java.lang.NullPointerException at org.netbeans.api.java.source.TreeMaker.setExtends(TreeMaker.java:2865) at org.netbeans.modules.websvc.rest.RestUtils$1.run(RestUtils.java:484) at org.netbeans.modules.websvc.rest.RestUtils$1.run(RestUtils.java:474) at org.netbeans.api.java.source.JavaSource$1.run(JavaSource.java:649) at org.netbeans.api.java.source.JavaSource$1.run(JavaSource.java:639) at org.netbeans.api.java.source.JavaSource$MultiTask.run(JavaSource.java:493) at org.netbeans.modules.parsing.impl.TaskProcessor.callUserTask(TaskProcessor.java:598) at org.netbeans.modules.parsing.api.ParserManager$UserTaskAction.run(ParserManager.java:155) at org.netbeans.modules.parsing.api.ParserManager$UserTaskAction.run(ParserManager.java:139) at org.netbeans.modules.parsing.impl.TaskProcessor$2.call(TaskProcessor.java:206) at org.netbeans.modules.parsing.impl.TaskProcessor$2.call(TaskProcessor.java:203) at org.netbeans.modules.masterfs.filebasedfs.utils.FileChangedManager.priorityIO(FileChangedManager.java:176) at org.netbeans.modules.masterfs.providers.ProvidedExtensions.priorityIO(ProvidedExtensions.java:360) at org.netbeans.modules.parsing.impl.Utilities.runPriorityIO(Utilities.java:74) at org.netbeans.modules.parsing.impl.TaskProcessor.runUserTask(TaskProcessor.java:203) at org.netbeans.modules.parsing.api.ParserManager.parse(ParserManager.java:106) at org.netbeans.api.java.source.JavaSource.runUserActionTaskImpl(JavaSource.java:443) at org.netbeans.api.java.source.JavaSource.runUserActionTask(JavaSource.java:414) at org.netbeans.api.java.source.JavaSource.runModificationTask(JavaSource.java:660) at org.netbeans.modules.websvc.rest.RestUtils.createApplicationConfigClass(RestUtils.java:474) at org.netbeans.modules.websvc.rest.editor.RestConfigHint.implement(RestConfigHint.java:117) at org.netbeans.modules.editor.hints.HintsUI$1.run(HintsUI.java:837) at org.openide.util.RequestProcessor$Task.run(RequestProcessor.java:1423) at org.openide.util.RequestProcessor$Processor.run(RequestProcessor.java:2033)