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/ExceptionsInLambda.java

@@ -0,0 +1,38 @@
+/*
+ * @test /nodynamiccopyright/
+ * @bug 8015809
+ * @summary Producing individual errors for uncaught undeclared exceptions inside lambda expressions, instead of one error for whole lambda
+ * @compile/fail/ref=ExceptionsInLambda.out -XDrawDiagnostics ExceptionsInLambda.java
+ */
+
+import java.io.File;
+import java.io.FileInputStream;
+import java.io.FileReader;
+import java.io.InputStream;
+import java.io.Reader;
+
+public class ExceptionsInLambda {
+
+    public static void main(Runnable p, File f) {
+        main(() -> {
+            StringBuilder sb = new StringBuilder();
+
+            Reader in = new FileReader(f);
+            int r;
+
+            while ((r = in.read()) != (-1)) {
+                sb.append((char) r);
+            }
+        }, f);
+
+        doOpen(() -> new FileInputStream(f));
+    }
+
+    public static InputStream doOpen(Open open) {
+        return open.open();
+    }
+
+    public interface Open {
+        public InputStream open();
+    }
+}