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https://issues.apache.org/jira/browse/LOG4J2-623?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13997697#comment-13997697
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Mikael Ståldal commented on LOG4J2-623:
---------------------------------------
Now I get this problem instead, probably not related to JSONLayout:
java.lang.NoClassDefFoundError: Could not initialize class
org.apache.logging.log4j.web.Log4jWebInitializerImpl
at java.lang.Class.forName0(Native Method) ~[?:1.7.0_51]
at java.lang.Class.forName(Class.java:270) ~[?:1.7.0_51]
at
org.apache.logging.log4j.core.util.Loader.initializeClass(Loader.java:272)
~[log4j-core-2.0-rc2-SNAPSHOT.jar:2.0-rc2-SNAPSHOT]
at
org.apache.logging.log4j.core.impl.ThrowableProxy.loadClass(ThrowableProxy.java:483)
~[log4j-core-2.0-rc2-SNAPSHOT.jar:2.0-rc2-SNAPSHOT]
at
org.apache.logging.log4j.core.impl.ThrowableProxy.toExtendedStackTrace(ThrowableProxy.java:595)
[log4j-core-2.0-rc2-SNAPSHOT.jar:2.0-rc2-SNAPSHOT]
at
org.apache.logging.log4j.core.impl.ThrowableProxy.<init>(ThrowableProxy.java:145)
[log4j-core-2.0-rc2-SNAPSHOT.jar:2.0-rc2-SNAPSHOT]
at
org.apache.logging.log4j.core.impl.Log4jLogEvent.<init>(Log4jLogEvent.java:121)
[log4j-core-2.0-rc2-SNAPSHOT.jar:2.0-rc2-SNAPSHOT]
at
org.apache.logging.log4j.core.impl.Log4jLogEvent.<init>(Log4jLogEvent.java:97)
[log4j-core-2.0-rc2-SNAPSHOT.jar:2.0-rc2-SNAPSHOT]
at
org.apache.logging.log4j.core.impl.DefaultLogEventFactory.createEvent(DefaultLogEventFactory.java:49)
[log4j-core-2.0-rc2-SNAPSHOT.jar:2.0-rc2-SNAPSHOT]
at
org.apache.logging.log4j.core.config.LoggerConfig.log(LoggerConfig.java:367)
[log4j-core-2.0-rc2-SNAPSHOT.jar:2.0-rc2-SNAPSHOT]
at org.apache.logging.log4j.core.Logger.logMessage(Logger.java:103)
[log4j-core-2.0-rc2-SNAPSHOT.jar:2.0-rc2-SNAPSHOT]
at org.apache.logging.slf4j.Log4jLogger.log(Log4jLogger.java:374)
[log4j-slf4j-impl-2.0-rc2-SNAPSHOT.jar:2.0-rc2-SNAPSHOT]
I have declared dependency to log4j-web. I think that the class
org.apache.logging.log4j.web.Log4jWebInitializerImplis found, but fails to
initialize for some reason.
> Better structure of Thread Context Map in JSONLayout
> ----------------------------------------------------
>
> Key: LOG4J2-623
> URL: https://issues.apache.org/jira/browse/LOG4J2-623
> Project: Log4j 2
> Issue Type: Improvement
> Components: Layouts
> Affects Versions: 2.0-rc1
> Reporter: Mikael Ståldal
> Assignee: Ralph Goers
> Priority: Minor
> Fix For: 2.0-rc2
>
>
> Currently, the Thread Context Map looks like this in JSONLayout:
> {code:JavaScript|title=Current}
> "Properties":[
> {
> "name":"UserName",
> "value":"admin"
> },
> {
> "name":"OrgName",
> "value":"test"
> }
> ]
> {code}
> This does not properly make use of the JSON data format. Since the Thread
> Context Map is a map, it should be represented as a JSON object. And why not
> name it "mdc" rather than the quite vauge "Properties"?
> {code:JavaScript|title=Suggested}
> "mdc": {
> "UserName":"admin",
> "OrgName":"test"
> }
> {code}
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