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/**
 * Copyright (C) 2011 Ovea 
 *
 * Licensed 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 com.ovea.tajin.framework.jmx;

import java.io.PrintWriter;
import java.io.StringWriter;
import java.lang.reflect.InvocationTargetException;

/**
 * @author Mathieu Carbou ([email protected])
 */
public final class ExceptionUtils {

    private ExceptionUtils() {
    }

    public static Exception rethrowOrWrap(Throwable e) {
        if (e instanceof Error) throw (Error) e;
        if (e instanceof InvocationTargetException) e = ((InvocationTargetException) e).getTargetException();
        if (e instanceof RuntimeException) throw (RuntimeException) e;
        if (e instanceof Exception) return (Exception) e;
        Exception ee = new Exception(e.getMessage(), e);
        ee.setStackTrace(e.getStackTrace());
        return ee;
    }

    public static RuntimeException rethrow(Throwable e) {
        if (e instanceof InvocationTargetException)
            e = ((InvocationTargetException) e).getTargetException();
        if (e instanceof Error) throw (Error) e;
        if (e instanceof RuntimeException) throw (RuntimeException) e;
        RuntimeException ee = new RuntimeException(e.getMessage(), e);
        ee.setStackTrace(e.getStackTrace());
        throw ee;
    }

    public static String asString(Throwable t) {
        StringWriter sw = new StringWriter();
        PrintWriter pw = new PrintWriter(sw);
        t.printStackTrace(pw);
        pw.close();
        return sw.toString();
    }
}




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