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.
2026-03-26 17:11:57 -04:00 · 2026-03-26 17:11:57 -04:00 · 0a580b313d
commit 0a580b313d
70422 changed files with 17213626 additions and 0 deletions
--- a/test/jdk/sun/tools/jcmd/JcmdBase.java
+++ b/test/jdk/sun/tools/jcmd/JcmdBase.java
@ -0,0 +1,123 @@
+/*
+ * Copyright (c) 2013, 2025, 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.util.Arrays;
+
+import jdk.test.lib.Utils;
+import jdk.test.lib.process.OutputAnalyzer;
+import jdk.test.lib.process.ProcessTools;
+import jdk.test.lib.JDKToolLauncher;
+
+/**
+ * Helper class for starting jcmd process.
+ * <pre>
+ * - jcmd will send diagnostic requests to the current java process:
+ *      jcmd pid_to_current_process PerfCounter.print
+ * - jcmd will be run without sending request to any JVM
+ *      jcmd -h
+ * </pre>
+ */
+public final class JcmdBase {
+
+    private static ProcessBuilder processBuilder = new ProcessBuilder();
+
+    private JcmdBase() {
+        // Private constructor to prevent class instantiation
+    }
+
+    /**
+     * Sends the diagnostic command request to the current process
+     *
+     * @see #jcmd(boolean, String[], String[])
+     */
+    public final static OutputAnalyzer jcmd(String... jcmdArgs)
+            throws Exception {
+        return jcmd(true, null, jcmdArgs);
+    }
+
+    /**
+     * Sends the diagnostic command request to the current process.
+     * jcmd will be run with specified {@code vmArgs}.
+     *
+     * @see #jcmd(boolean, String[], String[])
+     */
+    public final static OutputAnalyzer jcmd(String[] vmArgs,
+            String[] jcmdArgs) throws Exception {
+        return jcmd(true, vmArgs, jcmdArgs);
+    }
+
+    /**
+     * Runs jcmd without sending request to any JVM
+     *
+     * @see #jcmd(boolean, String[], String[])
+     */
+    public final static OutputAnalyzer jcmdNoPid(String[] vmArgs,
+            String[] jcmdArgs) throws Exception {
+        return jcmd(false, vmArgs, jcmdArgs);
+    }
+
+    /**
+     * If {@code requestToCurrentProcess} is {@code true}
+     * sends a diagnostic command request to the current process.
+     * If {@code requestToCurrentProcess} is {@code false}
+     * runs jcmd without sending request to any JVM.
+     *
+     * @param requestToCurrentProcess
+     *            Defines if jcmd will send request to the current process
+     * @param vmArgs
+     *            jcmd will be run with VM arguments specified,
+     *            e.g. -XX:+UsePerfData
+     * @param jcmdArgs
+     *            jcmd will be run with option or command and its arguments
+     *            specified, e.g. VM.flags
+     * @return The output from {@link OutputAnalyzer} object
+     * @throws Exception
+     */
+    private static final OutputAnalyzer jcmd(boolean requestToCurrentProcess,
+            String[] vmArgs, String[] jcmdArgs) throws Exception {
+        JDKToolLauncher launcher = JDKToolLauncher.createUsingTestJDK("jcmd");
+        launcher.addVMArgs(Utils.getTestJavaOpts());
+        if (vmArgs != null) {
+            for (String vmArg : vmArgs) {
+                launcher.addVMArg(vmArg);
+            }
+        }
+        // Some command output may be lengthy, disable streaming output to avoid deadlocks
+        launcher.addVMArg("-Djdk.attach.allowStreamingOutput=false");
+        if (requestToCurrentProcess) {
+            launcher.addToolArg(Long.toString(ProcessTools.getProcessId()));
+        }
+        if (jcmdArgs != null) {
+            for (String toolArg : jcmdArgs) {
+                launcher.addToolArg(toolArg);
+            }
+        }
+        processBuilder.command(launcher.getCommand());
+        System.out.println(Arrays.toString(processBuilder.command().toArray()).replace(",", ""));
+        OutputAnalyzer output = ProcessTools.executeProcess(processBuilder);
+        System.out.println(output.getOutput());
+
+        return output;
+    }
+
+}