Issue Summary

Adding class with special characters or space breaks the viewlog4j view and prompts an exception. This includes leading and trailing spaces

This is reproducible on Data Center: Yes

Steps to Reproduce

1. Navigate to » General configuration » Logging and Profiling.
2. Add following class to the Class/Package text box.
3. Click Add entry.

Expected Results

Incorrect class is added should be handled gracefully and allow admin to correct.

Actual Results

Exception prompts:

configurelog4j.vm

</td>
                    <td>
                    <a href="$action.nodeUri("deleteLogEntry.action?toDeleteName=$entry.clazz&#url_xsrfToken()")">Remove</a>
                    </td>
                    </tr>

Workaround

Restart Confluence to revert temporary logging.