Michael Musgrove created MCOMPILER-279:
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Summary: Passing multiple --add-exports args to the compilerArg is
not supported
Key: MCOMPILER-279
URL: https://issues.apache.org/jira/browse/MCOMPILER-279
Project: Maven Compiler Plugin
Issue Type: Bug
Affects Versions: 3.5.1
Reporter: Michael Musgrove
Attachments: jdk9-test.tar
This plugin collapses multiple compiler args with the same name into a single
one.
An example of where this is an issue is when exporting extra packages from a
Java SE 9 module:
Suppose we want to export two packages (package1 and package2) from a module
called FROM-MOD to the OTHER-MOD module. The syntax for this is:
{code}
javac ... --add-exports FROM-MOD/package1=OTHER-MOD --add-exports
FROM-MOD/package2=OTHER-MOD
{code}
and the plugin configuration for this is:
{code:xml}
<configuration>
...
<compilerArgs>
<arg>--add-exports</arg>
<arg>FROM-MOD/package1=OTHER-MOD</arg>
<arg>--add-exports</arg>
<arg>FROM-MOD/package2=OTHER-MOD></arg>
<compilerArgs>
</configuration>
{code}
which produces:
{code}
javac ... --add-exports FROM-MOD/package1=OTHER-MOD FROM-MOD/package2=OTHER-MOD
{code}
Notice the missing --add-exports for the second export so the compiler
complains with the error:
bq. Caused by: java.lang.IllegalArgumentException: invalid flag:
java.corba/com.sun.corba.se.spi.ior=ALL-UNNAMED
A concrete but basic example maven project is attached.
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