JDK 11 jdk.hotspot.agent.jmod is the JMOD file for JDK 11 Hotspot Agent module.

JDK 11 Hotspot Agent module compiled class files are stored in \fyicenter\jdk-11.0.1\jmods\jdk.hotspot.agent.jmod.

JDK 11 Hotspot Agent module compiled class files are also linked and stored in the \fyicenter\jdk-11.0.1\lib\modules JImage file.

JDK 11 Hotspot Agent module source code files are stored in \fyicenter\jdk-11.0.1\lib\src.zip\jdk.hotspot.agent.

You can click and view the content of each source code file in the list below.

⏎ sun/jvm/hotspot/tools/jcore/ClassDump.java

/*
 * Copyright (c) 2002, 2017, Oracle and/or its affiliates. All rights reserved.
 * ORACLE PROPRIETARY/CONFIDENTIAL. Use is subject to license terms.
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package sun.jvm.hotspot.tools.jcore;

import java.io.*;
import java.lang.reflect.Constructor;
import java.util.jar.JarOutputStream;
import java.util.jar.JarEntry;
import java.util.jar.Manifest;
import sun.jvm.hotspot.classfile.*;
import sun.jvm.hotspot.memory.*;
import sun.jvm.hotspot.oops.*;
import sun.jvm.hotspot.debugger.*;
import sun.jvm.hotspot.runtime.*;
import sun.jvm.hotspot.tools.*;

public class ClassDump extends Tool {
    private ClassFilter classFilter;
    private String      outputDirectory;
    private JarOutputStream jarStream;
    private String      pkgList;

    public ClassDump() {
        super();
    }

    public ClassDump(JVMDebugger d, String pkgList) {
        super(d);
        this.pkgList = pkgList;
    }

    public void setClassFilter(ClassFilter cf) {
        classFilter = cf;
    }

    public void setOutputDirectory(String od) {
        outputDirectory = od;
        if (jarStream != null) {
            try {
                jarStream.close();
            } catch (IOException ioe) {
                ioe.printStackTrace();
            }
        }
        jarStream = null;
    }

    public void setJarOutput(String jarFileName) throws IOException {
        jarStream = new JarOutputStream(new FileOutputStream(jarFileName), new Manifest());
        outputDirectory = null;
    }

    public void run() {
        // Ready to go with the database...
        try {
            if (classFilter == null) {
                // If not already set, the name of the filter comes from a System property.
                // If we have a pkgList, pass it, otherwise let the filter read
                // its own System property for the list of classes.
                String filterClassName = System.getProperty("sun.jvm.hotspot.tools.jcore.filter",
                                                            "sun.jvm.hotspot.tools.jcore.PackageNameFilter");
                try {
                    Class filterClass = Class.forName(filterClassName);
                    if (pkgList == null) {
                        classFilter = (ClassFilter) filterClass.newInstance();
                    } else {
                        Constructor con = filterClass.getConstructor(String.class);
                        classFilter = (ClassFilter) con.newInstance(pkgList);
                    }
                } catch(Exception exp) {
                    System.err.println("Warning: Can not create class filter!");
                }
            }

            // outputDirectory and jarStream are alternatives: setting one closes the other.
            // If neither is set, use outputDirectory from the System property:
            if (outputDirectory == null && jarStream == null) {
                String dirName = System.getProperty("sun.jvm.hotspot.tools.jcore.outputDir", ".");
                setOutputDirectory(dirName);
            }

            // walk through the loaded classes
            ClassLoaderDataGraph cldg = VM.getVM().getClassLoaderDataGraph();
            cldg.classesDo(new ClassLoaderDataGraph.ClassVisitor() {
                    public void visit(Klass k) {
                        if (k instanceof InstanceKlass) {
                            try {
                                dumpKlass((InstanceKlass) k);
                            } catch (Exception e) {
                                System.out.println(k.getName().asString());
                                e.printStackTrace();
                            }
                        }
                    }
                });
        }
        catch (AddressException e) {
            System.err.println("Error accessing address 0x"
                               + Long.toHexString(e.getAddress()));
            e.printStackTrace();
        }
        if (jarStream != null) {
            try {
                jarStream.close();
            } catch (IOException ioe) {
                ioe.printStackTrace();
            }
            jarStream = null;
        }
    }

    public String getName() {
        return "jcore";
    }

    private void dumpKlass(InstanceKlass kls) {
        if (classFilter != null && ! classFilter.canInclude(kls) ) {
            return;
        }

        String klassName = kls.getName().asString();
        klassName = klassName.replace('/', File.separatorChar);
        try {
            OutputStream os = null;
            if (jarStream != null) {
                jarStream.putNextEntry(new JarEntry(klassName + ".class"));
                os = jarStream;
            } else {
                int index = klassName.lastIndexOf(File.separatorChar);
                File dir = null;
                if (index != -1) {
                    String dirName = klassName.substring(0, index);
                    dir = new File(outputDirectory,  dirName);
                } else {
                    dir = new File(outputDirectory);
                }

                dir.mkdirs();
                File f = new File(dir, klassName.substring(index + 1) + ".class");
                f.createNewFile();
                os = new BufferedOutputStream(new FileOutputStream(f));
            }
            try {
                ClassWriter cw = new ClassWriter(kls, os);
                cw.write();
            } finally {
                if (os != jarStream) {
                    os.close();
                }
            }
        } catch(IOException exp) {
            exp.printStackTrace();
        }
    }

    public static void main(String[] args) {

        ClassDump cd = new ClassDump();
        cd.execute(args);
    }
}

⏎ sun/jvm/hotspot/tools/jcore/ClassDump.java

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