I installed e(fx)clipse plugin to Eclipse Neon, after I restart the IDE, i'm getting a prompt "Java Initialize Error". And also some of the eclipse features are not working.
In the Log file, it shows
!ENTRY org.eclipse.core.jobs 4 2 2016-07-18 10:21:44.162 !MESSAGE An internal error occurred during: "Initializing Java Tooling". !STACK 0 java.lang.NoSuchMethodError: org.eclipse.core.runtime.SubMonitor.done(Lorg/eclipse/core/runtime/IProgressMonitor;)V at org.eclipse.jdt.internal.core.search.PatternSearchJob.execute(PatternSearchJob.java:71) at org.eclipse.jdt.internal.core.search.processing.JobManager.performConcurrentJob(JobManager.java:265) at org.eclipse.jdt.internal.core.search.BasicSearchEngine.searchAllTypeNames(BasicSearchEngine.java:1816) at org.eclipse.jdt.core.search.SearchEngine.searchAllTypeNames(SearchEngine.java:1030) at org.eclipse.jdt.core.JavaCore.initializeAfterLoad(JavaCore.java:4270) at org.eclipse.jdt.internal.ui.InitializeAfterLoadJob$RealJob.run(InitializeAfterLoadJob.java:36) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55)