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Posted to issues@maven.apache.org by "anthonyvdotbe (via GitHub)" <gi...@apache.org> on 2026/07/23 11:35:53 UTC
[I] No recompilation if the dependencies have changed [maven-compiler-plugin]
anthonyvdotbe opened a new issue, #1087:
URL: https://github.com/apache/maven-compiler-plugin/issues/1087
### Affected version
3.15.0
### Bug description
To reproduce:
* unzip [sample.zip](https://github.com/user-attachments/files/30305357/sample.zip)
* run `mvn compile`
* delete the `dependencies` section from the POM
* run `mvn compile`
Expected: the last step fails because the dependencies have changed and thus recompilation is triggered and thus compilation fails due to missing classes
Actual: the last step succeeds and the compiler plugin says "Nothing to compile - all classes are up to date."
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Re: [I] No recompilation if the dependencies have changed [maven-compiler-plugin]
Posted by "wilx (via GitHub)" <gi...@apache.org>.
wilx commented on issue #1087:
URL: https://github.com/apache/maven-compiler-plugin/issues/1087#issuecomment-5147328443
Historical context: MCOMPILER-363 (apache/maven-compiler-plugin#567) and apache/maven-compiler-plugin#8 attempted to add this kind of persisted dependency-set detection to the 3.x plugin. The supporting work was MSHARED-763 (apache/maven-shared-incremental#38) and apache/maven-shared-incremental#1, which persisted classpath entries and detected added, removed, modified, and reordered dependencies. Both PRs were closed without merge, so the current 3.x code still lacks that state. apache/maven-compiler-plugin#73 later added JAR timestamp checks, but it does not detect a dependency disappearing between Maven invocations.
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Re: [I] No recompilation if the dependencies have changed [maven-compiler-plugin]
Posted by "slawekjaranowski (via GitHub)" <gi...@apache.org>.
slawekjaranowski closed issue #1087: No recompilation if the dependencies have changed
URL: https://github.com/apache/maven-compiler-plugin/issues/1087
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