java.lang.NullPointerException
        at org.netbeans.modules.javafx.source.indexing.JavaFXIndexer$1.visitVariable(JavaFXIndexer.java:170)
        at org.netbeans.modules.javafx.source.indexing.JavaFXIndexer$1.visitVariable(JavaFXIndexer.java:125)
        at com.sun.tools.javafx.tree.JFXVar.accept(JFXVar.java:145)
        at com.sun.javafx.api.tree.JavaFXTreePathScanner.scan(JavaFXTreePathScanner.java:63)
        at com.sun.javafx.api.tree.JavaFXTreeScanner.scanAndReduce(JavaFXTreeScanner.java:84)
        at com.sun.javafx.api.tree.JavaFXTreeScanner.scan(JavaFXTreeScanner.java:94)
        at com.sun.javafx.api.tree.JavaFXTreeScanner.scanAndReduce(JavaFXTreeScanner.java:111)
        at com.sun.javafx.api.tree.JavaFXTreeScanner.visitClassDeclaration(JavaFXTreeScanner.java:251)
        at org.netbeans.modules.javafx.source.indexing.JavaFXIndexer$1.visitClassDeclaration(JavaFXIndexer.java:157)
        at org.netbeans.modules.javafx.source.indexing.JavaFXIndexer$1.visitClassDeclaration(JavaFXIndexer.java:125)
        at com.sun.tools.javafx.tree.JFXClassDeclaration.accept(JFXClassDeclaration.java:149)
        at com.sun.javafx.api.tree.JavaFXTreePathScanner.scan(JavaFXTreePathScanner.java:63)
        at com.sun.javafx.api.tree.JavaFXTreeScanner.scanAndReduce(JavaFXTreeScanner.java:84)
        at com.sun.javafx.api.tree.JavaFXTreeScanner.scan(JavaFXTreeScanner.java:94)
        at com.sun.javafx.api.tree.JavaFXTreeScanner.scanAndReduce(JavaFXTreeScanner.java:111)
        at com.sun.javafx.api.tree.JavaFXTreeScanner.visitClassDeclaration(JavaFXTreeScanner.java:251)
        at org.netbeans.modules.javafx.source.indexing.JavaFXIndexer$1.visitClassDeclaration(JavaFXIndexer.java:157)
        at org.netbeans.modules.javafx.source.indexing.JavaFXIndexer$1.visitClassDeclaration(JavaFXIndexer.java:125)
        at com.sun.tools.javafx.tree.JFXClassDeclaration.accept(JFXClassDeclaration.java:149)
        at com.sun.javafx.api.tree.JavaFXTreePathScanner.scan(JavaFXTreePathScanner.java:63)
        at com.sun.javafx.api.tree.JavaFXTreeScanner.scan(JavaFXTreeScanner.java:94)
        at com.sun.javafx.api.tree.JavaFXTreeScanner.scanAndReduce(JavaFXTreeScanner.java:111)
        at com.sun.javafx.api.tree.JavaFXTreeScanner.visitCompilationUnit(JavaFXTreeScanner.java:122)
        at com.sun.tools.javafx.tree.JFXScript.accept(JFXScript.java:143)
        at com.sun.javafx.api.tree.JavaFXTreePathScanner.scan(JavaFXTreePathScanner.java:63)
        at org.netbeans.modules.javafx.source.indexing.JavaFXIndexer.index(JavaFXIndexer.java:273)
        at org.netbeans.modules.parsing.spi.indexing.Indexable$MyAccessor.index(Indexable.java:194)
        at org.netbeans.modules.parsing.impl.indexing.RepositoryUpdater$Work$2.run(RepositoryUpdater.java:1641)
        at org.netbeans.modules.parsing.api.ParserManager$UserTaskAction.run(ParserManager.java:129)
        at org.netbeans.modules.parsing.api.ParserManager$UserTaskAction.run(ParserManager.java:113)
        at org.netbeans.modules.parsing.impl.TaskProcessor.runUserTask(TaskProcessor.java:190)
        at org.netbeans.modules.parsing.api.ParserManager.parse(ParserManager.java:99)
        at org.netbeans.modules.parsing.impl.indexing.RepositoryUpdater$Work.indexEmbedding(RepositoryUpdater.java:1618)
        at org.netbeans.modules.parsing.impl.indexing.RepositoryUpdater$Work.index(RepositoryUpdater.java:1498)
        at org.netbeans.modules.parsing.impl.indexing.RepositoryUpdater$FileListWork.getDone(RepositoryUpdater.java:1835)
        at org.netbeans.modules.parsing.impl.indexing.RepositoryUpdater$Work.doTheWork(RepositoryUpdater.java:1694)
        at org.netbeans.modules.parsing.impl.indexing.RepositoryUpdater$Task.schedule(RepositoryUpdater.java:2825)
        at org.netbeans.modules.parsing.impl.indexing.RepositoryUpdater.scheduleWork(RepositoryUpdater.java:899)
        at org.netbeans.modules.parsing.impl.indexing.RepositoryUpdater.addIndexingJob(RepositoryUpdater.java:292)
        at org.netbeans.modules.parsing.api.indexing.IndexingManager.refreshIndexAndWait(IndexingManager.java:173)
        at org.netbeans.modules.parsing.api.indexing.IndexingManager.refreshIndexAndWait(IndexingManager.java:145)
        at org.netbeans.modules.parsing.spi.indexing.support.QuerySupport.query(QuerySupport.java:259)
        at org.netbeans.api.javafx.source.ClassIndex.getDeclaredTypes(ClassIndex.java:270)
        at org.netbeans.modules.javafx.editor.hints.ImplementAbstractTaskFactory$1.run(ImplementAbstractTaskFactory.java:186)
        at org.netbeans.modules.javafx.editor.hints.ImplementAbstractTaskFactory$1.run(ImplementAbstractTaskFactory.java:108)
        at org.netbeans.modules.javafx.source.parsing.JavaFXSourceCancelableTask.run(JavaFXSourceCancelableTask.java:103)
        at org.netbeans.modules.javafx.source.parsing.JavaFXSourceCancelableTask.run(JavaFXSourceCancelableTask.java:58)
        at org.netbeans.modules.parsing.impl.TaskProcessor$CompilationJob.run(TaskProcessor.java:654)
        at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:417)
        at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:269)
        at java.util.concurrent.FutureTask.run(FutureTask.java:123)
        at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:650)
        at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:675)
        at java.lang.Thread.run(Thread.java:595)