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/EffectivelyFinalTest.java

@@ -0,0 +1,55 @@
+/*
+ * @test /nodynamiccopyright/
+ * @bug 7175538 8003280
+ * @summary Add lambda tests
+ *  Integrate effectively final check with DA/DU analysis
+ * @compile/fail/ref=EffectivelyFinalTest01.out -XDrawDiagnostics EffectivelyFinalTest.java
+ *
+ */
+class EffectivelyFinalTest {
+
+    void m1(int x) {
+        int y = 1;
+        new Object() { { System.out.println(x+y); } }; //ok - both x and y are EF
+    }
+
+    void m2(int x) {
+        int y;
+        y = 1;
+        new Object() { { System.out.println(x+y); } }; //ok - both x and y are EF
+    }
+
+    void m3(int x, boolean cond) {
+        int y;
+        if (cond) y = 1;
+        new Object() { { System.out.println(x+y); } }; //error - y not DA
+    }
+
+    void m4(int x, boolean cond) {
+        int y;
+        if (cond) y = 1;
+        else y = 2;
+        new Object() { { System.out.println(x+y); } }; //ok - both x and y are EF
+    }
+
+    void m5(int x, boolean cond) {
+        int y;
+        if (cond) y = 1;
+        y = 2;
+        new Object() { { System.out.println(x+y); } }; //error - y not EF
+    }
+
+    void m6(int x) {
+        new Object() { { System.out.println(x+1); } }; //error - x not EF
+        x++; // Illegal: x is not effectively final.
+    }
+
+    void m7(int x) {
+        new Object() { { System.out.println(x=1); } }; //error - x not EF
+    }
+
+    void m8() {
+        int y;
+        new Object() { { System.out.println(y=1); } }; //error - y not EF
+    }
+}