HHH-8364 exclude-unlisted-classes parsing handles content incorrectly

Parsing for exclude-unlisted-classes handles content within the element incorrectly. The value correctly defaults to false. <exclude-unlisted-classes /> and <exclude-unlisted-classes>true</exclude-unlisted-classes> are correctly parsed as true. However, <exclude-unlisted-classes>false</exclude-unlisted-classes> is incorrectly parsed as true. This commit fixes that.

Author: beamerblvd

hibernate-entitymanager/src/main/java/org/hibernate/jpa/boot/internal/PersistenceXmlParser.java

@@ -217,7 +217,7 @@ else if ( tag.equals( "jar-file" ) ) {
 					persistenceUnit.addJarFileUrl( ArchiveHelper.getURLFromPath( extractContent( element ) ) );
 				}
 				else if ( tag.equals( "exclude-unlisted-classes" ) ) {
-					persistenceUnit.setExcludeUnlistedClasses( true );
+					persistenceUnit.setExcludeUnlistedClasses( extractBooleanContent(element, true) );
 				}
 				else if ( tag.equals( "delimited-identifiers" ) ) {
 					persistenceUnit.setUseQuotedIdentifiers( true );
@@ -270,6 +270,14 @@ private static String extractContent(Element element, String defaultStr) {
 		return result.toString().trim();
 	}
 
+	private static boolean extractBooleanContent(Element element, boolean defaultBool) {
+		String content = extractContent( element );
+		if (content != null && content.length() > 0) {
+			return Boolean.valueOf(content);
+		}
+		return defaultBool;
+	}
+
 	private static PersistenceUnitTransactionType parseTransactionType(String value) {
 		if ( StringHelper.isEmpty( value ) ) {
 			return null;