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Werner Glanzer commented on MCOMPILER-310: ------------------------------------------ Is there any activity on this issue? Is it an issue? > Different behaviour between JDK 8 / JDK 9 related to annotation processor > usage > ------------------------------------------------------------------------------- > > Key: MCOMPILER-310 > URL: https://issues.apache.org/jira/browse/MCOMPILER-310 > Project: Maven Compiler Plugin > Issue Type: Bug > Affects Versions: 3.7.0 > Reporter: Karl Heinz Marbaise > Priority: Critical > > Based on the > [https://stackoverflow.com/questions/46500984/immutables-dont-generate-code-with-java-9-with-modules|SO > question] is looks like we have a difference in behaviour between JDK 8 / > JDK 9 related to the picking up of annotation processors. > If you run the following code under JDK 8 (except for a module-info.java > file): > {code:xml} > <?xml version="1.0" encoding="UTF-8"?> > <project xmlns="http://maven.apache.org/POM/4.0.0"; > xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"; > xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 > http://maven.apache.org/xsd/maven-4.0.0.xsd";> > <modelVersion>4.0.0</modelVersion> > <groupId>example</groupId> > <artifactId>jigsaw</artifactId> > <version>1.0-SNAPSHOT</version> > <properties> > <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding> > </properties> > <dependencies> > <dependency> > <groupId>org.immutables</groupId> > <artifactId>value</artifactId> > <version>2.5.6</version> > <scope>provided</scope> > </dependency> > </dependencies> > <build> > <plugins> > <plugin> > <groupId>org.apache.maven.plugins</groupId> > <artifactId>maven-compiler-plugin</artifactId> > <version>3.7.0</version> > </plugin> > </plugins> > </build> > </project> > {code} > The maven-compiler-plugin will automatically pickup the annotation processor > and produce the classed from the annotation. > If you run the same with JDK 9 this will not work anymore. Only if you > explicitly add the annotation processor configuration to > maven-compiler-plugin it will work as expected: > {code:xml} > <?xml version="1.0" encoding="UTF-8"?> > <project xmlns="http://maven.apache.org/POM/4.0.0"; > xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"; > xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 > http://maven.apache.org/xsd/maven-4.0.0.xsd";> > <modelVersion>4.0.0</modelVersion> > <groupId>example</groupId> > <artifactId>jigsaw</artifactId> > <version>1.0-SNAPSHOT</version> > <properties> > <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding> > </properties> > <dependencies> > <dependency> > <groupId>org.immutables</groupId> > <artifactId>value</artifactId> > <version>2.5.6</version> > <scope>provided</scope> > </dependency> > </dependencies> > <build> > <plugins> > <plugin> > <groupId>org.apache.maven.plugins</groupId> > <artifactId>maven-compiler-plugin</artifactId> > <version>3.7.0</version> > <configuration> > <source>9</source> > <target>9</target> > <annotationProcessorPaths> > <dependency> > <groupId>org.immutables</groupId> > <artifactId>value</artifactId> > <version>2.5.6</version> > </dependency> > </annotationProcessorPaths> > </configuration> > </plugin> > </plugins> > </build> > </project> > {code} > I'm not sure if this is based on the usage of modules (module-path instead of > classpath)? -- This message was sent by Atlassian JIRA (v6.4.14#64029)
