An error occurred during parsing of 'C:\Users\Gili\Documents\raffle\backend\src\main\java\org\bitbucket\cowwoc\raffle\backend\resource\RaffleToBuyersResource.java'. Please report a bug against java/source and attach dump file 'C:\Users\Gili\AppData\Roaming\NetBeans\dev\var\log\RaffleToBuyersResource_1.dump'. Caused: java.lang.NullPointerException at com.sun.tools.javac.code.Types.isConvertible(Types.java:297) at com.sun.tools.javac.comp.Check.assertConvertible(Check.java:926) at com.sun.tools.javac.comp.Check.checkMethod(Check.java:880) at com.sun.tools.javac.comp.Attr.checkMethod(Attr.java:3968) at com.sun.tools.javac.comp.Attr.checkIdInternal(Attr.java:3740) at com.sun.tools.javac.comp.Attr.checkMethodIdInternal(Attr.java:3651) at com.sun.tools.javac.comp.Attr.checkMethodId(Attr.java:3624) at com.sun.tools.javac.comp.Attr.checkId(Attr.java:3612) at com.sun.tools.javac.comp.Attr.visitSelect(Attr.java:3495) at com.sun.tools.javac.tree.JCTree$JCFieldAccess.accept(JCTree.java:1897) at com.sun.tools.javac.comp.Attr.attribTree(Attr.java:602) at com.sun.tools.javac.comp.Attr.visitApply(Attr.java:1866) at com.sun.tools.javac.tree.JCTree$JCMethodInvocation.accept(JCTree.java:1465) at com.sun.tools.javac.comp.Attr.attribTree(Attr.java:602) at com.sun.tools.javac.comp.Attr.visitSelect(Attr.java:3387) at com.sun.tools.javac.tree.JCTree$JCFieldAccess.accept(JCTree.java:1897) at com.sun.tools.javac.comp.Attr.attribTree(Attr.java:602) at com.sun.tools.javac.comp.Attr.visitApply(Attr.java:1866) at com.sun.tools.javac.tree.JCTree$JCMethodInvocation.accept(JCTree.java:1465) at com.sun.tools.javac.comp.Attr.attribTree(Attr.java:602) at com.sun.tools.javac.comp.Attr.attribExpr(Attr.java:644) at com.sun.tools.javac.comp.Attr.visitAssign(Attr.java:3078) at com.sun.tools.javac.tree.JCTree$JCAssign.accept(JCTree.java:1686) at com.sun.tools.javac.comp.Attr.attribTree(Attr.java:602) at com.sun.tools.javac.comp.Attr.attribExpr(Attr.java:651) at com.sun.tools.javac.comp.Attr.visitExec(Attr.java:1631) at com.sun.tools.javac.tree.JCTree$JCExpressionStatement.accept(JCTree.java:1296) at com.sun.tools.javac.comp.Attr.attribTree(Attr.java:602) at com.sun.tools.javac.comp.Attr.attribStat(Attr.java:671) at com.sun.tools.javac.comp.Attr.visitIf(Attr.java:1622) at com.sun.tools.javac.tree.JCTree$JCIf.accept(JCTree.java:1269) at com.sun.tools.javac.comp.Attr.attribTree(Attr.java:602) at com.sun.tools.javac.comp.Attr.attribStat(Attr.java:671) at com.sun.tools.javac.comp.Attr.attribStats(Attr.java:687) at com.sun.tools.javac.comp.Attr.visitBlock(Attr.java:1152) at org.netbeans.lib.nbjavac.services.NBAttr.visitBlock(NBAttr.java:82) at com.sun.tools.javac.tree.JCTree$JCBlock.accept(JCTree.java:909) at com.sun.tools.javac.comp.Attr.attribTree(Attr.java:602) at com.sun.tools.javac.comp.Attr.attribStat(Attr.java:671) at com.sun.tools.javac.comp.Attr.visitMethodDef(Attr.java:1040) at org.netbeans.lib.nbjavac.services.NBAttr.visitMethodDef(NBAttr.java:76) at com.sun.tools.javac.tree.JCTree$JCMethodDecl.accept(JCTree.java:778) at com.sun.tools.javac.comp.Attr.attribTree(Attr.java:602) at com.sun.tools.javac.comp.Attr.attribStat(Attr.java:671) at com.sun.tools.javac.comp.Attr.attribClassBody(Attr.java:4481) at com.sun.tools.javac.comp.Attr.attribClass(Attr.java:4383) at com.sun.tools.javac.comp.Attr.attribClass(Attr.java:4316) at com.sun.tools.javac.comp.Attr.attrib(Attr.java:4291) at