Chesnay Schepler created FLINK-8847:
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Summary: Modules containing package-info.java are always recompiled
Key: FLINK-8847
URL: https://issues.apache.org/jira/browse/FLINK-8847
Project: Flink
Issue Type: Bug
Components: Build System
Affects Versions: 1.3.2, 1.5.0, 1.4.1
Reporter: Chesnay Schepler
Assignee: Chesnay Schepler
Fix For: 1.5.0, 1.4.3
All modules that contain a {{package-info.java}} file (which does not contain
annotations which applies to *all* instances in Flink) will always be
recompiled by the {{maven-compiler-plugin}}.
To detect modified files the compiler compares timestamps of the source and
.class file. In the case of {{package-info.java}} no .class file is created if
it doesn't contain annotations, which the compiler interprets as a missing
.class file.
We can add {{<arg>-Xpkginfo:always</arg>}} to the compiler configuration to
force the generation of these files to prevent this from happening.
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