java.lang.IllegalStateException: Too many org.netbeans.modules.maven.apisupport.ImportantFilesNodeFactory$ImportantFilesNode (1) in shared RequestProcessor; create your own
   at org.openide.util.RequestProcessor$Task.schedule(RequestProcessor.java:1464)
   at org.netbeans.modules.maven.apisupport.AnnotatedNode.annotationChanged(AnnotatedNode.java:162)
   at sun.reflect.GeneratedMethodAccessor64.invoke(GeneratedMethodAccessor64.java:0)
   at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
   at java.lang.reflect.Method.invoke(Method.java:497)
   at org.openide.util.WeakListenerImpl$ProxyListener.invoke(WeakListenerImpl.java:461)
   at com.sun.proxy.$Proxy11.annotationChanged(.java:0)
   at org.openide.filesystems.FileSystem$FileStatusDispatcher.dispatch(FileSystem.java:1058)
   at org.openide.filesystems.FileSystem$EventDispatcher.run(FileSystem.java:1031)
   at org.openide.filesystems.EventControl.dispatchEvent(EventControl.java:84)
   at org.openide.filesystems.FileSystem.dispatchEvent(FileSystem.java:676)
   at org.openide.filesystems.FileSystem.fireFileStatusChanged(FileSystem.java:746)
   at org.netbeans.modules.masterfs.filebasedfs.FileBasedFileSystem.access$000(FileBasedFileSystem.java:78)
   at org.netbeans.modules.masterfs.filebasedfs.FileBasedFileSystem$StatusImpl.annotationChanged(FileBasedFileSystem.java:320)
   at org.netbeans.modules.masterfs.providers.AnnotationProvider.fireFileStatusChanged(AnnotationProvider.java:173)
   at org.netbeans.modules.versioning.masterfs.VersioningAnnotationProvider.deliverStatusEvent(VersioningAnnotationProvider.java:99)
   at org.netbeans.modules.versioning.masterfs.FilesystemInterceptor.annotationChanged(FilesystemInterceptor.java:333)
   at org.netbeans.modules.versioning.core.VersioningManager.deliverStatusEvent(VersioningManager.java:143)
   at org.netbeans.modules.versioning.core.VersioningAnnotationProvider$2.fireFileStatusEvents(VersioningAnnotationProvider.java:449)
   at org.netbeans.modules.versioning.core.VersioningAnnotationProvider$2.run(VersioningAnnotationProvider.java:430)
   at org.openide.util.RequestProcessor$Task.run(RequestProcessor.java:1423)
   at org.openide.util.RequestProcessor$Processor.run(RequestProcessor.java:2033)