[jboss-jira] [JBoss JIRA] (WFLY-3101) CLI: hide stacktraces for exceptions w/o messages when logging errors

[Alexey Loubyansky (JIRA)]

Alexey Loubyansky created WFLY-3101:
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             Summary: CLI: hide stacktraces for exceptions w/o messages when logging errors
                 Key: WFLY-3101
                 URL: https://issues.jboss.org/browse/WFLY-3101
             Project: WildFly
          Issue Type: Task
      Security Level: Public (Everyone can see)
          Components: CLI
    Affects Versions: 8.0.0.Final
            Reporter: Alexey Loubyansky
            Assignee: Alexey Loubyansky
             Fix For: 8.0.1.Final


CommandContextImpl contains the following logic

    public void handleSafe(String line) {
        exitCode = 0;
        try {
            handle(line);
        } catch(Throwable t) {
            final StringBuilder buf = new StringBuilder();
            buf.append(t.getLocalizedMessage());
            Throwable t1 = t.getCause();
            while(t1 != null) {
                if(t1.getLocalizedMessage() != null) {
                    buf.append(": ").append(t1.getLocalizedMessage());
                } else {
                    t1.printStackTrace();
                }
                t1 = t1.getCause();
            }
            error(buf.toString());
        }
    }

When an exception does not contain any message, e.g. in some cases IllegalArgumentException, etc, the full stacktraces are logged that are useful for debugging but not nice from the user interface point of view. It was suggested to hide them.

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