Remi,

Your command line is questionable for putting output/modules on both -d and --module-path. You don't need it on --module-path. When compiling modules, javac will automatically look in the output directory for classes for the module(s) being compiled.

Does your module source path contain source code for java.base? If so, it will only use that definition of java.base, and not anything in the paths given with --patch-module.

-- Jon


On 11/2/16 7:14 AM, Remi Forax wrote:
Hi Jon, hi all,

When i try to compile a module with --module-source-path that uses a patched 
class (with --patch-module),
it fails.

With:
javac --module-source-path src \
       -d output/modules/ \
       --patch-module java.base=output/classes \
       --module-path output/modules \
       $(find src/org.hibernate.jpa/ -name "*.java")

it seems that javac tries to find the source of the patched module (here 
java.base) in the module-source-path,
so it get this error

error: cannot find module: java.base
1 error

I believe this is a bug.

Step to reproduce it:
git clone g...@github.com:forax/access-broker.git
and uncomment the lines that uses --module-source-path and --patch-module 
java.base=output/classes in the build.sh.

regards,
Rémi

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