On 05/09/2017 14:08, KUBOTA Yuji wrote:
My following example program shows that automatic module can't read
exported package by explicit module.
$ /jdk-9/bin/jar -d --file mlibs/org.astro.jar
org.astro jar:file:///jigsaw-sample/mlibs/org.astro.jar/!module-info.class
exports org.astro
requires java.base mandated
$ /jdk-9/bin/jar -d --file libs/com.greetings.jar
No module descriptor found. Derived automatic module.
com.greetings automatic
requires java.base mandated
contains com.greetings
$ /jdk-9/bin/java -p mlibs:libs -m com.greetings/com.greetings.Main
Exception in thread "main" java.lang.NoClassDefFoundError: org/astro/World
at com.greetings/com.greetings.Main.main(Main.java:7)
Caused by: java.lang.ClassNotFoundException: org.astro.World
at
java.base/jdk.internal.loader.BuiltinClassLoader.loadClass(BuiltinClassLoader.java:582)
at
java.base/jdk.internal.loader.ClassLoaders$AppClassLoader.loadClass(ClassLoaders.java:185)
at java.base/java.lang.ClassLoader.loadClass(ClassLoader.java:496)
... 1 more
The issue here is that org.astro is not resolved because no module
requires org.astro. If you add `--add-modules org.astro` to the command
line then it will ensure that this module is resolved and you should see
that com.greetings reads it.
-Alan
