java.lang.NullPointerException
	at org.netbeans.modules.javafx.editor.semantic.Utilities.findIdentifierSpanImpl(Utilities.java:231)
	at org.netbeans.modules.javafx.editor.semantic.Utilities.access$000(Utilities.java:77)
	at org.netbeans.modules.javafx.editor.semantic.Utilities$2.run(Utilities.java:298)
	at org.netbeans.editor.BaseDocument.render(BaseDocument.java:1366)
	at org.netbeans.modules.javafx.editor.semantic.Utilities.findIdentifierSpan(Utilities.java:296)
	at org.netbeans.modules.javafx.editor.semantic.Utilities.createHighlightImpl(Utilities.java:416)
	at org.netbeans.modules.javafx.editor.semantic.Utilities.access$300(Utilities.java:77)
	at org.netbeans.modules.javafx.editor.semantic.Utilities$5.run(Utilities.java:443)
	at org.netbeans.editor.BaseDocument.render(BaseDocument.java:1366)
	at org.netbeans.modules.javafx.editor.semantic.Utilities.getToken(Utilities.java:441)
	at org.netbeans.modules.javafx.editor.semantic.FindLocalUsagesQuery.handlePotentialVariable(FindLocalUsagesQuery.java:89)
	at org.netbeans.modules.javafx.editor.semantic.FindLocalUsagesQuery.visitVariable(FindLocalUsagesQuery.java:126)
	at org.netbeans.modules.javafx.editor.semantic.FindLocalUsagesQuery.visitVariable(FindLocalUsagesQuery.java:64)
	at com.sun.tools.javafx.tree.JFXVar.accept(JFXVar.java:140)
	at com.sun.javafx.api.tree.JavaFXTreePathScanner.scan(JavaFXTreePathScanner.java:63)
	at org.netbeans.api.javafx.source.support.CancellableTreePathScanner.scan(CancellableTreePathScanner.java:91)
	at com.sun.javafx.api.tree.JavaFXTreeScanner.scanAndReduce(JavaFXTreeScanner.java:84)
	at com.sun.javafx.api.tree.JavaFXTreeScanner.scan(JavaFXTreeScanner.java:94)
	at org.netbeans.api.javafx.source.support.CancellableTreePathScanner.scan(CancellableTreePathScanner.java:100)
	at com.sun.javafx.api.tree.JavaFXTreeScanner.scanAndReduce(JavaFXTreeScanner.java:111)
	at com.sun.javafx.api.tree.JavaFXTreeScanner.visitClassDeclaration(JavaFXTreeScanner.java:250)
	at org.netbeans.modules.javafx.editor.semantic.FindLocalUsagesQuery.visitClassDeclaration(FindLocalUsagesQuery.java:140)
	at org.netbeans.modules.javafx.editor.semantic.FindLocalUsagesQuery.visitClassDeclaration(FindLocalUsagesQuery.java:64)
	at com.sun.tools.javafx.tree.JFXClassDeclaration.accept(JFXClassDeclaration.java:121)
	at com.sun.javafx.api.tree.JavaFXTreePathScanner.scan(JavaFXTreePathScanner.java:63)
	at org.netbeans.api.javafx.source.support.CancellableTreePathScanner.scan(CancellableTreePathScanner.java:91)
	at com.sun.javafx.api.tree.JavaFXTreeScanner.scan(JavaFXTreeScanner.java:94)
	at org.netbeans.api.javafx.source.support.CancellableTreePathScanner.scan(CancellableTreePathScanner.java:100)
	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:129)
	at com.sun.javafx.api.tree.JavaFXTreePathScanner.scan(JavaFXTreePathScanner.java:63)
	at org.netbeans.api.javafx.source.support.CancellableTreePathScanner.scan(CancellableTreePathScanner.java:91)
	at org.netbeans.modules.javafx.editor.semantic.FindLocalUsagesQuery.findUsages(FindLocalUsagesQuery.java:81)
	at org.netbeans.modules.javafx.editor.semantic.MarkOccurrencesHighlighter.processImpl(MarkOccurrencesHighlighter.java:382)
	at org.netbeans.modules.javafx.editor.semantic.MarkOccurrencesHighlighter.run(MarkOccurrencesHighlighter.java:134)
	at org.netbeans.modules.javafx.editor.semantic.MarkOccurrencesHighlighter.run(MarkOccurrencesHighlighter.java:90)
	at org.netbeans.modules.javafx.source.scheduler.CompilationJob.run(CompilationJob.java:199)
	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:441)
	at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:303)
	at java.util.concurrent.FutureTask.run(FutureTask.java:138)
	at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)
[catch] at java.lang.Thread.run(Thread.java:619)