undefect. CWE-407 — 63 sites patched across 27 ecosystems

Authors: russell@unturf.com · brackishbert@gmail.com · foxhop.net · TimeHexOn.com

Patches, unit tests, benchmarks, whitepaper, and outreach briefs.
Public domain — no copyright claimed. Use freely.

test/langtools/tools/javac/lambda/LambdaScope05.java

@@ -0,0 +1,31 @@
+/*
+ * @test /nodynamiccopyright/
+ * @bug 8015648
+ * @summary Duplicate variable in lambda causes javac crash
+ * @compile/fail/ref=LambdaScope05.out -XDrawDiagnostics LambdaScope05.java
+ */
+
+class LambdaScope05 {
+    interface VoidFun1 {
+        void m(int i);
+    }
+
+    static Runnable r1 = () -> { VoidFun1 p = p -> { }; };
+    Runnable r2 = () -> { VoidFun1 p = p -> { }; };
+
+    static {
+        Runnable r = () -> { VoidFun1 p = p -> { }; };
+    }
+
+    {
+        Runnable r = () -> { VoidFun1 p = p -> { }; };
+    }
+
+    static void m_static() {
+        Runnable r = () -> { VoidFun1 p = p -> { }; };
+    }
+
+    void m() {
+        Runnable r = () -> { VoidFun1 p = p -> { }; };
+    }
+}