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/T8201281/NullInErrorMessageTest.java

@@ -0,0 +1,30 @@
+/*
+ * @test  /nodynamiccopyright/
+ * @bug 8201281
+ * @summary Truncated error message with Incompatible : null
+ * @compile/fail/ref=NullInErrorMessageTest.out -XDrawDiagnostics NullInErrorMessageTest.java
+ */
+
+import java.util.concurrent.CompletionStage;
+import java.util.function.Function;
+import java.util.function.Supplier;
+
+public class NullInErrorMessageTest {
+    private CompletionStage<String> test() {
+        return null;
+    }
+
+    private CompletionStage<Integer> test2() {
+        return null;
+    }
+
+    public static <T> Function<Throwable, T> test3() {
+        return null;
+    }
+
+    private Supplier<CompletionStage<Integer>> createSupplier() {
+        return () -> test().thenCompose(value -> {
+            return () -> test2().exceptionally(test3());
+        });
+    }
+}