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/tools/launcher/LauncherExceptionTest.java

@@ -0,0 +1,103 @@
+/*
+ * Copyright (c) 2024, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2024, Red Hat Inc.
+ * 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.File;
+import java.util.ArrayList;
+
+/**
+ * @test
+ * @bug 8329581
+ * @summary verifies launcher prints stack trace when main class can't be loaded
+ * @compile LauncherExceptionTest.java
+ * @run main LauncherExceptionTest
+ */
+
+public class LauncherExceptionTest extends TestHelper {
+
+    @Test
+    void testLauncherReportsException() throws Exception {
+        if (!isEnglishLocale()) {
+            return;
+        }
+
+        File cwd = new File(".");
+        File srcDir = new File(cwd, "src");
+        if (srcDir.exists()) {
+            recursiveDelete(srcDir);
+        }
+        srcDir.mkdirs();
+
+        // Generate class Test.java
+        ArrayList<String> scratchPad = new ArrayList<>();
+        scratchPad.add("public class Test {");
+        scratchPad.add("    static class SomeDependency {}");
+        scratchPad.add("    private static final SomeDependency X = new SomeDependency();");
+        scratchPad.add("    public static void main(String... args) {");
+        scratchPad.add("        System.out.println(\"X=\" + X);");
+        scratchPad.add("    }");
+        scratchPad.add("}");
+        createFile(new File(srcDir, "Test.java"), scratchPad);
+
+
+        // Compile and execute Test should succeed
+        TestResult trCompilation = doExec(javacCmd,
+                "-d", "classes",
+                new File(srcDir, "Test.java").toString());
+        if (!trCompilation.isOK()) {
+            System.err.println(trCompilation);
+            throw new RuntimeException("Error: compiling");
+        }
+
+        TestResult trExecution = doExec(javaCmd, "-cp", "classes", "Test");
+        if (!trExecution.isOK()) {
+            System.err.println(trExecution);
+            throw new RuntimeException("Error: executing");
+        }
+
+        // Delete dependency
+        File dependency = new File("classes/Test$SomeDependency.class");
+        recursiveDelete(dependency);
+
+        // Executing Test should report exception description
+        trExecution = doExec(javaCmd, "-cp", "classes", "Test");
+        trExecution.contains("Exception in thread \"main\" java.lang.NoClassDefFoundError: " +
+                "Test$SomeDependency");
+        trExecution.contains("Caused by: java.lang.ClassNotFoundException: " +
+                "Test$SomeDependency");
+        if (!trExecution.testStatus)
+            System.err.println(trExecution);
+    }
+
+    public static void main(String[] args) throws Exception {
+        LauncherExceptionTest a = new LauncherExceptionTest();
+        a.run(args);
+        if (testExitValue > 0) {
+            System.out.println("Total of " + testExitValue + " failed");
+            throw new RuntimeException("Test failed");
+        } else {
+            System.out.println("Test passed");
+        }
+    }
+}