hotspot/test/runtime/SharedArchiveFile/DumpSymbolAndStringTable.java

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 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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/*
 * @test
 * @bug 8059510
 * @summary Test jcmd VM.symboltable and VM.stringtable options
 * @library /test/lib
 * @modules java.base/jdk.internal.misc
 *          java.management
 * @run main/othervm -XX:+UnlockDiagnosticVMOptions DumpSymbolAndStringTable
 */
import jdk.test.lib.cds.CDSTestUtils;
import jdk.test.lib.process.ProcessTools;
import jdk.test.lib.process.OutputAnalyzer;
import jdk.test.lib.JDKToolFinder;

public class DumpSymbolAndStringTable {
    public static void main(String[] args) throws Exception {
        // Grab my own PID
        String pid = Long.toString(ProcessTools.getProcessId());

        ProcessBuilder pb = new ProcessBuilder();
        pb.command(new String[] {JDKToolFinder.getJDKTool("jcmd"), pid, "VM.symboltable", "-verbose"});
        OutputAnalyzer output = CDSTestUtils.executeAndLog(pb, "jcmd-symboltable");
        try {
            output.shouldContain("24 2: DumpSymbolAndStringTable\n");
        } catch (RuntimeException e) {
            output.shouldContain("Unknown diagnostic command");
        }

        pb.command(new String[] {JDKToolFinder.getJDKTool("jcmd"), pid, "VM.stringtable", "-verbose"});
        output = CDSTestUtils.executeAndLog(pb, "jcmd-stringtable");
        try {
            output.shouldContain("16: java.lang.String\n");
        } catch (RuntimeException e) {
            output.shouldContain("Unknown diagnostic command");
        }

        pb.command(new String[] {JDKToolFinder.getJDKTool("jcmd"), pid, "VM.systemdictionary"});
        output = CDSTestUtils.executeAndLog(pb, "jcmd-systemdictionary");
        try {
            output.shouldContain("System Dictionary for jdk/internal/loader/ClassLoaders$AppClassLoader statistics:");
            output.shouldContain("Number of buckets");
            output.shouldContain("Number of entries");
            output.shouldContain("Maximum bucket size");
        } catch (RuntimeException e) {
            output.shouldContain("Unknown diagnostic command");
        }

        pb.command(new String[] {JDKToolFinder.getJDKTool("jcmd"), pid, "VM.systemdictionary", "-verbose"});
        output = CDSTestUtils.executeAndLog(pb, "jcmd-systemdictionary");
        try {
            output.shouldContain("Dictionary for class loader 0x");
            output.shouldContain("^java.lang.String");
        } catch (RuntimeException e) {
            output.shouldContain("Unknown diagnostic command");
        }
    }
}