Use daemon JVM to run Maven process in tests

Author: jjohannes

.github/workflows/release.yml

@@ -11,7 +11,7 @@ jobs:
       - uses: actions/setup-java@v5
         with:
           distribution: temurin
-          java-version: 17
+          java-version: 17.0.16
       - uses: gradle/actions/setup-gradle@v5
       - run: "./gradlew publishAggregationToCentralPortal -Psign=true"
         env:

gradle/gradle-daemon-jvm.properties

@@ -0,0 +1,2 @@
+# needs to be 17.0.16
+toolchainVersion=17

src/test/java/org/gradlex/maven/gmm/test/GMMMavenPluginTest.java

@@ -327,7 +327,8 @@ private void assertExpectedGMM(String name) {
 
     private static void exec(String command, File workDir) {
         try {
-            Process proc = Runtime.getRuntime().exec(command, null, workDir);
+            String[] javaHome = {"JAVA_HOME=" + System.getProperty("java.home")};
+            Process proc = Runtime.getRuntime().exec(command, javaHome, workDir);
             BufferedReader stdInput = new BufferedReader(new InputStreamReader(proc.getInputStream()));
             String s;
             while ((s = stdInput.readLine()) != null) {