Hi all,
I might have spoken too soon in my last October email [1]. Ever since,
I've
been having a hell of a time trying to get Gradle's so-called
„shaded“ API jar
to play nicely with the other modules in my JPMS-build-enabling Gradle
plugin [2]
For some reason, Gradle's generated artifact redundantly duplicates all
the
packages of two modules from the JDK: javax.xml and jdk.xml.dom.
Any other modules in the module path that read packages in either of
those two system
modules breaks the JPMS with your classic split package error:
----
$ java -ea src\eg\UnPatchable.java
Exception in thread "main" java.lang.module.ResolutionException:
Modules gradle.api and java.xml export package javax.xml.transform to
module
com.github.javaparser.symbolsolver.core
at
java.base/java.lang.module.Resolver.resolveFail(Resolver.java:885)
at
java.base/java.lang.module.Resolver.failTwoSuppliers(Resolver.java:797)
at
java.base/java.lang.module.Resolver.checkExportSuppliers(Resolver.java:718)
at java.base/java.lang.module.Resolver.finish(Resolver.java:362)
at
java.base/java.lang.module.Configuration.<init>(Configuration.java:141)
at
java.base/java.lang.module.Configuration.resolve(Configuration.java:424)
at
java.base/java.lang.module.Configuration.resolve(Configuration.java:256)
at eg.UnPatchable.main(UnPatchable.java:21)
----
Or the same failure but with a different message:
----
$ java -ea --module-path lib src\eg\UnPatchable.java
Error occurred during initialization of boot layer
java.lang.module.ResolutionException: Module gradle.api contains
package
org.xml.sax, module java.xml exports package org.xml.sax to gradle.api
----
What the subject of this email is about, is that even attempting to
patch the Gradle API jar does not fix the split package problem:
----
$ java -ea --module-path lib --add-modules ALL-MODULE-PATH \
--patch-module java.xml=lib\gradle-api-6.0-rc-2.jar \
--patch-module jdk.xml.dom=lib\gradle-api-6.0-rc-2.jar; \
--patch-module gradle.api=com.github.javaparser.symbolsolver.core
src\eg\UnPatchable.java
Error occurred during initialization of boot layer
java.lang.module.ResolutionException: Modules gradle.api and java.xml
export
package javax.xml.validation to module
com.github.javaparser.symbolsolver.core
----
Those errors are reproducible with these steps:
1. Download, unzip and cd into the attached example project [3]
2. From a terminal, enter the commands I entered in the snippets above
I'm hoping that it's not as bad as I think it is. Hopefully, it's
nothing worse than I just haven't learned what the right command is to
fix this.
Please, can jigsaw-dev shed some light on this so far intractable
problem? TIA.
----
[1] http://bit.ly/014298
[2] http://bit.ly/mrJar
[3] http://bit.ly/014309zip
