java.lang.NullPointerException
	at com.strobel.decompiler.languages.java.ast.transforms.SimplifyArithmeticExpressionsTransform.visitAssignmentExpression(SimplifyArithmeticExpressionsTransform.java:178)
	at com.strobel.decompiler.languages.java.ast.transforms.SimplifyArithmeticExpressionsTransform.visitAssignmentExpression(SimplifyArithmeticExpressionsTransform.java:26)
	at com.strobel.decompiler.languages.java.ast.AssignmentExpression.acceptVisitor(AssignmentExpression.java:88)
	at com.strobel.decompiler.languages.java.ast.DepthFirstAstVisitor.visitChildren(DepthFirstAstVisitor.java:33)
	at com.strobel.decompiler.languages.java.ast.DepthFirstAstVisitor.visitExpressionStatement(DepthFirstAstVisitor.java:101)
	at com.strobel.decompiler.languages.java.ast.ExpressionStatement.acceptVisitor(ExpressionStatement.java:47)
	at com.strobel.decompiler.languages.java.ast.DepthFirstAstVisitor.visitChildren(DepthFirstAstVisitor.java:33)
	at com.strobel.decompiler.languages.java.ast.DepthFirstAstVisitor.visitBlockStatement(DepthFirstAstVisitor.java:96)
	at com.strobel.decompiler.languages.java.ast.BlockStatement.acceptVisitor(BlockStatement.java:72)
	at com.strobel.decompiler.languages.java.ast.DepthFirstAstVisitor.visitChildren(DepthFirstAstVisitor.java:33)
	at com.strobel.decompiler.languages.java.ast.DepthFirstAstVisitor.visitMethodDeclaration(DepthFirstAstVisitor.java:206)
	at com.strobel.decompiler.languages.java.ast.ContextTrackingVisitor.visitMethodDeclaration(ContextTrackingVisitor.java:64)
	at com.strobel.decompiler.languages.java.ast.ContextTrackingVisitor.visitMethodDeclaration(ContextTrackingVisitor.java:28)
	at com.strobel.decompiler.languages.java.ast.MethodDeclaration.acceptVisitor(MethodDeclaration.java:85)
	at com.strobel.decompiler.languages.java.ast.DepthFirstAstVisitor.visitChildren(DepthFirstAstVisitor.java:33)
	at com.strobel.decompiler.languages.java.ast.DepthFirstAstVisitor.visitTypeDeclaration(DepthFirstAstVisitor.java:236)
	at com.strobel.decompiler.languages.java.ast.ContextTrackingVisitor.visitTypeDeclaration(ContextTrackingVisitor.java:52)
	at com.strobel.decompiler.languages.java.ast.ContextTrackingVisitor.visitTypeDeclaration(ContextTrackingVisitor.java:28)
	at com.strobel.decompiler.languages.java.ast.TypeDeclaration.acceptVisitor(TypeDeclaration.java:90)
	at com.strobel.decompiler.languages.java.ast.DepthFirstAstVisitor.visitChildren(DepthFirstAstVisitor.java:33)
	at com.strobel.decompiler.languages.java.ast.DepthFirstAstVisitor.visitCompilationUnit(DepthFirstAstVisitor.java:241)
	at com.strobel.decompiler.languages.java.ast.CompilationUnit.acceptVisitor(CompilationUnit.java:75)
	at com.strobel.decompiler.languages.java.ast.ContextTrackingVisitor.run(ContextTrackingVisitor.java:84)
	at com.strobel.decompiler.languages.java.ast.transforms.TransformationPipeline.runTransformationsUntil(TransformationPipeline.java:91)
	at com.strobel.decompiler.languages.java.ast.AstBuilder.runTransformations(AstBuilder.java:99)
	at cuchaz.enigma.Deobfuscator.getSourceTree(Deobfuscator.java:225)
	at cuchaz.enigma.gui.GuiController$3.run(GuiController.java:325)