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…reation Calling project.setFile(dependencyReducedPomLocation) changes the project file reference for subsequent plugins, causing them to resolve relative paths against the DRP directory (e.g., target/) instead of the project basedir. This breaks plugins like apache-rat-plugin and checkstyle that rely on project.getFile() for path resolution. Save and restore the original project file around DRP creation to prevent this side-effect. Includes integration test MSHADE-434_ratSideEffect that verifies project.file still points to the original pom.xml after shading.
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Pull request overview
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Restores MavenProject#getFile() after creating the dependency-reduced POM to prevent side effects on subsequent plugins, and adds an integration test to pin the behavior.
Changes:
- Save the original
project.getFile()before DRP generation and restore it afterward inShadeMojo. - Add an IT project that configures
dependencyReducedPomLocationundertarget/. - Add Groovy verification to assert DRP + shaded JAR creation and that
${project.file}remainspom.xml.
Reviewed changes
Copilot reviewed 3 out of 3 changed files in this pull request and generated 1 comment.
| File | Description |
|---|---|
| src/main/java/org/apache/maven/plugins/shade/mojo/ShadeMojo.java | Saves/restores project.file around DRP generation to avoid leaking state to later plugins. |
| src/it/projects/MSHADE-434_ratSideEffect/verify.groovy | Verifies DRP + shaded JAR outputs and checks build log for ${project.file} value. |
| src/it/projects/MSHADE-434_ratSideEffect/pom.xml | Integration-test Maven project reproducing the side-effect scenario and evaluating project.file. |
Comments suppressed due to low confidence (1)
src/main/java/org/apache/maven/plugins/shade/mojo/ShadeMojo.java:1
project.setFile(originalProjectFile)won’t run ifcreateDependencyReducedPom(artifactIds)(or subsequent logic) throws, so the brokenproject.filecan still leak to later plugins on failure paths. Wrap DRP creation in atry { ... } finally { project.setFile(originalProjectFile); }(and keep theuseDependencyReducedPomInJarlogic inside thetry).
/*
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| def projectFileLine = lines.find { it =~ /^\// && it.endsWith("/pom.xml") } | ||
| assert projectFileLine != null : "project.file value not found in build log (expected a path ending with /pom.xml)" | ||
| assert projectFileLine.endsWith("/pom.xml") : "project.file should be pom.xml, but was: " + projectFileLine |
|
The red cell is this PR's own IT, not the change under test.
def projectFileLine = lines.find { it =~ /^\// && it.endsWith("/pom.xml") }
assert projectFileLine != nullBoth predicates assume a Unix path. On Windows the value is Matching on the file name instead of the separator fixes it — #828 carries the identical matcher and fails on the same single cell, so one fix covers both. On the overlap#128, this PR, and #828 all address the same thing: This comment was created with AI assistance. |
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Problem
Calling
project.setFile(dependencyReducedPomLocation)inShadeMojochanges the project file reference for all subsequent plugins in the build. This causes plugins likeapache-rat-pluginandmaven-checkstyle-pluginto resolve relative paths against the wrong directory, breaking their behavior.Specifically, when
dependencyReducedPomLocationis set to a directory other than${basedir}(e.g.,target/),project.getFile()returns the DRP path, and plugins relying ongetFile().getParentFile()for basedir resolution will resolve paths incorrectly.This was introduced/changed by MSHADE-321 (commit 6ea8543) which moved the
createDependencyReducedPom()call outside of the inner artifact-processing block.Fix
Save
project.getFile()before callingcreateDependencyReducedPom()and restore it afterward inShadeMojo.execute(). This ensuresproject.getFile()continues to point to the originalpom.xmlafter the shade plugin finishes, preventing side effects on subsequent plugins.Integration Test
MSHADE-434_ratSideEffect: Configures shade withdependencyReducedPomLocationintarget/, then verifies viamaven-help-plugin:evaluatethat${project.file}still points to the originalpom.xmlafter shading.dependency-reduced-pom.xml)pom.xml)All 72 unit tests pass.
Fixes #453