Fix StringBuilder cache corruption on recursive access
#2275
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ppkarwasz
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Feb 9, 2024
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This certainly looks great and builds up on your work on main, but do we really need to backport StringBuilderRecycler to 2.x?
This is an edge case that is only triggered, if we two nested log calls. I would prefer a fix with the minimal amount of LOCs required. In this case I think that ParameterizedMessage needs a:
private static final ThreadLocal<AtomicInteger> recursionCount;field.
log4j-api/src/main/java/org/apache/logging/log4j/message/ReusableParameterizedMessage.java
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You are right. I have changed the implementation as you suggested and it indeed looks better. 💯 Thanks for the review. 😍 |
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