SOfError by Lambda expr in Local Class
bitter_fox
bitterfoxc at gmail.com
Sat Nov 30 20:21:48 PST 2013
Hi,
When I compile the following code, StackOverflowError occur.
public class Main
{
interface F {void f();}
public static void main(String[] args)
{
class Local
{
public Local()
{
F f = () -> new Local();
}
}
}
}
It may be a cause that
c.s.t.javac.comp.LambdaToMethod.LambdaAnalyzerPreprocessor#capturelocalClassDefs
is called recursively.
void captureLocalClassDefs(Symbol csym, final
LambdaTranslationContext lambdaContext) {
JCClassDecl localCDef = localClassDefs.get(csym);
if (localCDef != null && localCDef.pos <
lambdaContext.tree.pos) {
BasicFreeVarCollector fvc = lower.new
BasicFreeVarCollector() {
@Override
void addFreeVars(ClassSymbol c) {
captureLocalClassDefs(c, lambdaContext);
}
// ...
};
fvc.scan(localCDef);
}
}
Following is a stack trace of the Error
java.lang.StackOverflowError
at com.sun.tools.javac.tree.JCTree$JCModifiers.accept(JCTree.java:2337)
at com.sun.tools.javac.tree.TreeScanner.scan(TreeScanner.java:49)
at
com.sun.tools.javac.tree.TreeScanner.visitMethodDef(TreeScanner.java:84)
at com.sun.tools.javac.tree.JCTree$JCMethodDecl.accept(JCTree.java:772)
at com.sun.tools.javac.tree.TreeScanner.scan(TreeScanner.java:49)
at com.sun.tools.javac.tree.TreeScanner.scan(TreeScanner.java:57)
at
com.sun.tools.javac.tree.TreeScanner.visitClassDef(TreeScanner.java:80)
at com.sun.tools.javac.tree.JCTree$JCClassDecl.accept(JCTree.java:687)
at com.sun.tools.javac.tree.TreeScanner.scan(TreeScanner.java:49)
at
com.sun.tools.javac.comp.LambdaToMethod$LambdaAnalyzerPreprocessor.captureLocalClassDefs(LambdaToMethod.java:1325)
at
com.sun.tools.javac.comp.LambdaToMethod$LambdaAnalyzerPreprocessor$1.addFreeVars(LambdaToMethod.java:1306)
at
com.sun.tools.javac.comp.Lower$BasicFreeVarCollector.visitNewClass(Lower.java:242)
at com.sun.tools.javac.tree.JCTree$JCNewClass.accept(JCTree.java:1510)
at com.sun.tools.javac.tree.TreeScanner.scan(TreeScanner.java:49)
at
com.sun.tools.javac.tree.TreeScanner.visitLambda(TreeScanner.java:221)
at com.sun.tools.javac.tree.JCTree$JCLambda.accept(JCTree.java:1618)
at com.sun.tools.javac.tree.TreeScanner.scan(TreeScanner.java:49)
at com.sun.tools.javac.tree.TreeScanner.visitVarDef(TreeScanner.java:98)
at
com.sun.tools.javac.tree.JCTree$JCVariableDecl.accept(JCTree.java:846)
at com.sun.tools.javac.tree.TreeScanner.scan(TreeScanner.java:49)
at com.sun.tools.javac.tree.TreeScanner.scan(TreeScanner.java:57)
at com.sun.tools.javac.tree.TreeScanner.visitBlock(TreeScanner.java:105)
at com.sun.tools.javac.tree.JCTree$JCBlock.accept(JCTree.java:903)
at com.sun.tools.javac.tree.TreeScanner.scan(TreeScanner.java:49)
at
com.sun.tools.javac.tree.TreeScanner.visitMethodDef(TreeScanner.java:91)
at com.sun.tools.javac.tree.JCTree$JCMethodDecl.accept(JCTree.java:772)
at com.sun.tools.javac.tree.TreeScanner.scan(TreeScanner.java:49)
at com.sun.tools.javac.tree.TreeScanner.scan(TreeScanner.java:57)
at
com.sun.tools.javac.tree.TreeScanner.visitClassDef(TreeScanner.java:80)
at com.sun.tools.javac.tree.JCTree$JCClassDecl.accept(JCTree.java:687)
at com.sun.tools.javac.tree.TreeScanner.scan(TreeScanner.java:49)
at
com.sun.tools.javac.comp.LambdaToMethod$LambdaAnalyzerPreprocessor.captureLocalClassDefs(LambdaToMethod.java:1325)
at
