import org.codelibs.core.message.MessageFormatter;

/**
 * Utility class for handling {@link ClassLoader}.
 *
 * @author koichik
 */
public abstract class ClassLoaderUtil {

    /**
     * Do not instantiate.
     */
    protected ClassLoaderUtil() {
    }

    /**
     * Returns the class loader.
     * <p>
     * The class loader is searched in the following order:
     * </p>
     * <ol>

        assertThat(ClassLoaderUtil.isAncestor(cl3, cl2), is(true));
        assertThat(ClassLoaderUtil.isAncestor(cl3, cl1), is(true));
        assertThat(ClassLoaderUtil.isAncestor(cl2, cl1), is(true));

        assertThat(ClassLoaderUtil.isAncestor(cl1, cl2), is(not(true)));
        assertThat(ClassLoaderUtil.isAncestor(cl1, cl3), is(not(true)));
    }

import java.util.concurrent.ConcurrentMap;
import java.util.jar.JarFile;
import java.util.zip.ZipEntry;
import java.util.zip.ZipInputStream;

import org.codelibs.core.jar.JarFileUtil;
import org.codelibs.core.lang.ClassLoaderUtil;
import org.codelibs.core.lang.ClassUtil;
import org.codelibs.core.lang.StringUtil;
import org.codelibs.core.log.Logger;
import org.codelibs.core.net.URLUtil;
import org.codelibs.core.zip.ZipFileUtil;