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/patterns/CastConversionMatch.java

@@ -0,0 +1,18 @@
+/*
+ * @test /nodynamiccopyright/
+ * @bug 8231827
+ * @summary Match which involves a cast conversion
+ * @compile/fail/ref=CastConversionMatch.out -XDrawDiagnostics CastConversionMatch.java
+ * @compile --enable-preview --source ${jdk.version} CastConversionMatch.java */
+
+public class CastConversionMatch {
+    public static void meth() {
+        Object o = 42;
+        if (o instanceof int s) {
+            System.out.println("Okay");
+        } else {
+            throw new AssertionError("broken");
+        }
+        System.out.println(">Test complete");
+    }
+}