Closed
Description
Description
I'm using logj2 with a custom ContextDataProvider, and then using the aws lambda appender. My ContextDataProvider implementation uses Map.of methods from JDK to create cheap immutable maps, but apparently that doesn't work and throws UOE.
In the stacktrace it's shown that a method down the stack invokes ImmutableCollections.AbstractImmutableMap::clear, which throws UOE. Interesting enough, in many online examples they use Collections.emptyMap() for the empty map, which doesn't throw UOE on clear.
What puzzles me though is that I wasn't able to reproduce this issue with the log4j2-core console appender. Is the amazon appender doing something strange, or is this a bug of log4j2-core?
Configuration
Version: 2.22.0
Operating system: Linux
JDK: 21 (amazon)
Logs
2023-12-15T11:26:15.337000+00:00 WARN StatusConsoleListener org.apache.logging.log4j.spi.AbstractLogger caught java.lang.UnsupportedOperationException logging ReusableSimpleMessage: Incremented counter!
2023-12-15T11:26:15.338000+00:00 java.lang.UnsupportedOperationException
2023-12-15T11:26:15.338000+00:00 at java.base/java.util.ImmutableCollections.uoe(Unknown Source)
2023-12-15T11:26:15.338000+00:00 at java.base/java.util.ImmutableCollections$AbstractImmutableMap.clear(Unknown Source)
2023-12-15T11:26:15.338000+00:00 at org.apache.logging.log4j.core.impl.JdkMapAdapterStringMap.clear(JdkMapAdapterStringMap.java:122)
2023-12-15T11:26:15.338000+00:00 at org.apache.logging.log4j.core.impl.MutableLogEvent.clear(MutableLogEvent.java:143)
2023-12-15T11:26:15.338000+00:00 at org.apache.logging.log4j.core.impl.ReusableLogEventFactory.release(ReusableLogEventFactory.java:141)
2023-12-15T11:26:15.338000+00:00 at org.apache.logging.log4j.core.config.LoggerConfig.log(LoggerConfig.java:578)
2023-12-15T11:26:15.338000+00:00 at org.apache.logging.log4j.core.config.AwaitCompletionReliabilityStrategy.log(AwaitCompletionReliabilityStrategy.java:92)
2023-12-15T11:26:15.338000+00:00 at org.apache.logging.log4j.core.Logger.log(Logger.java:169)
2023-12-15T11:26:15.338000+00:00 at org.apache.logging.log4j.spi.AbstractLogger.tryLogMessage(AbstractLogger.java:2933)
2023-12-15T11:26:15.338000+00:00 at org.apache.logging.log4j.spi.AbstractLogger.logMessageTrackRecursion(AbstractLogger.java:2886)
2023-12-15T11:26:15.338000+00:00 at org.apache.logging.log4j.spi.AbstractLogger.logMessageSafely(AbstractLogger.java:2868)
2023-12-15T11:26:15.338000+00:00 at org.apache.logging.log4j.spi.AbstractLogger.logMessage(AbstractLogger.java:2647)
2023-12-15T11:26:15.338000+00:00 at org.apache.logging.log4j.spi.AbstractLogger.logIfEnabled(AbstractLogger.java:2594)
2023-12-15T11:26:15.339000+00:00 at org.apache.logging.log4j.spi.AbstractLogger.info(AbstractLogger.java:1597)
2023-12-15T11:26:15.339000+00:00 at dev.restate.sdk.examples.Greeter.greet(Greeter.kt:31)
[... My application stacktrace ...]
2023-12-15T11:26:15.340000+00:00 at dev.restate.sdk.lambda.BaseRestateLambdaHandler.handleRequest(BaseRestateLambdaHandler.java:28)
2023-12-15T11:26:15.340000+00:00 at com.amazonaws.services.lambda.runtime.api.client.EventHandlerLoader$PojoHandlerAsStreamHandler.handleRequest(EventHandlerLoader.java:202)
2023-12-15T11:26:15.340000+00:00 at com.amazonaws.services.lambda.runtime.api.client.EventHandlerLoader$2.call(EventHandlerLoader.java:905)
2023-12-15T11:26:15.340000+00:00 at com.amazonaws.services.lambda.runtime.api.client.AWSLambda.startRuntime(AWSLambda.java:245)
2023-12-15T11:26:15.340000+00:00 at com.amazonaws.services.lambda.runtime.api.client.AWSLambda.startRuntime(AWSLambda.java:197)
2023-12-15T11:26:15.340000+00:00 at com.amazonaws.services.lambda.runtime.api.client.AWSLambda.main(AWSLambda.java:187)