com.sun.tools.javac.comp.LambdaToMethod$LambdaAnalyzerPreprocessor$1.addFreeVars(LambdaToMethod.java:1306)
at
com.sun.tools.javac.comp.Lower$BasicFreeVarCollector.visitNewClass(Lower.java:242)
at com.sun.tools.javac.tree.JCTree$JCNewClass.accept(JCTree.java:1510)
at com.sun.tools.javac.tree.TreeScanner.scan(TreeScanner.java:49)
at
com.sun.tools.javac.tree.TreeScanner.visitLambda(TreeScanner.java:221)
at com.sun.tools.javac.tree.JCTree$JCLambda.accept(JCTree.java:1618)
at com.sun.tools.javac.tree.TreeScanner.scan(TreeScanner.java:49)
at com.sun.tools.javac.tree.TreeScanner.visitVarDef(TreeScanner.java:98)
at
com.sun.tools.javac.tree.JCTree$JCVariableDecl.accept(JCTree.java:846)
at com.sun.tools.javac.tree.TreeScanner.scan(TreeScanner.java:49)
at com.sun.tools.javac.tree.TreeScanner.scan(TreeScanner.java:57)
at com.sun.tools.javac.tree.TreeScanner.visitBlock(TreeScanner.java:105)
at com.sun.tools.javac.tree.JCTree$JCBlock.accept(JCTree.java:903)
at com.sun.tools.javac.tree.TreeScanner.scan(TreeScanner.java:49)
at
com.sun.tools.javac.tree.TreeScanner.visitMethodDef(TreeScanner.java:91)
at com.sun.tools.javac.tree.JCTree$JCMethodDecl.accept(JCTree.java:772)
at com.sun.tools.javac.tree.TreeScanner.scan(TreeScanner.java:49)
at com.sun.tools.javac.tree.TreeScanner.scan(TreeScanner.java:57)
at
com.sun.tools.javac.tree.TreeScanner.visitClassDef(TreeScanner.java:80)
at com.sun.tools.javac.tree.JCTree$JCClassDecl.accept(JCTree.java:687)
at com.sun.tools.javac.tree.TreeScanner.scan(TreeScanner.java:49)
at
com.sun.tools.javac.comp.LambdaToMethod$LambdaAnalyzerPreprocessor.captureLocalClassDefs(LambdaToMethod.java:1325)
at
com.sun.tools.javac.comp.LambdaToMethod$LambdaAnalyzerPreprocessor$1.addFreeVars(LambdaToMethod.java:1306)
at
com.sun.tools.javac.comp.Lower$BasicFreeVarCollector.visitNewClass(Lower.java:242)
at com.sun.tools.javac.tree.JCTree$JCNewClass.accept(JCTree.java:1510)
at com.sun.tools.javac.tree.TreeScanner.scan(TreeScanner.java:49)
at
com.sun.tools.javac.tree.TreeScanner.visitLambda(TreeScanner.java:221)
at com.sun.tools.javac.tree.JCTree$JCLambda.accept(JCTree.java:1618)
at com.sun.tools.javac.tree.TreeScanner.scan(TreeScanner.java:49)
at com.sun.tools.javac.tree.TreeScanner.visitVarDef(TreeScanner.java:98)
at
com.sun.tools.javac.tree.JCTree$JCVariableDecl.accept(JCTree.java:846)
at com.sun.tools.javac.tree.TreeScanner.scan(TreeScanner.java:49)
at com.sun.tools.javac.tree.TreeScanner.scan(TreeScanner.java:57)
at com.sun.tools.javac.tree.TreeScanner.visitBlock(TreeScanner.java:105)
at com.sun.tools.javac.tree.JCTree$JCBlock.accept(JCTree.java:903)
at com.sun.tools.javac.tree.TreeScanner.scan(TreeScanner.java:49)
at
com.sun.tools.javac.tree.TreeScanner.visitMethodDef(TreeScanner.java:91)
at com.sun.tools.javac.tree.JCTree$JCMethodDecl.accept(JCTree.java:772)
at com.sun.tools.javac.tree.TreeScanner.scan(TreeScanner.java:49)
at com.sun.tools.javac.tree.TreeScanner.scan(TreeScanner.java:57)
at
com.sun.tools.javac.tree.TreeScanner.visitClassDef(TreeScanner.java:80)
at com.sun.tools.javac.tree.JCTree$JCClassDecl.accept(JCTree.java:687)
at com.sun.tools.javac.tree.TreeScanner.scan(TreeScanner.java:49)
at
com.sun.tools.javac.comp.LambdaToMethod$LambdaAnalyzerPreprocessor.captureLocalClassDefs(LambdaToMethod.java:1325)
.
.
.
Regards,
bitter_fox
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