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When launching the NMC UI, OpenWebStart starts the application download process. The launch fails after loading completes. OpenWebStart displays: Application Download of 'NetWorker Management Console on <NMC server>' in progress OpenWebStart is configured correctly The OpenWebStart Stage2 launch log contains a fatal XML parsing error: [Fatal Error] :107:4: The element type "argument" must be terminated by the matching end-tag "</argument>"NullPointerException: Cannot invoke "COM.legato.gwt.framework.GwtClientConnection.sendMessage(...)"org.xml.sax.SAXParseException; lineNumber: 107; columnNumber: 4; The element type "argument" must be terminated by the matching end-tag "</argument>".
The gconsole.jnlp file served by the NMC server contains malformed XML. Specifically, an <argument> element is missing its proper closing tag ( </argument> ). Because the JNLP file is invalid XML, OpenWebStart cannot parse it and terminates the launch process.
Correct the gconsole.jnlp File on the NMC Server Open the following file: C:\Program Files\EMC NetWorker\Management\GST\web\gconsole.jnlp Locate the <application-desc> section. Find the incorrectly terminated <argument> entry. Ensure the argument element is properly closed with: </argument> Example: <argument>example_value</argument> Save the file. Remove Cached JNLP Files on the Client On the client workstation: Delete any previously downloaded copies of gconsole.jnlp . Download a fresh copy from the NMC server. Launch NMC Double-click the newly downloaded gconsole.jnlp file. Verify that OpenWebStart launches the NetWorker Management Console successfully. Validation. After correcting the XML and downloading a new JNLP file: OpenWebStart should complete the launch process without XML parsing errors. The NMC UI should open normally.
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