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https://issues.apache.org/jira/browse/LOG4J2-448?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13868937#comment-13868937
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Remko Popma commented on LOG4J2-448:
------------------------------------
X86core, I agree with your analysis that the {{chars}} array may be modified,
in which case the {{length}} should be adjusted by {{lengthChange}} like you
pointed out.
However, this code is used a lot and I hesitate to make changes without
reproducing the issue first...
Could you provide the configuration file you used when the error above
occurred, or another test case?
> StringIndexOutOfBounds when using property substitution
> ---------------------------------------------------------
>
> Key: LOG4J2-448
> URL: https://issues.apache.org/jira/browse/LOG4J2-448
> Project: Log4j 2
> Issue Type: Bug
> Components: API
> Affects Versions: 2.0-beta9
> Environment: All
> Reporter: X86core
>
> @org.apache.logging.log4j.core.lookup.StrSubstitutor# substitute(LogEvent ,
> StringBuilder , int , int , List<String> ) @ Line 816-817 @new String(chars,
> offset, length). The String should be new String(chars,
> offset, length + lengthChange) this is because of the character
> deletion that might have happened for '$".
> See trace below:
> Exception in thread "main" java.lang.ExceptionInInitializerError
> Caused by: java.lang.StringIndexOutOfBoundsException: String index out of
> range: 63
> at java.lang.String.<init>(String.java:201)
> at
> org.apache.logging.log4j.core.lookup.StrSubstitutor.substitute(StrSubstitutor.java:848)
> at
> org.apache.logging.log4j.core.lookup.StrSubstitutor.substitute(StrSubstitutor.java:761)
> at
> org.apache.logging.log4j.core.lookup.StrSubstitutor.substitute(StrSubstitutor.java:737)
> at
> org.apache.logging.log4j.core.lookup.StrSubstitutor.replace(StrSubstitutor.java:306)
> at
> org.apache.logging.log4j.core.config.BaseConfiguration.createPluginObject(BaseConfiguration.java:720)
> at
> org.apache.logging.log4j.core.config.BaseConfiguration.createConfiguration(BaseConfiguration.java:595)
> at
> org.apache.logging.log4j.core.config.BaseConfiguration.createConfiguration(BaseConfiguration.java:587)
> at
> org.apache.logging.log4j.core.config.BaseConfiguration.doConfigure(BaseConfiguration.java:244)
> at
> org.apache.logging.log4j.core.config.BaseConfiguration.start(BaseConfiguration.java:142)
> at
> org.apache.logging.log4j.core.LoggerContext.setConfiguration(LoggerContext.java:339)
> at
> org.apache.logging.log4j.core.LoggerContext.reconfigure(LoggerContext.java:378)
> at
> org.apache.logging.log4j.core.LoggerContext.start(LoggerContext.java:149)
> at
> org.apache.logging.log4j.core.impl.Log4jContextFactory.getContext(Log4jContextFactory.java:85)
> at
> org.apache.logging.log4j.core.impl.Log4jContextFactory.getContext(Log4jContextFactory.java:34)
> at org.apache.logging.log4j.LogManager.getContext(LogManager.java:200)
> at
> org.slf4j.helpers.Log4jLoggerFactory$PrivateManager.getContext(Log4jLoggerFactory.java:104)
> at
> org.slf4j.helpers.Log4jLoggerFactory.getContext(Log4jLoggerFactory.java:90)
> at
> org.slf4j.helpers.Log4jLoggerFactory.getLogger(Log4jLoggerFactory.java:46)
> at org.slf4j.LoggerFactory.getLogger(LoggerFactory.java:270)
> at org.slf4j.LoggerFactory.getLogger(LoggerFactory.java:281)
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