logback / LOGBACK-1725 [Open] RollingFileAppender.start causes ConcurrentModificationException
============================== Here's what changed in this issue in the last few minutes. This issue has been created This issue is now assigned to you. View or comment on issue using this link https://jira.qos.ch/browse/LOGBACK-1725 ============================== Issue created ------------------------------ David Otto created this issue on 17/Feb/23 1:50 PM Summary: RollingFileAppender.start causes ConcurrentModificationException Issue Type: Bug Assignee: Logback dev list Created: 17/Feb/23 1:50 PM Environment: In our application we add and remove appenders dynamically. We postpone the `.start()` call until the first messages arrives to avoid empty files. There might be more than one thread calling start() on the same RFA We got this error: {code:java} java.util.ConcurrentModificationException: null at java.base/java.util.HashMap$HashIterator.nextNode(HashMap.java:1597) at java.base/java.util.HashMap$EntryIterator.next(HashMap.java:1630) at java.base/java.util.HashMap$EntryIterator.next(HashMap.java:1628) at ch.qos.logback.core.rolling.RollingFileAppender.innerCheckForFileNamePatternCollisionInPreviousRFA(RollingFileAppender.java:135) at ch.qos.logback.core.rolling.RollingFileAppender.checkForCollisionsInPreviousRollingFileAppenders(RollingFileAppender.java:121) at ch.qos.logback.core.rolling.RollingFileAppender.start(RollingFileAppender.java:62) {code} is RollingFileAppender.start() supposed to be thread safe? Priority: Major Reporter: David otto ============================== This message was sent by Atlassian Jira (v8.8.0#808000-sha1:e2c7e59) _______________________________________________ logback-dev mailing list logback-dev@qos.ch https://mailman.qos.ch/cgi-bin/mailman/listinfo/logback-dev
