[CLI] K2JVMCompilerArguments: Model modulePath as Array<String>

to allow interning individual file-path arguments on the IDE

KTIJ-24976

compiler/cli/cli-common/gen/org/jetbrains/kotlin/cli/common/arguments/K2JVMCompilerArgumentsCopyGenerated.kt

@@ -33,7 +33,7 @@ fun copyK2JVMCompilerArguments(from: K2JVMCompilerArguments, to: K2JVMCompilerAr
     to.friendPaths = from.friendPaths?.copyOf()
     to.includeRuntime = from.includeRuntime
     to.inheritMultifileParts = from.inheritMultifileParts
-    to.javaModulePath = from.javaModulePath
+    to.javaModulePath = from.javaModulePath?.copyOf()
     to.javaPackagePrefix = from.javaPackagePrefix
     to.javaParameters = from.javaParameters
     to.javaSourceRoots = from.javaSourceRoots?.copyOf()

compiler/cli/cli-common/src/org/jetbrains/kotlin/cli/common/arguments/K2JVMCompilerArguments.kt

@@ -210,8 +210,13 @@ class K2JVMCompilerArguments : CommonCompilerArguments() {
             field = value
         }
 
-    @Argument(value = "-Xmodule-path", valueDescription = "<path>", description = "Paths where to find Java 9+ modules")
+    @Argument(
-    var javaModulePath: String? = null
+        value = "-Xmodule-path",
+        valueDescription = "<path>",
+        description = "Paths where to find Java 9+ modules",
+        delimiter = Argument.Delimiters.pathSeparator
+    )
+    var javaModulePath: Array<String>? = null
         set(value) {
             checkFrozen()
             field = if (value.isNullOrEmpty()) null else value

compiler/cli/src/org/jetbrains/kotlin/cli/jvm/jvmArguments.kt

@@ -173,7 +173,7 @@ fun CompilerConfiguration.configureJdkHome(arguments: K2JVMCompilerArguments): B
 }
 
 fun CompilerConfiguration.configureJavaModulesContentRoots(arguments: K2JVMCompilerArguments) {
-    for (modularRoot in arguments.javaModulePath?.split(File.pathSeparatorChar).orEmpty()) {
+    for (modularRoot in arguments.javaModulePath.orEmpty()) {
         add(CLIConfigurationKeys.CONTENT_ROOTS, JvmModulePathRoot(File(modularRoot)))
     }
 }

compiler/fir/modularized-tests/tests/org/jetbrains/kotlin/fir/AbstractFrontendModularizedTest.kt

@@ -77,7 +77,7 @@ abstract class AbstractFrontendModularizedTest : AbstractModularizedTest() {
         if (originalArguments != null) {
             configuration.put(JVMConfigurationKeys.NO_JDK, originalArguments.noJdk)
 
-            for (modularRoot in originalArguments.javaModulePath?.split(File.pathSeparatorChar).orEmpty()) {
+            for (modularRoot in originalArguments.javaModulePath.orEmpty()) {
                 configuration.add(CLIConfigurationKeys.CONTENT_ROOTS, JvmModulePathRoot(modularRoot.fixPath()))
             }
 

libraries/tools/kotlin-maven-plugin/src/main/java/org/jetbrains/kotlin/maven/K2JVMCompileMojo.java

@@ -165,13 +165,14 @@ public class K2JVMCompileMojo extends KotlinCompileMojoBase<K2JVMCompilerArgumen
 
         if (!classpathList.isEmpty()) {
             String classPathString = join(classpathList, File.pathSeparator);
+            String[] classPath = classpathList.toArray(new String[0]);
             if (isJava9Module(sourceRoots)) {
                 getLog().debug("Module path: " + classPathString);
-                arguments.setJavaModulePath(classPathString);
+                arguments.setJavaModulePath(classPath);
             }
             else {
                 getLog().debug("Classpath: " + classPathString);
-                arguments.setClasspath(classpathList.toArray(String[]::new));
+                arguments.setClasspath(classPath);
             }
         }