java.lang.reflect.UndeclaredThrowableExceptionjiang

实例包含由调用处理程序抛出的经过检查的未声明异常,可以使用 getUndeclaredThrowable() 方法获取

String msg = null;
if (e instanceof UndeclaredThrowableException){
    Throwable targetEx = ((UndeclaredThrowableException) e).getUndeclaredThrowable();
    if (targetEx != null){
        msg = targetEx.getMessage();
    }
} else {
    msg = e.getMessage();
}