[jbosstools-issues] [JBoss JIRA] (JBIDE-21067) Error Log view is polluted with NullPointerExceptions when debugging JavaScript with ChromeDevTools

[Denis Golovin (JIRA)]

Denis Golovin created JBIDE-21067:
-------------------------------------

             Summary: Error Log view is polluted with NullPointerExceptions when debugging JavaScript with ChromeDevTools
                 Key: JBIDE-21067
                 URL: https://issues.jboss.org/browse/JBIDE-21067
             Project: Tools (JBoss Tools)
          Issue Type: Feature Request
          Components: common/jst/core
    Affects Versions: 4.3.0.Final, 4.4.0.Alpha1
            Reporter: Denis Golovin


When debugging JavaScript with ChromeDevTools for Java it creates special project inside current workspace and populate it with .js files using eclipse file system (EFS) API. IReource instance for .js file inside project returns null if requested for location through IResource.getLocation() method. null is valid return value according to JavaDoc for the method.

Now JBossTools code fails with NullPointerException and pollutes Error Log View
{code}
java.lang.NullPointerException
	at org.jboss.tools.common.model.util.EclipseResourceUtil.createObjectForResource(EclipseResourceUtil.java:368)
	at org.jboss.tools.jst.web.ui.navigator.XContentProvider.hasChildren(XContentProvider.java:96)
	at org.eclipse.ui.internal.navigator.extensions.SafeDelegateTreeContentProvider.hasChildren(SafeDelegateTreeContentProvider.java:112)
	at org.eclipse.ui.internal.navigator.NavigatorContentServiceContentProvider.callNormalHasChildren(NavigatorContentServiceContentProvider.java:444)
	at org.eclipse.ui.internal.navigator.NavigatorContentServiceContentProvider.access$4(NavigatorContentServiceContentProvider.java:439)
	at org.eclipse.ui.internal.navigator.NavigatorContentServiceContentProvider$3.run(NavigatorContentServiceContentProvider.java:407)
	at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:42)
	at org.eclipse.ui.internal.navigator.NavigatorContentServiceContentProvider.hasChildren(NavigatorContentServiceContentProvider.java:392)
	at org.eclipse.ui.internal.navigator.NavigatorContentServiceContentProvider.hasChildren(NavigatorContentServiceContentProvider.java:436)
	at org.eclipse.jface.viewers.AbstractTreeViewer.isExpandable(AbstractTreeViewer.java:2124)
	at org.eclipse.jface.viewers.TreeViewer.isExpandable(TreeViewer.java:538)
	at org.eclipse.jface.viewers.AbstractTreeViewer.isExpandable(AbstractTreeViewer.java:2162)
	at org.eclipse.jface.viewers.AbstractTreeViewer.updatePlus(AbstractTreeViewer.java:2844)
	at org.eclipse.jface.viewers.TreeViewer.updatePlus(TreeViewer.java:786)
	at org.eclipse.jface.viewers.AbstractTreeViewer.createTreeItem(AbstractTreeViewer.java:840)
	at org.eclipse.jface.viewers.AbstractTreeViewer.lambda$0(AbstractTreeViewer.java:816)
	at org.eclipse.jface.viewers.AbstractTreeViewer$$Lambda$43/10378869.run(Unknown Source)
	at org.eclipse.swt.custom.BusyIndicator.showWhile(BusyIndicator.java:70)
	at org.eclipse.jface.viewers.AbstractTreeViewer.createChildren(AbstractTreeViewer.java:791)
	at org.eclipse.jface.viewers.TreeViewer.createChildren(TreeViewer.java:596)
	at org.eclipse.jface.viewers.AbstractTreeViewer.createChildren(AbstractTreeViewer.java:762)
	at org.eclipse.jface.viewers.AbstractTreeViewer.handleTreeExpand(AbstractTreeViewer.java:1489)
	at org.eclipse.jface.viewers.TreeViewer.handleTreeExpand(TreeViewer.java:882){code}





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