[MPH-182] mvn help:evaluate does not evaluate java.version correctly

[jira-importer]

Matt smith opened MPH-182 and commented

Steps to reproduce:

1. Create a Java project with Maven.
2. Set a new property called java.version and set the value to a different value from your installed JDK.
3. Run mvn help:evaluate and use the expression ${java.version}
4. The Java version that will be output will be your JDK version, not the property value.

Ideal behaviour:

• Value that is output is the value that is within the java.version property.

Workaround:

• Set another property (e.g. something) to the value ${java.version}
• Run mvn help:evaluate and use the expression ${something}
• The correct property value will be output.

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Attachments:

• Screenshot 2021-10-08 at 11.19.07.png (13.05 kB)
• Screenshot 2021-10-08 at 11.19.38.png (33.13 kB)

2 votes, 3 watchers

[jira-importer]

Michael Osipov commented

I think this is rooted in the expression evaluator in Maven Core. It goes through a stacked design of sources: org.apache.maven.project.interpolation.AbstractStringBasedModelInterpolator.createValueSources(Model, File, ProjectBuilderConfiguration)

[jira-importer]

Miroslav Zaťko commented

in my case, on ubuntu, plugin shows "complete" value of java internal property "java.version" like "17.0.8.1" resp. "11.0.20.1" resp. "1.8.0_382" not just "17" as on screenshot