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/jdk/java/lang/StackWalker/StackStreamState.java

@@ -0,0 +1,74 @@
+/*
+ * Copyright (c) 2015, Oracle and/or its affiliates. All rights reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ */
+
+/*
+ * @test
+ * @bug 8020968
+ * @summary Basic test for Stream<StackFrame> state
+ * @run main StackStreamState
+ */
+
+import java.lang.StackWalker.StackFrame;
+import java.util.stream.Stream;
+
+public class StackStreamState {
+    public static void main(String... args) {
+        StackStreamState test = new StackStreamState();
+        test.testStatic();
+        test.testInstance();
+        test.testLocal();
+    }
+
+    private static Stream<StackFrame> staticStream;
+    private Stream<StackFrame> instanceStream;
+    private final StackWalker walker = StackWalker.getInstance();
+    void testStatic() {
+        walker.walk(s -> {
+            staticStream = s;
+            return null;
+        });
+        checkStreamState(staticStream);
+    }
+    void testInstance() {
+        walker.walk(s -> {
+            instanceStream = s;
+            return null;
+        });
+        checkStreamState(instanceStream);
+    }
+    void testLocal() {
+        Stream<StackFrame> stream = walker.walk(s -> {
+            return s;
+        });
+        checkStreamState(stream);
+    }
+    void checkStreamState(Stream<StackFrame> stream) {
+        try {
+            stream.count();
+            throw new RuntimeException("IllegalStateException not thrown");
+        } catch (IllegalStateException e) {
+            System.out.println("Got expected IllegalStateException: " + e.getMessage());
+            e.printStackTrace(System.out);
+        }
+    }
+}