I found that when I use this instead: javac -J--add-modules -Jjava.xml.bind
then java.xml.bind is made available to my annotation processor and javac is able to compile. Two quick questions: 1) Is this by design? 2) How would this work if I made my annotation processor a proper module which required java.xml.bind? In my initial testing, the processor isn't picked when if I move it from -classpath to --module-path. Cheers, Eirik. On Sun, Nov 20, 2016 at 10:57 PM, Eirik Bjørsnøs <eir...@gmail.com> wrote: > > Hi there! > > I'm giving Java 9 and Jigsaw a spin on a moderately complex project. > (Interestingly, the project is itself a module system, so we do stuff like > annotation processing and dynamic reloading of class loader graphs and > services) > > I'm experienced enough with advanced Java to have shot myself in the foot > with a java.lang.ClassNotFoundException: java.lang.ClassNotFoundException > :-) However, I've only recently been looking into Jigsaw in concrete terms. > So please be kind when I expose my ignorance :-) > > Initially, I just want to see if I can get the project to compile on Java > 9. > > So I'm using --add-modules to javac here and there to add modules not > available to the unnamed module by default. (Not making any proper modules > yet, that will be the next step). > > This seems to be working fine, except for one of our annotation > processors, which happens to use JAXBContext from java.xml.bind. > > I added --add-modules to javac (via Maven configuration), but my > annotation processor still can't load JAXBContext and fails with this > message: > > $ java -version > java version "9-ea" > Java(TM) SE Runtime Environment (build 9-ea+144) > Java HotSpot(TM) 64-Bit Server VM (build 9-ea+144, mixed mode) > > $ mvn clean install -e > > This fails with: > > Caused by: java.lang.NoClassDefFoundError: javax/xml/bind/JAXBContext > at com.example.processor.ProcessorUsingJavaXmlBind.process( > ProcessorUsingJavaXmlBind.java:24) > at jdk.compiler/com.sun.tools.javac.processing.JavacProcessingEnvironment. > callProcessor(JavacProcessingEnvironment.java:959) > at jdk.compiler/com.sun.tools.javac.processing.JavacProcessingEnvironment. > discoverAndRunProcs(JavacProcessingEnvironment.java:875) > at jdk.compiler/com.sun.tools.javac.processing.JavacProcessingEnvironment. > access$2100(JavacProcessingEnvironment.java:106) > at jdk.compiler/com.sun.tools.javac.processing.JavacProcessingEnvironment$ > Round.run(JavacProcessingEnvironment.java:1182) > at jdk.compiler/com.sun.tools.javac.processing.JavacProcessingEnvironment. > doProcessing(JavacProcessingEnvironment.java:1290) > at jdk.compiler/com.sun.tools.javac.main.JavaCompiler.processAnnotations( > JavaCompiler.java:1260) > at jdk.compiler/com.sun.tools.javac.main.JavaCompiler. > compile(JavaCompiler.java:939) > at jdk.compiler/com.sun.tools.javac.api.JavacTaskImpl$1. > call(JavacTaskImpl.java:106) > at jdk.compiler/com.sun.tools.javac.api.JavacTaskImpl$1. > call(JavacTaskImpl.java:100) > at jdk.compiler/com.sun.tools.javac.api.JavacTaskImpl.handleExceptions( > JavacTaskImpl.java:137) > ... 28 more > > I've confirmed that this reproduces using only javac: > > $ cd example-module > > $ javac -d target/classes -classpath target/classes:$HOME/.m2/ > repository/com/example/annotation-processor/1.0- > SNAPSHOT/annotation-processor-1.0-SNAPSHOT.jar: -sourcepath > src/main/java/ -target 1.9 -source 1.9 --add-modules java.xml.bind > src/main/java/com/example/module/SomeClass.java > > java.xml? true > java.xml.bind? false > > > An annotation processor threw an uncaught exception. > Consult the following stack trace for details. > java.lang.NoClassDefFoundError: javax/xml/bind/JAXBContext > at com.example.processor.ProcessorUsingJavaXmlBind.process( > ProcessorUsingJavaXmlBind.java:24) > at jdk.compiler/com.sun.tools.javac.processing.JavacProcessingEnvironment. > callProcessor(JavacProcessingEnvironment.java:959) > > > I've reduced this to a minimal-ish test case, available on Github: > > https://github.com/eirbjo/java-xml-bind-processor > > Here's the annotation processor: > > https://github.com/eirbjo/java-xml-bind-processor/blob/ > master/annotation-processor/src/main/java/com/example/processor/ > ProcessorUsingJavaXmlBind.java > > The class under compilation and the annotation: > > https://github.com/eirbjo/java-xml-bind-processor/blob/ > master/example-module/src/main/java/com/example/module/SomeClass.java > https://github.com/eirbjo/java-xml-bind-processor/blob/ > master/example-module/src/main/java/com/example/module/SomeAnnotation.java > > > Any clues? > > Cheers, > Eirik. > > > >
