[logback-user] NullPointer in PropertySetter.computeContainmentTpye

[Ceki Gulcu]

Matthias,

The NPE thrown at line 234 is probably caused by the variable 'p' not
being set correctly on line 231.

225  int computeContainmentTpye(Method setterMethod) {
226    Class[] classArray = setterMethod.getParameterTypes();
227    if (classArray.length != 1) {
228      return X_NOT_FOUND;
229    } else {
230      Class clazz = classArray[0];
231      Package p = clazz.getPackage();
232     if (clazz.isPrimitive()) {
233        return X_AS_PROPERTY;
234      } else if ("java.lang".equals(p.getName())) {
...

Would it be possible for you to check out logback from our SVN repository and 
build it? You could then modify line 234 to read:

234      } else if (p != null && "java.lang".equals(p.getName())) {


Alternatively, we could also perform tests on our side using Orion.

Best regards,


mancereus wrote:
> The follwoing logback.xml works with tomcat, but not in orion application
> server:
> <?xml version="1.0" encoding="UTF-8" ?>
> <configuration>
>     <appender name="ROLLFILE"
> class="ch.qos.logback.core.rolling.RollingFileAppender">
> 	    <file>${LOG_HOME}xsvapp.log</file>
>         <rollingPolicy
> class="ch.qos.logback.core.rolling.TimeBasedRollingPolicy">
>             <param name="FileNamePattern"
> value="${LOG_HOME}xsvapp.log.%d{yyyy-MM-dd}" />
>         </rollingPolicy>
>         <layout class="ch.qos.logback.classic.PatternLayout">
>             <param name="Pattern" value="%d{HH:mm:ss} %-5level [%thread]
> %class{25} - %msg%n" />
>         </layout>
>     </appender>
>     
>     <root>
>         <level value="debug" />
>         <appender-ref ref="ROLLFILE" />
>     </root>
> </configuration>
> 
> I get the following NPE: 
> 04.05.07 11:00 ixmidixservweb: Error initializing servlet
> java.lang.ExceptionInInitializerError
>     at
> com.ixmid.ixservweb.web.session.SmnResolveProxies.<clinit>(SmnResolveProxies.java:117)
>     at java.lang.Class.forName0(Native Method)
>     at java.lang.Class.forName(Class.java:247)
>     at com.evermind._ay._lse(Unknown Source)
>     at com.evermind._ay._cbd(Unknown Source)
>     at com.evermind._ay._lze(Unknown Source)
>     at com.evermind._ay._lme(Unknown Source)
>     at com.evermind._ay.<init>(Unknown Source)
>     at com.evermind._am._rvb(Unknown Source)
>     at com.evermind._ex._rvb(Unknown Source)
>     at com.evermind._eu._kie(Unknown Source)
>     at com.evermind._eu._bi(Unknown Source)
>     at com.evermind._ex._bn(Unknown Source)
>     at com.evermind._ex._bi(Unknown Source)
>     at com.evermind.server.ApplicationServer._gse(Unknown Source)
>     at com.evermind.server.ApplicationServer._bi(Unknown Source)
>     at com.evermind._csb.run(Unknown Source)
>     at java.lang.Thread.run(Thread.java:619)
>     at com.evermind._bf.run(Unknown Source)
> Caused by: java.lang.NullPointerException
>     at
> ch.qos.logback.core.util.PropertySetter.computeContainmentTpye(PropertySetter.java:234)
>     at
> ch.qos.logback.core.util.PropertySetter.canContainComponent(PropertySetter.java:207)
>     at
> ch.qos.logback.core.joran.action.NestedComponentIA.isApplicable(NestedComponentIA.java:57)
>     at
> ch.qos.logback.core.joran.spi.Interpreter.lookupImplicitAction(Interpreter.java:214)
>     at
> ch.qos.logback.core.joran.spi.Interpreter.getApplicableActionList(Interpreter.java:233)
>     at
> ch.qos.logback.core.joran.spi.Interpreter.startElement(Interpreter.java:122)
>     at
> ch.qos.logback.core.joran.spi.Interpreter.startElement(Interpreter.java:110)
>     at ch.qos.logback.core.joran.spi.EventPlayer.play(EventPlayer.java:36)
>     at ch.qos.logback.core.joran.spi.Interpreter.play(Interpreter.java:336)
>     at
> ch.qos.logback.core.joran.GenericConfigurator.doConfigure(GenericConfigurator.java:96)
>     at
> ch.qos.logback.core.joran.GenericConfigurator.doConfigure(GenericConfigurator.java:74)
>     at
> ch.qos.logback.core.joran.GenericConfigurator.doConfigure(GenericConfigurator.java:38)
>     at com.ixmid.bas.BasLog4j.<clinit>(BasLog4j.java:68)
>     ... 19 more
> 
> any idea?
> (the "normal" FileAppender works with both tomcat and orion)

-- 
Ceki Gülcü
Logback: The reliable, generic, fast and flexible logging framework for Java.
http://logback.qos.ch