java.lang.StringIndexOutOfBoundsException: String index out of range: 0
	at java.lang.String.charAt(String.java:516)
	at org.netbeans.modules.java.environment.Utilities.createClassPath(Utilities.java:85)
	at org.netbeans.modules.web.core.jsploader.JspDataObject.getServletCompiler(JspDataObject.java:414)
	at org.netbeans.modules.web.core.jsploader.JspDataObject.createCompiler(JspDataObject.java:279)
	at org.netbeans.modules.web.core.jsploader.JspCompilerSupport.addToJob(JspCompilerSupport.java:67)
	at org.openide.actions.AbstractCompileAction.createJob(AbstractCompileAction.java:250)
	at org.openide.actions.AbstractCompileAction.compileNodes(AbstractCompileAction.java:107)
	at org.openide.actions.AbstractCompileAction.performAction(AbstractCompileAction.java:46)
	at org.openide.util.actions.NodeAction.performAction(NodeAction.java:92)
	at org.openide.util.actions.NodeAction.actionPerformed(NodeAction.java:83)
	at org.netbeans.core.ModuleActions$1.run(ModuleActions.java:76)
	at org.openide.util.Task.run(Task.java:124)
[catch] at org.openide.util.RequestProcessor$ProcessorThread.run(RequestProcessor.java:626)