Created attachment 701010 [details]
Test mvn project with a deployable RAR

Description of problem:
ManagedConnectionFactory#setLogWriter() passes a PrintWriter object for logging use of the connector.  It is supposed to output log messages to stdout but none of the messages are observed.


Steps to Reproduce:
1. Extract the attachment 'logwritertest.zip' which is a maven project with a deployable RAR file.
2. Deploy './target/logwritertest-0.1.rar'.
3. While the deployment, EAP sets a PrintWriter wrapping System.out via ManagedConnectionFactory#setLogWriter().  And the test connection factory should output message "*** Logging via PrintWriter ***" through it, as the code written like this.

./src/main/java/com/redhat/gss/logwritertest/AcmeManagedConnectionFactory.java
--
   public void setLogWriter(PrintWriter out) throws ResourceException
   {
      out.println("*** Logging via PrintWriter ***");
      ...
   }
--


Actual results:
The message doesn't observed.
--
17:36:15,668 INFO  [org.jboss.as.osgi] (MSC service thread 1-1) JBAS011907: Register module: Module "deployment.logwritertest-0.1.rar:main" from Service Module Loader
17:36:15,695 INFO  [org.jboss.as.connector.deployment] (MSC service thread 1-4) JBAS010406: Registered connection factory java:/eis/AcmeConnectionFactory
1
--


Expected results:
The message has been observed.
--
17:39:01,726 INFO  [org.jboss.as.osgi] (MSC service thread 1-3) JBAS011907: Register module: Module "deployment.logwritertest-0.1.rar:main" from Service Module Loader
17:39:01,750 INFO  [stdout] (MSC service thread 1-1) *** Logging via PrintWriter ***
17:39:01,751 INFO  [org.jboss.as.connector.deployment] (MSC service thread 1-1) JBAS010406: Registered connection factory java:/eis/AcmeConnectionFactory
--


Additional info:
AS7-6587 [1] is going to revise the JCA logging system.  And there is a proposed fix of AbstractResourceAdapterDeploymentService.java, which enables auto-flushing of the PrintWriter.  I confirmed with a custom build with this change fixes the problem.

[1] https://issues.jboss.org/browse/AS7-6587