BATCH-2054: StaxEventItemWriter fails on a NullPointerException with

Spring OXM 3.2.x.

spring-batch-infrastructure/src/main/java/org/springframework/batch/item/xml/StaxEventItemWriter.java

@@ -658,7 +658,7 @@ ResourceAwareItemWriterItemStream<T>, InitializingBean {
 		finally {
 
 			try {
-				eventWriter.close();
+				delegateEventWriter.close();
 			}
 			catch (XMLStreamException e) {
 				log.error("Unable to close file resource: [" + resource + "] " + e);

spring-batch-infrastructure/src/main/java/org/springframework/batch/item/xml/stax/NoStartEndDocumentStreamWriter.java

@@ -39,4 +39,10 @@ public class NoStartEndDocumentStreamWriter extends AbstractEventWriterWrapper {
 			wrappedEventWriter.add(event);
 		}
 	}
+    
+    // prevents OXM Marshallers from closing the XMLEventWriter
+    @Override
+    public void close() throws XMLStreamException {
+    	flush();
+    }
 }