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James Perkins updated LOGMGR-191:
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Summary: Amend NullPointerException in regex filters (was: Amend NullPointerException
in RegexFilter.isLoggable())
Amend NullPointerException in regex filters
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Key: LOGMGR-191
URL:
https://issues.jboss.org/browse/LOGMGR-191
Project: JBoss Log Manager
Issue Type: Bug
Components: core
Affects Versions: 2.1.0.Alpha5
Reporter: Toshiya Kobayashi
Assignee: Toshiya Kobayashi
Labels: support
When log message is null, RegexFilter.isLoggable() throws NullPointerException.
https://github.com/jboss-logging/jboss-logmanager/blob/master/src/main/ja...
It often results in unexpected outcomes. For example, assuming you have a filter-spec
with "not(match(xxx))" to suppress some messages in your logger configuration:
{code:xml}
<subsystem xmlns="urn:jboss:domain:logging:3.0">
<console-handler name="CONSOLE">
<level name="INFO"/>
<filter-spec
value="not(match("SOME_MESSAGE"))"/>
<formatter>
<named-formatter name="COLOR-PATTERN"/>
</formatter>
</console-handler>
{code}
and an application has a code like this:
{code:java}
try {
...
} catch (Exception e) {
logger.error(e.getMessage(), e);
}
{code}
"e.getMessage()" could be null. But you want to log the stacktrace 'e'
anyway.
In this case, NullPointerException is thrown from RegexFilter and reaches to LoggerNode
and disappears. ConsoleHandler cannot publish the log at all.
https://github.com/jboss-logging/jboss-logmanager/blob/master/src/main/ja...
I think 'null' message should simply return 'false' in
RegexFilter.isLoggable().