How to tell eclipse to add-exports when compiling

Question

Is it possible to tell eclipse to add the following command line option: --add-exports jdk.compiler/com.sun.tools.javac.tree=ALL-UNNAMED when compiling.

I think it may also be needed when running tests.

Is it also possible to remove this message:

Note that I tried to add those to the VM options of one of my unit tests but that did not work.

Answer 1

1. Go to Project > Properties: Java Build Path, tab Libraries
2. Select the JRE > Is modular node and click Edit...
3. Go to the tab Details
4. In the Added exports section click Add...
5. Enter the following:
   • Source module: jdk.compiler
   • Package: com.sun.tools.javac.tree