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Posted to issues@maven.apache.org by "Sylwester Lachiewicz (JIRA)" <ji...@apache.org> on 2019/01/14 01:17:00 UTC
[jira] [Updated] (MCOMPILER-310) Different behaviour between JDK 8
/ JDK 9 related to annotation processor usage
[ https://issues.apache.org/jira/browse/MCOMPILER-310?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Sylwester Lachiewicz updated MCOMPILER-310:
-------------------------------------------
Description:
Based on the [SO question|https://stackoverflow.com/questions/46500984/immutables-dont-generate-code-with-java-9-with-modules] 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)?
was:
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)?
> 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 [SO question|https://stackoverflow.com/questions/46500984/immutables-dont-generate-code-with-java-9-with-modules] 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)?
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