrue(target.getFlag1());
+		assertTrue(target.getFlag2());
 	}
 
 	@Test
@@ -308,6 +312,10 @@ public final class BeanUtilsTests {
 
 		private String value;
 
+		private boolean flag1;
+
+		private boolean flag2;
+
 		public void setName(String name) {
 			this.name = name;
 		}
@@ -323,6 +331,22 @@ public final class BeanUtilsTests {
 		public String getValue() {
 			return this.value;
 		}
+
+		public void setFlag1(boolean flag1) {
+			this.flag1 = flag1;
+		}
+
+		public Boolean getFlag1() {
+			return this.flag1;
+		}
+
+		public void setFlag2(Boolean flag2) {
+			this.flag2 = flag2;
+		}
+
+		public boolean getFlag2() {
+			return this.flag2;
+		}
 	}