org.eclipse.swt.SWTException: Failed to execute runnable (java.lang.NullPointerException)
at org.eclipse.swt.SWT.error(SWT.java:3563)
at org.eclipse.swt.SWT.error(SWT.java:3481)
at org.eclipse.swt.widgets.Synchronizer.runAsyncMessages(Synchronizer.java:126)
at org.eclipse.swt.widgets.Display.runAsyncMessages(Display.java:3659)
at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3296)
at org.eclipse.ui.internal.Workbench.runEventLoop(Workbench.java:2389)
at org.eclipse.ui.internal.Workbench.runUI(Workbench.java:2353)
at org.eclipse.ui.internal.Workbench.access$4(Workbench.java:2219)
at org.eclipse.ui.internal.Workbench$4.run(Workbench.java:466)
at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:289)
at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:461)
at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:149)
at edu.uiuc.ncsa.cyberintegrator.rcp.Cyberintegrator.start(Unknown Source)
at org.eclipse.equinox.internal.app.EclipseAppHandle.run(EclipseAppHandle.java:169)
at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.runApplication(EclipseAppLauncher.java:106)
at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.start(EclipseAppLauncher.java:76)
at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:363)
at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:176)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
at java.lang.reflect.Method.invoke(Unknown Source)
at org.eclipse.equinox.launcher.Main.invokeFramework(Main.java:508)
at org.eclipse.equinox.launcher.Main.basicRun(Main.java:447)
at org.eclipse.equinox.launcher.Main.run(Main.java:1173)
Caused by: java.lang.NullPointerException
at edu.uiuc.ncsa.cyberintegrator.ui.views.StepCreatorView$InputContentProvider.getElements(Unknown Source)
at org.eclipse.jface.viewers.StructuredViewer.getRawChildren(StructuredViewer.java:937)
at org.eclipse.jface.viewers.StructuredViewer.getFilteredChildren(StructuredViewer.java:871)
at org.eclipse.jface.viewers.StructuredViewer.getSortedChildren(StructuredViewer.java:994)
at org.eclipse.jface.viewers.AbstractListViewer.internalRefresh(AbstractListViewer.java:372)
at org.eclipse.jface.viewers.StructuredViewer.internalRefresh(StructuredViewer.java:1226)
at org.eclipse.jface.viewers.StructuredViewer$8.run(StructuredViewer.java:1460)
at org.eclipse.jface.viewers.StructuredViewer.preservingSelection(StructuredViewer.java:1368)
at org.eclipse.jface.viewers.StructuredViewer.preservingSelection(StructuredViewer.java:1330)
at org.eclipse.jface.viewers.StructuredViewer.refresh(StructuredViewer.java:1458)
at org.eclipse.jface.viewers.StructuredViewer.refresh(StructuredViewer.java:1415)
at edu.uiuc.ncsa.cyberintegrator.ui.views.StepCreatorView$8.run(Unknown Source)
at org.eclipse.swt.widgets.RunnableLock.run(RunnableLock.java:35)
at org.eclipse.swt.widgets.Synchronizer.runAsyncMessages(Synchronizer.java:123)
... 22 more