Simone Bordet created MCOMPILER-481:
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Summary: JPMS Regression: cannot access <class>
Key: MCOMPILER-481
URL: https://issues.apache.org/jira/browse/MCOMPILER-481
Project: Maven Compiler Plugin
Issue Type: Bug
Affects Versions: 3.9.0
Reporter: Simone Bordet
Attachments: compiler-bug.tar.gz
Version 3.8.1 is not affected.
The problem lies in how the module-path is constructed by the
maven-compiler-plugin – not sure what changes from 3.8.1 caused this.
In 3.8.1:
{code:java}
-d
/home/simon/tmp/compiler-bug/app/target/test-classes
-classpath
/home/simon/tmp/compiler-bug/app/target/test-classes
/home/simon/.m2/repository/org/junit/jupiter/junit-jupiter-api/5.8.2/junit-jupiter-api-5.8.2.jar
/home/simon/.m2/repository/org/opentest4j/opentest4j/1.2.0/opentest4j-1.2.0.jar
/home/simon/.m2/repository/org/junit/platform/junit-platform-commons/1.8.2/junit-platform-commons-1.8.2.jar
/home/simon/.m2/repository/org/apiguardian/apiguardian-api/1.1.2/apiguardian-api-1.1.2.jar
--module-path
/home/simon/tmp/compiler-bug/app/target/classes
/home/simon/.m2/repository/org/example/compiler-bug-service/1.0-SNAPSHOT/compiler-bug-service-1.0-SNAPSHOT.jar
/home/simon/.m2/repository/org/eclipse/jetty/jetty-util-ajax/10.0.7/jetty-util-ajax-10.0.7.jar
/home/simon/.m2/repository/org/eclipse/jetty/jetty-util/10.0.7/jetty-util-10.0.7.jar
/home/simon/.m2/repository/org/slf4j/slf4j-api/2.0.0-alpha5/slf4j-api-2.0.0-alpha5.jar
-sourcepath
/home/simon/tmp/compiler-bug/app/src/test/java
/home/simon/tmp/compiler-bug/app/target/generated-test-sources/test-annotations
-s
/home/simon/tmp/compiler-bug/app/target/generated-test-sources/test-annotations
-g
-nowarn
--release
11
-encoding
UTF-8
--patch-module
compiler.bug.app=/home/simon/tmp/compiler-bug/app/target/classes
/home/simon/tmp/compiler-bug/app/src/test/java
/home/simon/tmp/compiler-bug/app/target/generated-test-sources/test-annotations
--add-reads
compiler.bug.app=ALL-UNNAMED {code}
In 3.9.0:
{code:java}
-d
/home/simon/tmp/compiler-bug/app/target/test-classes
-classpath
/home/simon/tmp/compiler-bug/app/target/test-classes
/home/simon/.m2/repository/org/eclipse/jetty/jetty-util-ajax/10.0.7/jetty-util-ajax-10.0.7.jar
/home/simon/.m2/repository/org/eclipse/jetty/jetty-util/10.0.7/jetty-util-10.0.7.jar
/home/simon/.m2/repository/org/slf4j/slf4j-api/2.0.0-alpha5/slf4j-api-2.0.0-alpha5.jar
/home/simon/.m2/repository/org/junit/jupiter/junit-jupiter-api/5.8.2/junit-jupiter-api-5.8.2.jar
/home/simon/.m2/repository/org/opentest4j/opentest4j/1.2.0/opentest4j-1.2.0.jar
/home/simon/.m2/repository/org/junit/platform/junit-platform-commons/1.8.2/junit-platform-commons-1.8.2.jar
/home/simon/.m2/repository/org/apiguardian/apiguardian-api/1.1.2/apiguardian-api-1.1.2.jar
--module-path
/home/simon/tmp/compiler-bug/app/target/classes
/home/simon/.m2/repository/org/example/compiler-bug-service/1.0-SNAPSHOT/compiler-bug-service-1.0-SNAPSHOT.jar
-sourcepath
/home/simon/tmp/compiler-bug/app/src/test/java
/home/simon/tmp/compiler-bug/app/target/generated-test-sources/test-annotations
-s
/home/simon/tmp/compiler-bug/app/target/generated-test-sources/test-annotations
-g
-nowarn
--release
11
-encoding
UTF-8
--patch-module
compiler.bug.app=/home/simon/tmp/compiler-bug/app/target/classes
/home/simon/tmp/compiler-bug/app/src/test/java
/home/simon/tmp/compiler-bug/app/target/generated-test-sources/test-annotations
--add-reads
compiler.bug.app=ALL-UNNAMED {code}
Running with 3.9.0 yields:
{code:java}
[ERROR] Failed to execute goal
org.apache.maven.plugins:maven-compiler-plugin:3.9.0:testCompile
(default-testCompile) on project compiler-bug-app: Compilation failure
[ERROR]
/home/simon/tmp/compiler-bug/app/src/test/java/org/test/app/MainTest.java:[12,38]
cannot access org.eclipse.jetty.util.ajax.JSON
[ERROR] class file for org.eclipse.jetty.util.ajax.JSON not found {code}
Class {{JSON}} is in {{{}jetty-util-10.0.7.jar{}}}.
In 3.9.0 this jar is missing from the module-path, causing the error.
Attached you can find a reproducer: switch the maven-compiler-plugin version
from 3.8.1 (works) to 3.9.0 (does not work) in the main POM.
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