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Its an port to fix bugs in OSGi support. ... The Apache Commons Discovery 0.5 component is about discovering, or finding, implementations for pluggable interfaces.

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/*
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You under the Apache License, Version 2.0
 * (the "License"); you may not use this file except in compliance with
 * the License.  You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package org.apache.commons.discovery.jdk;

import java.io.InputStream;
import java.net.URL;

/**
 * JDK 1.1.x compatible?
 * There is no direct way to get the system class loader
 * in 1.1.x, but this should be a good work around...
 */
class PsuedoSystemClassLoader extends ClassLoader {

    /**
     * {@inheritDoc}
     */
    @Override
    protected Class loadClass(String className, @SuppressWarnings("unused") boolean resolve)
            throws ClassNotFoundException {
        return findSystemClass(className);
    }

    /**
     * {@inheritDoc}
     */
    @Override
    public URL getResource(String resName) {
        return getSystemResource(resName);
    }

    /**
     * {@inheritDoc}
     */
    @Override
    public InputStream getResourceAsStream(String resName) {
        return getSystemResourceAsStream(resName);
    }

}