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fix(maven): do not cache exec-maven-plugin:java - #37542
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exec:java runs an arbitrary main class, so its effects are not captured by the target/ output the analyzer assumes. A cached hit would replay the terminal output and never start the program, which is wrong for a server started with exec:java and for any other side-effecting run.
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Current Behavior
The Maven analyzer decides whether a goal is cacheable with a short deny list, and everything not on it is cacheable with
{projectRoot}/targetas its output.exec-maven-plugin:javais not on the list, so the inferredexec:javatarget iscache: true.exec:javaruns an arbitrary main class. Its effects are not captured bytarget/, and a cache hit replays the stored terminal output without starting the program. A server started withexec:javanever starts on the second run, and marking the targetcontinuous: trueinproject.jsonis rejected untilcache: falseis added alongside, because Nx refuses a continuous target that is also cacheable.Expected Behavior
exec-maven-plugin:javais in the analyzer'snonCacheableset, so the inferredexec:javatarget iscache: falsewith no inputs or outputs, the same asspring-boot-maven-plugin:run. AMojoAnalyzerTestcase covers it.The scope is deliberately
exec:javaonly.exec:execruns an external executable and could get the same treatment, but it is also used for one-shot build steps, so that change is left for a separate decision.The Maven plugin version moves to 0.0.19 across the POMs and
@nx/maven's pinned version, with the usual migration that updatesdev.nx.maven:nx-maven-pluginin a workspace's rootpom.xml.Related Issue(s)
N/A
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