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/ClassLoader/ResourcesStreamTest.java

@@ -0,0 +1,90 @@
+/*
+ * Copyright (c) 2016, 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.
+ */
+
+import java.io.IOException;
+import java.io.UncheckedIOException;
+import java.net.URL;
+import java.util.Collections;
+import java.util.Enumeration;
+import java.util.List;
+import java.util.stream.Collectors;
+import java.util.stream.Stream;
+
+/*
+ * @test
+ * @bug 8161230
+ * @summary Test java.lang.ClassLoader.resources() method
+ *
+ * @build ResourcesStreamTest
+ * @run main ResourcesStreamTest
+ */
+public class ResourcesStreamTest {
+
+    public static void main(String[] args) throws Exception {
+        testSuccess();
+        testFailure();
+    }
+
+    public static void testSuccess() throws Exception {
+        // failing part first
+        try {
+            ClassLoader cl = new FailingClassLoader();
+            // should create the stream pipe
+            Stream<URL> stream = cl.resources("the name");
+            // expect function to throw an exception when calling the method
+            stream.forEach(System.out::println);
+            throw new Exception("expected UncheckedIOException not thrown");
+        } catch (UncheckedIOException uio) {
+            String causeMessage = uio.getCause().getMessage();
+            if (!"the name".equals(causeMessage))
+                throw new Exception("unexpected cause message: " + causeMessage);
+        }
+    }
+
+    public static void testFailure() throws Exception {
+        ClassLoader cl = new SuccessClassLoader();
+        long count = cl.resources("the name").count();
+        if (count != 1)
+            throw new Exception("expected resource is null or empty");
+
+        cl.resources("the name")
+          .filter(url -> "file:/somefile".equals(url.toExternalForm()))
+          .findFirst()
+          .orElseThrow(() -> new Exception("correct URL not found"));
+    }
+
+    public static class SuccessClassLoader extends ClassLoader {
+        @Override
+        public Enumeration<URL> getResources(String name) throws IOException {
+            URL url = new URL("file:/somefile");
+            return Collections.enumeration(Collections.singleton(url));
+        }
+    }
+
+    public static class FailingClassLoader extends ClassLoader {
+        @Override
+        public Enumeration<URL> getResources(String name) throws IOException {
+            throw new IOException(name);
+        }
+    }
+}