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Avoid potential NPE since detectTargetClassFromCCE may return null. #1995

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May 19, 2018
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Avoid potential NPE since detectTargetClassFromCCE may return null. #1995

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2 changes: 1 addition & 1 deletion src/main/java/spoon/reflect/visitor/chain/CtQueryImpl.java
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Original file line number Diff line number Diff line change
Expand Up @@ -585,7 +585,7 @@ private static int getIndexOfCallerInStackOfLambda() {
if ("getIndexOfCallerInStackOfLambda".equals(stack[i].getMethodName())) {
//check whether we can detect type of lambda input parameter from CCE
Class<?> detectectedClass = detectTargetClassFromCCE(e, obj);
if (CtType.class.equals(detectectedClass) == false) {
if (detectectedClass == null || CtType.class.equals(detectectedClass) == false) {
//we cannot detect type of lambda input parameter from ClassCastException on this JVM implementation
//mark it by negative index, so the query engine will fall back to eating of all CCEs and slow implementation
return -1;
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