Hi, I'm trying to use jdeps to get a full list of split packages, and while trying to run jdeps, I found some funny things that I was unaware of about the module system (unfortunately, found no way to actually use jdeps to list all split packages, it just reports the first error found and exists... will have to check out other tools or build one, suggestions welcomed)
*One cannot have a class not contained in a package* > jdeps -R --module-path . *.jar Exception in thread "main" java.lang.module.FindException: Unable to derive module descriptor for ./gt-geojson-21-SNAPSHOT.jar at java.base/jdk.internal.module.ModulePath.readJar(ModulePath.java:647) at java.base/jdk.internal.module.ModulePath.readModule(ModulePath.java:330) at java.base/jdk.internal.module.ModulePath.scanDirectory(ModulePath.java:283) at java.base/jdk.internal.module.ModulePath.scan(ModulePath.java:231) at java.base/jdk.internal.module.ModulePath.scanNextEntry(ModulePath.java:189) at java.base/jdk.internal.module.ModulePath.findAll(ModulePath.java:165) at jdk.jdeps/com.sun.tools.jdeps.JdepsConfiguration$Builder.build(JdepsConfiguration.java:544) at jdk.jdeps/com.sun.tools.jdeps.JdepsTask.buildConfig(JdepsTask.java:589) at jdk.jdeps/com.sun.tools.jdeps.JdepsTask.run(JdepsTask.java:543) at jdk.jdeps/com.sun.tools.jdeps.JdepsTask.run(JdepsTask.java:519) at jdk.jdeps/com.sun.tools.jdeps.Main.main(Main.java:49) Caused by: java.lang.module.InvalidModuleDescriptorException: *Skunkworks.class found in top-level directory (unnamed package not allowed in module)* at java.base/jdk.internal.module.ModulePath.toPackageName(ModulePath.java:719) at java.base/java.util.stream.ReferencePipeline$3$1.accept(ReferencePipeline.java:195) at java.base/java.util.HashMap$KeySpliterator.forEachRemaining(HashMap.java:1603) at java.base/java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:484) at java.base/java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:474) at java.base/java.util.stream.ReduceOps$ReduceOp.evaluateSequential(ReduceOps.java:913) at java.base/java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234) at java.base/java.util.stream.ReferencePipeline.collect(ReferencePipeline.java:578) at java.base/jdk.internal.module.ModulePath.deriveModuleDescriptor(ModulePath.java:530) at java.base/jdk.internal.module.ModulePath.readJar(ModulePath.java:643) ... 10 more Oh fun, the geojson module really has a Skunkworks class at the top level. Easy to remove. *One cannot declare services that are not in the module* Exception in thread "main" java.lang.module.FindException: Unable to derive module descriptor for ./gt-svg-21-SNAPSHOT.jar at java.base/jdk.internal.module.ModulePath.readJar(ModulePath.java:647) at java.base/jdk.internal.module.ModulePath.readModule(ModulePath.java:330) at java.base/jdk.internal.module.ModulePath.scanDirectory(ModulePath.java:283) at java.base/jdk.internal.module.ModulePath.scan(ModulePath.java:231) at java.base/jdk.internal.module.ModulePath.scanNextEntry(ModulePath.java:189) at java.base/jdk.internal.module.ModulePath.findAll(ModulePath.java:165) at jdk.jdeps/com.sun.tools.jdeps.JdepsConfiguration$Builder.build(JdepsConfiguration.java:544) at jdk.jdeps/com.sun.tools.jdeps.JdepsTask.buildConfig(JdepsTask.java:589) at jdk.jdeps/com.sun.tools.jdeps.JdepsTask.run(JdepsTask.java:543) at jdk.jdeps/com.sun.tools.jdeps.JdepsTask.run(JdepsTask.java:519) at jdk.jdeps/com.sun.tools.jdeps.Main.main(Main.java:49) *Caused by: java.lang.module.InvalidModuleDescriptorException: Provider class org.apache.batik.ext.awt.image.codec.imageio.ImageIOPNGImageWriter not in module* at java.base/jdk.internal.module.ModulePath.deriveModuleDescriptor(ModulePath.java:554) at java.base/jdk.internal.module.ModulePath.readJar(ModulePath.java:643) ... 10 more Indeed the SVG module is trying to export readers and writers that are actually inside Batik. Nope, not allowed. Same goes for: Exception in thread "main" java.lang.module.FindException: Unable to derive module descriptor for ./gt-main-21-SNAPSHOT.jar at java.base/jdk.internal.module.ModulePath.readJar(ModulePath.java:647) at java.base/jdk.internal.module.ModulePath.readModule(ModulePath.java:330) at java.base/jdk.internal.module.ModulePath.scanDirectory(ModulePath.java:283) at java.base/jdk.internal.module.ModulePath.scan(ModulePath.java:231) at java.base/jdk.internal.module.ModulePath.scanNextEntry(ModulePath.java:189) at java.base/jdk.internal.module.ModulePath.findAll(ModulePath.java:165) at jdk.jdeps/com.sun.tools.jdeps.JdepsConfiguration$Builder.build(JdepsConfiguration.java:544) at jdk.jdeps/com.sun.tools.jdeps.JdepsTask.buildConfig(JdepsTask.java:589) at jdk.jdeps/com.sun.tools.jdeps.JdepsTask.run(JdepsTask.java:543) at jdk.jdeps/com.sun.tools.jdeps.JdepsTask.run(JdepsTask.java:519) at jdk.jdeps/com.sun.tools.jdeps.Main.main(Main.java:49) Caused by: java.lang.module.InvalidModuleDescriptorException:* Provider class org.geotools.data.gml.GMLDataSourceFactory not in module* at java.base/jdk.internal.module.ModulePath.deriveModuleDescriptor(ModulePath.java:554) at java.base/jdk.internal.module.ModulePath.readJar(ModulePath.java:643) ... 10 more Exception in thread "main" java.lang.module.FindException: Unable to derive module descriptor for ./gt-complex-21-SNAPSHOT.jar at java.base/jdk.internal.module.ModulePath.readJar(ModulePath.java:647) at java.base/jdk.internal.module.ModulePath.readModule(ModulePath.java:330) at java.base/jdk.internal.module.ModulePath.scanDirectory(ModulePath.java:283) at java.base/jdk.internal.module.ModulePath.scan(ModulePath.java:231) at java.base/jdk.internal.module.ModulePath.scanNextEntry(ModulePath.java:189) at java.base/jdk.internal.module.ModulePath.findAll(ModulePath.java:165) at jdk.jdeps/com.sun.tools.jdeps.JdepsConfiguration$Builder.build(JdepsConfiguration.java:544) at jdk.jdeps/com.sun.tools.jdeps.JdepsTask.buildConfig(JdepsTask.java:589) at jdk.jdeps/com.sun.tools.jdeps.JdepsTask.run(JdepsTask.java:543) at jdk.jdeps/com.sun.tools.jdeps.JdepsTask.run(JdepsTask.java:519) at jdk.jdeps/com.sun.tools.jdeps.Main.main(Main.java:49) Caused by: java.lang.module.InvalidModuleDescriptorException: *Provider class org.geotools.util.ComplexAttributeConverterFactory not in module* at java.base/jdk.internal.module.ModulePath.deriveModuleDescriptor(ModulePath.java:554) at java.base/jdk.internal.module.ModulePath.readJar(ModulePath.java:643) ... 10 more Cheers Andrea == GeoServer Professional Services from the experts! 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