BIRTjava.lang.NoClassDefFoundError: org/eclipse/jetty/util/Decorator

Question

I installed 64-bit Oxygen.2 and installed BIRT Framework through 'Update Software'.
When trying to render reports (to any format) from BIRT's GUI, I get the following error:

java.lang.NoClassDefFoundError: org/eclipse/jetty/util/Decorator
at org.eclipse.birt.report.viewer.utilities.ViewerWebApp.start(ViewerWebApp.java:40)
at org.eclipse.birt.report.viewer.utilities.AppServerWrapper.startJettyServer(AppServerWrapper.java:256)
at org.eclipse.birt.report.viewer.utilities.AppServerWrapper.start(AppServerWrapper.java:155)
at org.eclipse.birt.report.viewer.utilities.WebappAccessor.start(WebappAccessor.java:72)
at org.eclipse.birt.report.viewer.utilities.WebViewer.startWebApp(WebViewer.java:827)
at org.eclipse.birt.report.viewer.utilities.WebViewer.display(WebViewer.java:1078)
at org.eclipse.birt.report.viewer.utilities.WebViewer.display(WebViewer.java:1073)
at org.eclipse.birt.report.designer.ui.actions.PreviewSupport.preview(PreviewSupport.java:402)
at org.eclipse.birt.report.designer.ui.actions.PreviewSupport$3.widgetSelected(PreviewSupport.java:245)
at org.eclipse.swt.widgets.TypedListener.handleEvent(TypedListener.java:249)
at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:86)
at org.eclipse.swt.widgets.Display.sendEvent(Display.java:4428)
at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1079)
at org.eclipse.swt.widgets.Display.runDeferredEvents(Display.java:4238)
at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3817)
at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine$5.run(PartRenderingEngine.java:1150)
at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:336)
at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.run(PartRenderingEngine.java:1039)
at org.eclipse.e4.ui.internal.workbench.E4Workbench.createAndRunUI(E4Workbench.java:153)
at org.eclipse.ui.internal.Workbench.lambda$3(Workbench.java:680)
at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:336)
at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:594)
at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:148)
at org.eclipse.ui.internal.ide.application.IDEApplication.start(IDEApplication.java:151)
at org.eclipse.equinox.internal.app.EclipseAppHandle.run(EclipseAppHandle.java:196)
at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.runApplication(EclipseAppLauncher.java:134)
at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.start(EclipseAppLauncher.java:104)
at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:388)
at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:243)
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:653)
at org.eclipse.equinox.launcher.Main.basicRun(Main.java:590)
at org.eclipse.equinox.launcher.Main.run(Main.java:1499)<br>
Caused by: java.lang.ClassNotFoundException: org.eclipse.jetty.util.Decorator cannot be found by org.eclipse.jetty.servlet_9.4.5.v20170502**
at org.eclipse.osgi.internal.loader.BundleLoader.findClassInternal(BundleLoader.java:484)
at org.eclipse.osgi.internal.loader.BundleLoader.findClass(BundleLoader.java:395)
at org.eclipse.osgi.internal.loader.BundleLoader.findClass(BundleLoader.java:387)
at org.eclipse.osgi.internal.loader.ModuleClassLoader.loadClass(ModuleClassLoader.java:150)
at java.lang.ClassLoader.loadClass(Unknown Source)
... 36 more

Anyone knows how to solve this problem?

Answer 1

Updated 06/23/19 - Just added instructions for Eclipse Photon

https://bugs.eclipse.org/bugs/show_bug.cgi?id=517662#c29

Update 04/04/18 - there is a workaround reported in first bug bellow that solves the problem. Copy the plugin files attached to the bug to the "dropins" folder of the Eclipse install and restart. It worked for me.

https://bugs.eclipse.org/bugs/show_bug.cgi?id=517662

Answer 2

It appears that the integration with the installer is not yet ready.

Currently (BIRT 4.8.0), the easiest solution is to download the all-in-one option from https://download.eclipse.org/birt/downloads/

At the time of writing, this distribution includes Eclipse Photon and has all the plugins needed to render reports.

If you must use Oxygen, there are links to older releases at https://download.eclipse.org/birt/downloads/build_list.php. I only have tested 4.8.0 so I don't know which of the older releases are working fine.