Minor: fix maven IC tests with custom local repository

libraries/tools/kotlin-maven-plugin-test/pom.xml

@@ -93,6 +93,10 @@
                                             <name>kotlin.version</name>
                                             <value>${project.version}</value>
                                         </property>
+                                        <property>
+                                            <name>maven.repo.local</name>
+                                            <value>${maven.repo.local}</value>
+                                        </property>
                                     </systemProperties>
                                 </configuration>
                             </execution>

libraries/tools/kotlin-maven-plugin-test/src/test/java/org.jetbrains.kotlin.maven/IncrementalCompilationIT.java

@@ -1,10 +1,9 @@
 package org.jetbrains.kotlin.maven;
 
 import org.junit.Test;
-
 import java.io.File;
 
-public class IncrementalCompilationIT {
+public class IncrementalCompilationIT extends MavenITBase {
     @Test
     public void testSimpleCompile() throws Exception {
         MavenProject project = new MavenProject("kotlinSimple");

libraries/tools/kotlin-maven-plugin-test/src/test/java/org.jetbrains.kotlin.maven/MavenITBase.java

@@ -0,0 +1,15 @@
+package org.jetbrains.kotlin.maven;
+
+import org.junit.Rule;
+import org.junit.rules.TestRule;
+import org.junit.rules.TestWatcher;
+import org.junit.runner.Description;
+
+public abstract class MavenITBase {
+    @Rule
+    public TestRule watcher = new TestWatcher() {
+        protected void starting(Description description) {
+            System.out.println("Running test: " + description.getDisplayName());
+        }
+    };
+}

libraries/tools/kotlin-maven-plugin-test/src/test/java/org.jetbrains.kotlin.maven/MavenProject.java

@@ -2,7 +2,9 @@ package org.jetbrains.kotlin.maven;
 
 import com.intellij.openapi.util.io.FileUtil;
 import kotlin.io.TextStreamsKt;
+import kotlin.text.StringsKt;
 import org.jetbrains.annotations.NotNull;
+import org.jetbrains.annotations.Nullable;
 
 import java.io.*;
 import java.util.*;
@@ -66,8 +68,19 @@ class MavenProject {
         cmd.add("mvn");
         cmd.add("-Dkotlin.compiler.incremental.log.level=info");
 
-        String kotlinVersion = getNotNullSystemProperty("kotlin.version");
-        cmd.add("-Dkotlin.version=" + kotlinVersion);
+        String kotlinVersionProperty = "kotlin.version";
+        cmd.add("-D" + kotlinVersionProperty + "=" + getNotNullSystemProperty(kotlinVersionProperty));
+
+        String mavenRepoLocalProperty = "maven.repo.local";
+        String localRepoPath = System.getProperty(mavenRepoLocalProperty);
+        try {
+            if (localRepoPath != null && !StringsKt.isBlank(localRepoPath) && new File(localRepoPath).isDirectory()) {
+                cmd.add("-D" + mavenRepoLocalProperty + "=" + localRepoPath);
+            }
+        }
+        catch (SecurityException e) {
+            e.printStackTrace();
+        }
 
         cmd.addAll(Arrays.asList(args));