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// 
// ========================================================================
// Copyright (c) 1995-2022 Mort Bay Consulting Pty Ltd and others.
// ------------------------------------------------------------------------
// All rights reserved. This program and the accompanying materials
// are made available under the terms of the Eclipse Public License v1.0
// and Apache License v2.0 which accompanies this distribution.
// 
// The Eclipse Public License is available at
// http://www.eclipse.org/legal/epl-v10.html
// 
// The Apache License v2.0 is available at
// http://www.opensource.org/licenses/apache2.0.php
// 
// You may elect to redistribute this code under either of these licenses.
// ========================================================================
// 
package org.eclipse.jetty.server;

import java.io.IOException;
import java.net.URLClassLoader;
import org.eclipse.jetty.util.component.Dumpable;
import org.eclipse.jetty.util.component.DumpableCollection;

// @deprecated The Eclipse Jetty and Apache Felix Http Jetty packages are no longer supported.
@Deprecated(since = "2021-05-27")
public class ClassLoaderDump implements Dumpable {

    final ClassLoader _loader;

    public ClassLoaderDump(ClassLoader loader) {
        _loader = loader;
    }

    @Override
    public String dump() {
        return Dumpable.dump(this);
    }

    @Override
    public void dump(Appendable out, String indent) throws IOException {
        if (_loader == null)
            out.append("No ClassLoader\n");
        else if (_loader instanceof Dumpable) {
            ((Dumpable) _loader).dump(out, indent);
        } else if (_loader instanceof URLClassLoader) {
            String loader = _loader.toString();
            DumpableCollection urls = DumpableCollection.fromArray("URLs", ((URLClassLoader) _loader).getURLs());
            ClassLoader parent = _loader.getParent();
            if (parent == null)
                Dumpable.dumpObjects(out, indent, loader, urls);
            else if (parent == Server.class.getClassLoader())
                Dumpable.dumpObjects(out, indent, loader, urls, parent.toString());
            else if (parent instanceof Dumpable)
                Dumpable.dumpObjects(out, indent, loader, urls, parent);
            else
                Dumpable.dumpObjects(out, indent, loader, urls, new ClassLoaderDump(parent));
        } else {
            String loader = _loader.toString();
            ClassLoader parent = _loader.getParent();
            if (parent == null)
                Dumpable.dumpObject(out, loader);
            if (parent == Server.class.getClassLoader())
                Dumpable.dumpObjects(out, indent, loader, parent.toString());
            else if (parent instanceof Dumpable)
                Dumpable.dumpObjects(out, indent, loader, parent);
            else if (parent != null)
                Dumpable.dumpObjects(out, indent, loader, new ClassLoaderDump(parent));
        }
    }
}




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