this.targetClass = targetClass;
    }

    @Override
    public synchronized InstantiationRuntimeException initCause(final Throwable cause) {
        return (InstantiationRuntimeException) super.initCause(cause);
    }

    /**
     * Returns the target class.
     *
     * @return Target class
     */
    public Class<?> getTargetClass() {

            root = ((TransportException) ioe).getRootCause();
        }
        if (root instanceof InterruptedException) {
            ioe = new InterruptedIOException(root.getMessage());
            ioe.initCause(root);
        }
        return ioe;
    }

    /**
     * Closes this input stream and releases any system resources associated with the stream.
     *