java.beans.PropertyVetoException: Not allowed
        at org.openide.text.CloneableEditorSupport$Listener.vetoableChange(CloneableEditorSupport.java:2849)
        at org.netbeans.editor.BaseDocument.notifyModify(BaseDocument.java:1828)
Caused: javax.swing.text.BadLocationException: remove() vetoed
        at org.netbeans.editor.BaseDocument.notifyModifyCheckStart(BaseDocument.java:987)
        at org.netbeans.editor.BaseDocument.remove(BaseDocument.java:876)
        at javax.swing.text.AbstractDocument.replace(AbstractDocument.java:652)
        at org.netbeans.modules.xml.xdm.visitor.Utils.replaceDocument(Utils.java:111)
        at org.netbeans.modules.xml.xdm.visitor.Utils.replaceDocument(Utils.java:123)
Caused: java.lang.IllegalStateException: It is possible that model source file is locked
        at org.netbeans.modules.xml.xdm.XDMModel.flushDocument(XDMModel.java:877)
        at org.netbeans.modules.xml.xdm.XDMModel.flush(XDMModel.java:145)
        at org.netbeans.modules.xml.xdm.xam.XDMAccess.flush(XDMAccess.java:110)
        at org.netbeans.modules.xml.xam.AbstractModel.endTransaction(AbstractModel.java:326)
        at org.netbeans.modules.xml.xam.AbstractModel.endTransaction(AbstractModel.java:313)
        at org.netbeans.modules.maven.model.Utilities.performPOMModelOperations(Utilities.java:333)
        at org.netbeans.modules.maven.operations.RenameProjectPanel$5.run(RenameProjectPanel.java:288)
        at org.openide.util.RequestProcessor$Task.run(RequestProcessor.java:602)
        at org.openide.util.RequestProcessor$Processor.run(RequestProcessor.java:1084)
Caused: org.openide.util.RequestProcessor$FastItem: task failed due to: java.lang.IllegalStateException: It is possible that model source file is locked