unwrap Throwable - Java java.lang

Java examples for java.lang:Throwable

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Description

unwrap Throwable

Demo Code


//package com.java2s;
import java.lang.reflect.InvocationTargetException;
import java.lang.reflect.UndeclaredThrowableException;

public class Main {
    public static Throwable unwrapThrowable(Throwable wrapped) {
        Throwable unwrapped = wrapped;
        while (true) {
            if (unwrapped instanceof InvocationTargetException) {
                unwrapped = ((InvocationTargetException) wrapped)
                        .getTargetException();
            } else if (unwrapped instanceof UndeclaredThrowableException) {
                unwrapped = ((UndeclaredThrowableException) wrapped)
                        .getUndeclaredThrowable();
            } else {
                return unwrapped;
            }//from ww  w .j  a  v a2 s  .c om
        }
    }
}

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