com.sun.tools.javac.main.JavaCompiler.attribute(JavaCompiler.java:1314) at com.sun.tools.javac.main.JavaCompiler.attribute(JavaCompiler.java:1287) at com.sun.tools.javac.api.JavacTaskImpl.analyze(JavacTaskImpl.java:469) at com.sun.tools.javac.api.JavacTaskImpl.analyze(JavacTaskImpl.java:448) at org.netbeans.modules.java.source.parsing.JavacParser.moveToPhase(JavacParser.java:664) at org.netbeans.modules.java.source.parsing.CompilationInfoImpl.toPhase(CompilationInfoImpl.java:388) at org.netbeans.api.java.source.CompilationController.toPhase(CompilationController.java:109) at org.netbeans.api.java.source.WorkingCopy.toPhase(WorkingCopy.java:196) at org.netbeans.modules.refactoring.java.spi.RefactoringVisitor.setWorkingCopy(RefactoringVisitor.java:131) at org.netbeans.modules.refactoring.java.plugins.MoveTransformer.setWorkingCopy(MoveTransformer.java:94) at org.netbeans.modules.refactoring.java.spi.JavaRefactoringPlugin$TransformTask.run(JavaRefactoringPlugin.java:385) at org.netbeans.modules.refactoring.java.spi.JavaRefactoringPlugin$TransformTask.run(JavaRefactoringPlugin.java:368) 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:593) at org.netbeans.modules.parsing.api.ParserManager$MultiUserTaskAction.run(ParserManager.java:191) at org.netbeans.modules.parsing.api.ParserManager$MultiUserTaskAction.run(ParserManager.java:163) at org.netbeans.modules.parsing.impl.TaskProcessor$2.call(TaskProcessor.java:206) at org.netbeans.modules.parsing.impl.TaskProcessor$2.call(TaskProcessor.java:203) at org.netbeans.modules.masterfs.filebasedfs.utils.FileChangedManager.priorityIO(FileChangedManager.java:176) at org.netbeans.modules.masterfs.providers.ProvidedExtensions.priorityIO(ProvidedExtensions.java:360) at org.netbeans.modules.parsing.impl.Utilities.runPriorityIO(Utilities.java:74) at org.netbeans.modules.parsing.impl.TaskProcessor.runUserTask(TaskProcessor.java:203) at org.netbeans.modules.parsing.api.ParserManager.parse(ParserManager.java:108) at org.netbeans.api.java.source.JavaSource.runUserActionTaskImpl(JavaSource.java:443) at org.netbeans.api.java.source.JavaSource.runUserActionTask(JavaSource.java:414) at org.netbeans.api.java.source.JavaSource.runModificationTask(JavaSource.java:660) at org.netbeans.modules.refactoring.java.spi.JavaRefactoringPlugin.processFiles(JavaRefactoringPlugin.java:273) at org.netbeans.modules.refactoring.java.spi.JavaRefactoringPlugin.processFiles(JavaRefactoringPlugin.java:255) at org.netbeans.modules.refactoring.java.spi.JavaRefactoringPlugin.createAndAddElements(JavaRefactoringPlugin.java:286) at org.netbeans.modules.refactoring.java.spi.JavaRefactoringPlugin.createAndAddElements(JavaRefactoringPlugin.java:302) at org.netbeans.modules.refactoring.java.plugins.MoveFileRefactoringPlugin.prepare(MoveFileRefactoringPlugin.java:594) at org.netbeans.modules.refactoring.api.AbstractRefactoring.pluginsPrepare2(AbstractRefactoring.java:437) at org.netbeans.modules.refactoring.api.AbstractRefactoring.pluginsPrepare(AbstractRefactoring.java:421) at org.netbeans.modules.refactoring.api.AbstractRefactoring.prepare(AbstractRefactoring.java:232) at org.netbeans.modules.refactoring.spi.impl.ParametersPanel$Prepare.run(ParametersPanel.java:1026) at org.openide.util.RequestProcessor$Task.run(RequestProcessor.java:1423) at org.openide.util.RequestProcessor$Processor.run(RequestProcessor.java:2033)