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/lambdaExpression/AccessNonStatic_neg.java

@@ -0,0 +1,26 @@
+/*
+ * @test /nodynamiccopyright/
+ * @bug 8003280
+ * @summary Add lambda tests
+ *   Test accessing non-static variable from lambda expressions in static context
+ * @compile/fail/ref=AccessNonStatic_neg.out -XDrawDiagnostics AccessNonStatic_neg.java
+ */
+
+public class AccessNonStatic_neg {
+
+    private int n = 0;
+
+    static {
+        ((Runnable) ()-> {
+            System.out.println(this);
+            System.out.println(n);
+        }).run();
+    }
+
+    public static void test() {
+        ((Runnable) ()-> {
+            Object o = this;
+            n++;
+        }).run();
+    }
+}