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Posted to issues@maven.apache.org by "joseluisll (via GitHub)" <gi...@apache.org> on 2026/09/04 14:41:43 UTC

[I] java.net.preferIPv4Stack set via systemPropertyVariables is ignored since 3.6.0 [maven-surefire]

joseluisll opened a new issue, #3456:
URL: https://github.com/apache/maven-surefire/issues/3456

   ### Affected version
   
   3.6.0
   
   ### Bug description
   
   Surefire 3.6.0 initialises the fork's NIO/native networking layer before applying systemPropertyVariables, so any property read during that initialisation — like java.net.preferIPv4Stack — arrives too late. If a project uses systemPropertyVariables,  the failure is silent and environment-dependent, and surfaces far from its cause. Code search suggests a bounded but non-trivial population shares the pattern (~830 poms co-mentioning the property and systemPropertyVariables, including activemq, ratis, tomee and infinispan).
   
   I encountered this bug upgrading the pluging in hadoop, that uses the variable preferIPv4Stack but the fork initializes the IPv6 Stack ignoring the variable.
   
   Found working in HADOOP-19964. 
   
   I use AI assistance to perform the coding work.
   


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Re: [I] [Regression] java.net.preferIPv4Stack set via systemPropertyVariables is ignored since 3.6.0 [maven-surefire]

Posted by "olamy (via GitHub)" <gi...@apache.org>.
olamy closed issue #3456: [Regression] java.net.preferIPv4Stack set via systemPropertyVariables is ignored since 3.6.0
URL: https://github.com/apache/maven-surefire/issues/3456


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