gwt-eclipse-plugin: Eclipse Oxygen.1 Plugin Error due wrong interface

Eclipse has change an interface.

I have updated from old GWT Plugin to new one but error still occurs

They have added a additional boolean: https://github.com/eclipse/eclipse.jdt.core/blob/master/org.eclipse.jdt.core/model/org/eclipse/jdt/internal/core/JavaProject.java

Change comes with: https://github.com/eclipse/eclipse.jdt.core/commit/54049bd43ee6ccfbd3f1b67192d2ed3baee764e3#diff-c1da82ed737689b0aeddf1126c08e061


java.lang.NoSuchMethodError: org.eclipse.jdt.internal.core.JavaProject.computePackageFragmentRoots([Lorg/eclipse/jdt/core/IClasspathEntry;ZLjava/util/Map;)[Lorg/eclipse/jdt/core/IPackageFragmentRoot;
	at com.google.gdt.eclipse.core.ClasspathUtilities.findRawClasspathEntryFor(ClasspathUtilities.java:163)
	at com.google.gwt.eclipse.core.runtime.GwtSdk$ProjectBoundSdk.findGwtDevClasspathEntry(GwtSdk.java:361)
	at com.google.gwt.eclipse.core.runtime.GwtSdk$ProjectBoundSdk.computeInstallPath(GwtSdk.java:266)
	at com.google.gwt.eclipse.core.runtime.GwtSdk$ProjectBoundSdk.getInstallationPath(GwtSdk.java:189)
	at com.google.gwt.eclipse.core.runtime.GwtSdk.findSdkFor(GwtSdk.java:411)
	at com.google.gwt.eclipse.core.launch.processors.DGwtDevJarArgumentProcessor.maybeGetDevJarPath(DGwtDevJarArgumentProcessor.java:76)
	at com.google.gwt.eclipse.core.launch.processors.DGwtDevJarArgumentProcessor.update(DGwtDevJarArgumentProcessor.java:123)
	at com.google.gdt.eclipse.suite.launch.processors.LaunchConfigurationUpdater.update(LaunchConfigurationUpdater.java:141)
	at com.google.gdt.eclipse.suite.launch.processors.LaunchConfigAffectingChangesListener.syncUpdate(LaunchConfigAffectingChangesListener.java:93)
	at com.google.gdt.eclipse.suite.launch.processors.LaunchConfigAffectingChangesListener.access$2(LaunchConfigAffectingChangesListener.java:89)
	at com.google.gdt.eclipse.suite.launch.processors.LaunchConfigAffectingChangesListener$1.runInWorkspace(LaunchConfigAffectingChangesListener.java:78)
	at org.eclipse.core.internal.resources.InternalWorkspaceJob.run(InternalWorkspaceJob.java:39)
	at org.eclipse.core.internal.jobs.Worker.run(Worker.java:56)```

About this issue

Original URL
State: closed
Created 7 years ago
Reactions: 1
Comments: 32 (17 by maintainers)

Most upvoted comments

Fix getting pushed to staging.

branflake2267 on Oct 13, 2017

I can confirm, clean Oxygen 4.7.2 with initially empty workspace/configuration + gwt 2.8.2 + stable GWT Eclipse Plugin 3.0.0.201710131939 + imported gwt projects work without problems.

zecritter on Feb 13, 2018

It seems that error Errors running builder ‘GWT Project Validator’ in Chancafek comment https://github.com/gwt-plugins/gwt-eclipse-plugin/issues/365#issuecomment-347854308 is actually in google GWT Eclipse Plugin code (com.google.gwt.eclipse…). I had this problem too, when installing gwt-eclipse-plugin, it seems google GWT Eclipse Plugin is removed from eclipse, but it builders still work in gwt projects…

zecritter on Feb 7, 2018

Xtext faces the same problem, they fixed this by inlining the old method: https://github.com/eclipse/xtext-eclipse/commit/dcdfcd087ef7efa6b5281d824e9961a47966e322 The old method signature will come back in Oxygen.2 (https://github.com/eclipse/eclipse.jdt.core/commit/93cabc2b1a6103f5b8fc5e200336888a24a95ba5, https://bugs.eclipse.org/bugs/show_bug.cgi?id=525462)

stefaneggerstorfer on Oct 12, 2017