If there is a problem with JWAVE, a JWaveException class error is thrown. The most commonly encountered subclasses of JWaveException are:

JWaveConnectionException—Indicates a problem with the connection to the JWAVE server. The server may be down or unreachable. There may be a problem with the description of the connection method (in the JWaveConnectInfo.jar file).

JWaveServerException—Indicates a problem with the JWAVE server. You were able to connect, but it produced an error. PV‑WAVE may not have been able to start. You may have run out of JWAVE licences. The server may not have been able to run your intended wrapper function.

JWaveWrapperException—The JWAVE wrapper function was executed, but exited with an error. The exception text comes from the PV‑WAVE MESSAGE procedure (or !Err_String system variable).