fixed WebSphereUowTransactionManager regression: correctly roll back in case of exception (SPR-6695)

org.springframework.transaction/src/main/java/org/springframework/transaction/jta/WebSphereUowTransactionManager.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2009 the original author or authors.
+ * Copyright 2002-2010 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.
@@ -339,6 +339,7 @@ public class WebSphereUowTransactionManager extends JtaTransactionManager
 			}
 			catch (Throwable ex) {
 				this.exception = ex;
+				uowManager.setRollbackOnly();
 			}
 			finally {
 				if (status.isLocalRollbackOnly()) {