[hibernate-issues] [JIRA] (HHH-13949) Hibernate doesn't generate metamodel for JPMS module

[P (JIRA)]

P ( https://hibernate.atlassian.net/secure/ViewProfile.jspa?accountId=557058%3Aed8a9f32-e1de-429d-b17a-fb86b807af6d ) *created* an issue

Hibernate ORM ( https://hibernate.atlassian.net/browse/HHH?atlOrigin=eyJpIjoiOGQyZWIzZjU2OWMyNDk5Y2IzMGFkNDFhMjBkZjRmZmQiLCJwIjoiaiJ9 ) / Bug ( https://hibernate.atlassian.net/browse/HHH-13949?atlOrigin=eyJpIjoiOGQyZWIzZjU2OWMyNDk5Y2IzMGFkNDFhMjBkZjRmZmQiLCJwIjoiaiJ9 ) HHH-13949 ( https://hibernate.atlassian.net/browse/HHH-13949?atlOrigin=eyJpIjoiOGQyZWIzZjU2OWMyNDk5Y2IzMGFkNDFhMjBkZjRmZmQiLCJwIjoiaiJ9 ) Hibernate doesn't generate metamodel for JPMS module ( https://hibernate.atlassian.net/browse/HHH-13949?atlOrigin=eyJpIjoiOGQyZWIzZjU2OWMyNDk5Y2IzMGFkNDFhMjBkZjRmZmQiLCJwIjoiaiJ9 )

Issue Type: Bug Affects Versions: 5.4.14 Assignee: Unassigned Components: hibernate-jpamodelgen Created: 15/Apr/2020 11:07 AM Priority: Major Reporter: P ( https://hibernate.atlassian.net/secure/ViewProfile.jspa?accountId=557058%3Aed8a9f32-e1de-429d-b17a-fb86b807af6d )

I don't know if it bug, but I asked this question on SO here ( https://stackoverflow.com/questions/61233419/is-it-possible-to-generate-hibernate-metamodel-for-java-11-and-java-modules ) but got no answer.

I have a java module with JPA entities and persistence.xml and I want to generate metamodel. I tried two variants.

*Variant 1*

        <plugin>
               <groupId>org.apache.maven.plugins</groupId>
               <artifactId>maven-compiler-plugin</artifactId>
               <version>3.8.1</version>
               <configuration>
                   <source>${maven.compiler.source}</source>
                   <target>${maven.compiler.target}</target>
                   <annotationProcessorPaths>
                           <annotationProcessorPath>
                                   <groupId>org.hibernate</groupId>
                                   <artifactId>hibernate-jpamodelgen</artifactId>
                                   <version>5.4.14.Final</version>
                           </annotationProcessorPath>
                           <path>
                                   <groupId>javax.xml.bind</groupId>
                                   <artifactId>jaxb-api</artifactId>
                                   <version>2.3.0</version>
                           </path>
                           <path>
                                   <groupId>javax.annotation</groupId>
                                   <artifactId>javax.annotation-api</artifactId>
                                   <version>1.3.1</version>
                           </path>
                   </annotationProcessorPaths>
               </configuration>
               <dependencies>
               </dependencies>
           </plugin>

Result:

   Caused by: java.lang.NullPointerException
   	at org.hibernate.jpamodelgen.ClassWriter.writeGeneratedAnnotation(ClassWriter.java:202)
   	at org.hibernate.jpamodelgen.ClassWriter.generateBody(ClassWriter.java:100)
   	at org.hibernate.jpamodelgen.ClassWriter.writeFile(ClassWriter.java:53)
   	at org.hibernate.jpamodelgen.JPAMetaModelEntityProcessor.createMetaModelClasses(JPAMetaModelEntityProcessor.java:145)
   	at org.hibernate.jpamodelgen.JPAMetaModelEntityProcessor.process(JPAMetaModelEntityProcessor.java:135)
   	at jdk.compiler/com.sun.tools.javac.processing.JavacProcessingEnvironment.callProcessor(JavacProcessingEnvironment.java:972)
   	at jdk.compiler/com.sun.tools.javac.processing.JavacProcessingEnvironment.discoverAndRunProcs(JavacProcessingEnvironment.java:888)
   	at jdk.compiler/com.sun.tools.javac.processing.JavacProcessingEnvironment$Round.run(JavacProcessingEnvironment.java:1214)
   	at jdk.compiler/com.sun.tools.javac.processing.JavacProcessingEnvironment.doProcessing(JavacProcessingEnvironment.java:1326)
   	at jdk.compiler/com.sun.tools.javac.main.JavaCompiler.processAnnotations(JavaCompiler.java:1258)
   	at jdk.compiler/com.sun.tools.javac.main.JavaCompiler.compile(JavaCompiler.java:936)
   	at jdk.compiler/com.sun.tools.javac.api.JavacTaskImpl.lambda$doCall$0(JavacTaskImpl.java:104)
   	at jdk.compiler/com.sun.tools.javac.api.JavacTaskImpl.handleExceptions(JavacTaskImpl.java:147)
   	... 28 more

*Variant 2*

       <plugin>
           <groupId>org.bsc.maven</groupId>
           <artifactId>maven-processor-plugin</artifactId>
           <version>3.3.3</version>
           <executions>
               <execution>
                   <goals>
                       <goal>process</goal>
                   </goals>
                   <phase>generate-sources</phase>
                   <configuration>
                       <compilerArguments>-AaddGeneratedAnnotation= false </compilerArguments>
                       <processors>
                         <processor>org.hibernate.jpamodelgen.JPAMetaModelEntityProcessor</processor>
                       </processors>
                   </configuration>
               </execution>
           </executions>
           <dependencies>
               <dependency>
                   <groupId>org.hibernate</groupId>
                   <artifactId>hibernate-jpamodelgen</artifactId>
                   <version>5.4.14.Final</version>
               </dependency>
           </dependencies>
       </plugin>

Result a lot of errors like the following:

   [ERROR] diagnostic: /home/<deleted>/src/main/java/module-info.java:11: error: module not found: org.slf4j
       requires org.slf4j;
                   ^
   [ERROR] diagnostic: /home/<deleted>/src/main/java/module-info.java:15: error: module not found: java.persistence
       requires java.persistence;
                    ^

It seems that hibernate metamodel generator can't work with JPMS modules. Either I do something wrong.

( https://hibernate.atlassian.net/browse/HHH-13949#add-comment?atlOrigin=eyJpIjoiOGQyZWIzZjU2OWMyNDk5Y2IzMGFkNDFhMjBkZjRmZmQiLCJwIjoiaiJ9 ) Add Comment ( https://hibernate.atlassian.net/browse/HHH-13949#add-comment?atlOrigin=eyJpIjoiOGQyZWIzZjU2OWMyNDk5Y2IzMGFkNDFhMjBkZjRmZmQiLCJwIjoiaiJ9 )

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