Catch more general Hibernate 4.2 LinkageError

Update HibernateJpaAutoConfiguration to catch LinkageError rather than
NoClassDefFoundError. Required due to the fact that JBoss EAP 6 wraps
NoClassDefFoundErrors.

Fixes gh-3605

Author: tan9

spring-boot-autoconfigure/src/main/java/org/springframework/boot/autoconfigure/orm/jpa/HibernateJpaAutoConfiguration.java

@@ -147,8 +147,9 @@ private void configureSpringJtaPlatform(Map<String, Object> vendorProperties,
 			vendorProperties.put(JTA_PLATFORM, new SpringJtaPlatform(
 					jtaTransactionManager));
 		}
-		catch (NoClassDefFoundError ex) {
-			// Can happen if Hibernate 4.2 is used
+		catch (LinkageError ex) {
+			// NoClassDefFoundError can happen if Hibernate 4.2 is used and some
+			// containers (e.g. JBoss EAP 6) wraps it in the superclass LinkageError
 			if (!isUsingJndi()) {
 				throw new IllegalStateException("Unable to set Hibernate JTA "
 						+ "platform, are you using the correct "