public void setStreamError(GuacamoleException streamError) {
        this.streamError = streamError;
    }
Reports that this InterceptedStream did not complete successfully due to
the given GuacamoleException, which could not be thrown at the time due
to asynchronous handling of the stream contents.

@param streamError
    The exception which prevented the stream from completing
    successfully.
guacamole/src/main/java/org/apache/guacamole/tunnel/InterceptedStream.java