JDK 11 jdk.hotspot.agent.jmod - Hotspot Agent Module

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.

✍: FYIcenter

sun/jvm/hotspot/classfile/ClassLoaderDataGraph.java

/*
 * Copyright (c) 2016, 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.classfile;

import java.io.PrintStream;
import java.util.*;
import sun.jvm.hotspot.debugger.*;
import sun.jvm.hotspot.classfile.*;
import sun.jvm.hotspot.runtime.*;
import sun.jvm.hotspot.oops.*;
import sun.jvm.hotspot.types.*;

public class ClassLoaderDataGraph {
  static {
    VM.registerVMInitializedObserver(new Observer() {
        public void update(Observable o, Object data) {
          initialize(VM.getVM().getTypeDataBase());
        }
      });
  }

  private static synchronized void initialize(TypeDataBase db) throws WrongTypeException {
    Type type = db.lookupType("ClassLoaderDataGraph");

    headField = type.getAddressField("_head");
  }

  private static AddressField headField;

  public ClassLoaderData getClassLoaderGraphHead() {
    return ClassLoaderData.instantiateWrapperFor(headField.getValue());
  }

  /** Lookup an already loaded class in any class loader. */
  public Klass find(String className) {
    Symbol sym = VM.getVM().getSymbolTable().probe(className);
    if (sym == null) return null;
    for (ClassLoaderData cld = getClassLoaderGraphHead(); cld != null; cld = cld.next()) {
        Klass k = cld.find(sym);
        if (k != null) {
            return k;
        }
    }
    return null;
  }

  /** Interface for iterating through all classes. */
  public static interface ClassVisitor {
    public void visit(Klass k);
  }

  /** Interface for iterating through all classes and their class
      loaders in dictionary */
  public static interface ClassAndLoaderVisitor {
    public void visit(Klass k, Oop loader);
  }

  /** Iterate over all klasses - including object, primitive
      array klasses */
  public void classesDo(ClassVisitor v) {
    for (ClassLoaderData cld = getClassLoaderGraphHead(); cld != null; cld = cld.next()) {
        cld.classesDo(v);
    }
  }

  /** Iterate over all klasses - including object, primitive
      array klasses, pass initiating loader. */
  public void allEntriesDo(ClassAndLoaderVisitor v) {
    for (ClassLoaderData cld = getClassLoaderGraphHead(); cld != null; cld = cld.next()) {
        cld.allEntriesDo(v);
    }
  }
}

sun/jvm/hotspot/classfile/ClassLoaderDataGraph.java

 

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2020-02-29, 70428👍, 0💬