DATAMONGO-2156 - Remove dependency to javax.xml.bind.

We now no longer use DatatypeConverter to convert byte[] to its Base64-representation but use Spring Framework's Base64 utils.

Original pull request: #626.

spring-data-mongodb/src/main/java/org/springframework/data/mongodb/repository/query/ExpressionEvaluatingParameterBinder.java

@@ -33,8 +33,6 @@ import java.util.function.Supplier;
 import java.util.regex.Matcher;
 import java.util.regex.Pattern;
 
-import javax.xml.bind.DatatypeConverter;
-
 import org.bson.codecs.BinaryCodec;
 import org.bson.codecs.Codec;
 import org.bson.codecs.UuidCodec;
@@ -48,6 +46,7 @@ import org.springframework.expression.Expression;
 import org.springframework.expression.spel.standard.SpelExpressionParser;
 import org.springframework.lang.Nullable;
 import org.springframework.util.Assert;
+import org.springframework.util.Base64Utils;
 import org.springframework.util.CollectionUtils;
 import org.springframework.util.StringUtils;
 
@@ -579,7 +578,7 @@ class ExpressionEvaluatingParameterBinder {
 		public String encode(CodecRegistryProvider provider, boolean quoted) {
 
 			if (quoted) {
-				return DatatypeConverter.printBase64Binary(this.value);
+				return Base64Utils.encodeToString(this.value);
 			}
 
 			return encode(provider, new Binary(this.value), BinaryCodec::new);

spring-data-mongodb/src/test/java/org/springframework/data/mongodb/repository/query/ReactiveStringBasedMongoQueryUnitTests.java

@@ -27,8 +27,6 @@ import java.lang.reflect.Method;
 import java.util.Collections;
 import java.util.Map;
 
-import javax.xml.bind.DatatypeConverter;
-
 import org.bson.BSON;
 import org.bson.Document;
 import org.junit.Before;
@@ -53,6 +51,7 @@ import org.springframework.data.repository.Repository;
 import org.springframework.data.repository.core.support.DefaultRepositoryMetadata;
 import org.springframework.data.repository.query.QueryMethodEvaluationContextProvider;
 import org.springframework.expression.spel.standard.SpelExpressionParser;
+import org.springframework.util.Base64Utils;
 
 /**
  * Unit tests for {@link ReactiveStringBasedMongoQuery}.
@@ -219,7 +218,7 @@ public class ReactiveStringBasedMongoQueryUnitTests {
 
 		org.springframework.data.mongodb.core.query.Query query = mongoQuery.createQuery(accesor);
 		org.springframework.data.mongodb.core.query.Query reference = new BasicQuery("{'lastname' : { '$binary' : '"
-				+ DatatypeConverter.printBase64Binary(binaryData) + "', '$type' : '" + BSON.B_GENERAL + "'}}");
+				+ Base64Utils.encodeToString(binaryData) + "', '$type' : '" + BSON.B_GENERAL + "'}}");
 
 		assertThat(query.getQueryObject().toJson(), is(reference.getQueryObject().toJson()));
 	}

spring-data-mongodb/src/test/java/org/springframework/data/mongodb/repository/query/StringBasedMongoQueryUnitTests.java

@@ -29,8 +29,6 @@ import java.util.List;
 import java.util.Map;
 import java.util.UUID;
 
-import javax.xml.bind.DatatypeConverter;
-
 import org.bson.BSON;
 import org.bson.Document;
 import org.junit.Before;
@@ -56,6 +54,7 @@ import org.springframework.data.repository.Repository;
 import org.springframework.data.repository.core.support.DefaultRepositoryMetadata;
 import org.springframework.data.repository.query.QueryMethodEvaluationContextProvider;
 import org.springframework.expression.spel.standard.SpelExpressionParser;
+import org.springframework.util.Base64Utils;
 
 /**
  * Unit tests for {@link StringBasedMongoQuery}.
@@ -318,7 +317,7 @@ public class StringBasedMongoQueryUnitTests {
 
 		org.springframework.data.mongodb.core.query.Query query = mongoQuery.createQuery(accessor);
 		org.springframework.data.mongodb.core.query.Query reference = new BasicQuery("{'lastname' : { '$binary' : '"
-				+ DatatypeConverter.printBase64Binary(binaryData) + "', '$type' : '" + BSON.B_GENERAL + "'}}");
+				+ Base64Utils.encodeToString(binaryData) + "', '$type' : '" + BSON.B_GENERAL + "'}}");
 
 		assertThat(query.getQueryObject().toJson(), is(reference.getQueryObject().toJson()));
 	}
@@ -333,7 +332,7 @@ public class StringBasedMongoQueryUnitTests {
 
 		org.springframework.data.mongodb.core.query.Query query = mongoQuery.createQuery(accessor);
 		org.springframework.data.mongodb.core.query.Query reference = new BasicQuery("{'lastname' : { $in: [{'$binary' : '"
-				+ DatatypeConverter.printBase64Binary(binaryData) + "', '$type' : '" + BSON.B_GENERAL + "'}] }}");
+				+ Base64Utils.encodeToString(binaryData) + "', '$type' : '" + BSON.B_GENERAL + "'}] }}");
 
 		assertThat(query.getQueryObject().toJson(), is(reference.getQueryObject().toJson()));
 	}