[GitHub] [arrow] hashhar commented on a diff in pull request #12941: ARROW-15755: [Java] Support Java 17

[GitBox <gi...@apache.org>]

hashhar commented on code in PR #12941:
URL: https://github.com/apache/arrow/pull/12941#discussion_r856232426


##########
java/pom.xml:
##########
@@ -777,10 +781,40 @@
             <groupId>org.apache.maven.plugins</groupId>
             <artifactId>maven-compiler-plugin</artifactId>
             <configuration>
-              <fork>true</fork>
+              <source>8</source>
+              <target>8</target>
+              <encoding>UTF-8</encoding>
               <compilerArgs combine.children="append">
-                <arg>-J-Xbootclasspath/p:${settings.localRepository}/com/google/errorprone/javac/${errorprone.javac.version}/javac-${errorprone.javac.version}.jar</arg>
+                <arg>-XDcompilePolicy=simple</arg>
+                <arg>
+                  -Xplugin:ErrorProne \
+                  -XepExcludedPaths:.*/(target/generated-sources)/.*
+                </arg>
+                <arg>-J--add-exports=jdk.compiler/com.sun.tools.javac.api=ALL-UNNAMED</arg>
+                <arg>-J--add-exports=jdk.compiler/com.sun.tools.javac.file=ALL-UNNAMED</arg>
+                <arg>-J--add-exports=jdk.compiler/com.sun.tools.javac.main=ALL-UNNAMED</arg>
+                <arg>-J--add-exports=jdk.compiler/com.sun.tools.javac.model=ALL-UNNAMED</arg>
+                <arg>-J--add-exports=jdk.compiler/com.sun.tools.javac.parser=ALL-UNNAMED</arg>
+                <arg>-J--add-exports=jdk.compiler/com.sun.tools.javac.processing=ALL-UNNAMED</arg>
+                <arg>-J--add-exports=jdk.compiler/com.sun.tools.javac.tree=ALL-UNNAMED</arg>
+                <arg>-J--add-exports=jdk.compiler/com.sun.tools.javac.util=ALL-UNNAMED</arg>
+                <arg>-J--add-opens=jdk.compiler/com.sun.tools.javac.code=ALL-UNNAMED</arg>
+                <arg>-J--add-opens=jdk.compiler/com.sun.tools.javac.comp=ALL-UNNAMED</arg>

Review Comment:
   Does this change mean that consumers of this library will still need to pass `add-opens` to get Arrow to work with JDK 17? (I think so since you are just making the compilation work with these arguments, no code is changed to not use those modules?).



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