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pmwmedia avatar pmwmedia commented on June 13, 2024

Unfortunately, we cannot use computeIfAbsent() here because we need to be backward compatible with Java 8.

However, tinylog 3 will drop support for Java 8 and use computeIfAbsent():
https://github.com/tinylog-org/tinylog/blob/v3.0/slf4j-tinylog/src/main/java/org/tinylog/slf4j/TinylogLoggerFactory.java#L27

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q3769 avatar q3769 commented on June 13, 2024

Unfortunately, we cannot use computeIfAbsent() here because we need to be backward compatible with Java 8.

However, tinylog 3 will drop support for Java 8 and use computeIfAbsent(): https://github.com/tinylog-org/tinylog/blob/v3.0/slf4j-tinylog/src/main/java/org/tinylog/slf4j/TinylogLoggerFactory.java#L27

Both computeIfAbsent and putIfAbsent are "since 1.8". Why can putIfAbsent be used, but not computeIfAbsent?

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pmwmedia avatar pmwmedia commented on June 13, 2024

Sorry, I meant Java 6. In tinylog 2, we need to be backward compatible with Java 6:
https://github.com/tinylog-org/tinylog/blob/v2.7/pom.xml#L141

In Java 6, the ConcurrentMap supports putIfAbsent(), but does not support computeIfAbsent():
https://docs.oracle.com/javase/6/docs/api/java/util/concurrent/ConcurrentMap.html

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