Details
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Bug
-
Resolution: Fixed
-
Critical
-
None
-
None
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None
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Operating System: Windows
Platform: PC
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17
Description
In case the evaluator could not be set for c.q.l.c.filter.EvaluatorFilter, it should NOT barf with a NPE.
LOGBACK: No context given for ch.qos.logback.core.util.PropertySetter@176c74b
| -INFO in ch.qos.logback.classic.joran.action.ConfigurationAction - Ignoring debug attribute. |
| -INFO in ch.qos.logback.core.joran.action.AppenderAction - About to instantiate appender of type [ch.qos.logback.core.ConsoleAppender] |
| -INFO in ch.qos.logback.core.joran.action.AppenderAction - Naming appender as [STDOUT] |
| -ERROR in ch.qos.logback.core.filter.EvaluatorFilter@e5855a - No evaluator set for filter myFilter |
| -INFO in ch.qos.logback.core.joran.action.AppenderAction - Popping appender named [STDOUT] from the object stack |
| -INFO in ch.qos.logback.classic.joran.action.LevelAction - root level set to DEBUG |
| -INFO in ch.qos.logback.core.joran.action.AppenderRefAction - Attaching appender named [STDOUT to Logger[root] Exception in thread "main" java.lang.NullPointerException at ch.qos.logback.core.filter.EvaluatorFilter.decide(EvaluatorFilter.java:34) at ch.qos.logback.core.spi.FilterAttachableImpl.getFilterChainDecision(FilterAttachableImpl.java:68) at ch.qos.logback.core.AppenderBase.getFilterChainDecision(AppenderBase.java:115) at ch.qos.logback.core.AppenderBase.doAppend(AppenderBase.java:65) at ch.qos.logback.core.spi.AppenderAttachableImpl.appendLoopOnAppenders(AppenderAttachableImpl.java:51) at ch.qos.logback.classic.Logger.appendLoopOnAppenders(Logger.java:286) at ch.qos.logback.classic.Logger.callAppenders(Logger.java:270) at ch.qos.logback.classic.Logger.filterAndLog(Logger.java:375) at ch.qos.logback.classic.Logger.debug(Logger.java:398) at chapter5.GoMDC.main(GoMDC.java:28) |
Config file:
<configuration>
<appender name="STDOUT"
class="ch.qos.logback.core.ConsoleAppender">
<layout class="ch.qos.logback.classic.PatternLayout">
<param name="Pattern"
value="%-4relative [%thread] %-5level %X
- %msg%n" />
</layout>
<filter class="ch.qos.logback.core.filter.EvaluatorFilter">
<Name>myFilter</Name>
<Evaluator class="ch.qos.logback.classic.boolex.JaninoEventEvaluator">
<Expression>"k".equals(mdc.get("k"))</Expression>
</Evaluator>
</filter>
</appender>
public class EvaluatorFilter
<root>
<level value="debug" />
<appender-ref ref="STDOUT" />
</root>
</configuration>