[LOGMGR-191] Amend NullPointerException in RegexFilter.isLoggable() #172
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Unit test and fix.
Note, if this fix is not applied, ran.get() in the testRegexFilter4 would return 'true' because Logger.publish() simply ignores the NullPointerException. (So it's slightly different from the scenario described in the JIRA). Anyway, RegexFilter.isLoggable() should explicitly return 'false', I think.
https://github.com/jboss-logging/jboss-logmanager/blob/master/src/main/java/org/jboss/logmanager/Logger.java#L846-L849