JDev Startup Issue

Many times, we may encounter JDev doesnt startup in our linux environment after installation.
The JDev studio when started may throw the below exception as,


oracle.ide.marshal.xml.Object2DomException: Error parsing XML --
/home/user/.jdeveloper/system11.1.1.7.40.64.11/o.jdeveloper/applications.xml
at
oracle.ide.marshal.xml.Object2Dom.newO2DException(Object2Dom.java:1229)
at
oracle.ide.marshal.xml.Object2Dom.getDocument(Object2Dom.java:1189)
at
oracle.ide.marshal.xml.Object2Dom.getDocument(Object2Dom.java:1134)
at oracle.ide.marshal.xml.Object2Dom.open(Object2Dom.java:544)
at oracle.ide.model.DataContainer.loadImpl(DataContainer.java:552)
at oracle.ide.model.Node.load(Node.java:2220)
at oracle.ide.model.Node.open(Node.java:959)
at oracle.ide.model.Node.open(Node.java:922)
Caused by: oracle.xml.parser.v2.XMLParseException: Start of root element
expected.
at oracle.xml.parser.v2.XMLError.flushErrors1(XMLError.java:323)


Its because of an existence of a system directory inside ' /home/user/.jdeveloper' i.e
' /home/user/.jdeveloper/system11.1.1.7.40.64.11'


Resolution: Remove the system directory in /home/user/.jdeveloper and Start the JDev Studio.


Note: the directory ".jdeveloper"is a hidden directory, do
la -latr /home/user
to view the hidden directory