diff --git a/org.eclipse.jdt.ls.core/src/org/eclipse/jdt/ls/core/internal/managers/GradleUtils.java b/org.eclipse.jdt.ls.core/src/org/eclipse/jdt/ls/core/internal/managers/GradleUtils.java
index c7f86ccf82..76c8245e88 100644
--- a/org.eclipse.jdt.ls.core/src/org/eclipse/jdt/ls/core/internal/managers/GradleUtils.java
+++ b/org.eclipse.jdt.ls.core/src/org/eclipse/jdt/ls/core/internal/managers/GradleUtils.java
@@ -28,9 +28,9 @@
 import java.util.HashMap;
 import java.util.List;
 import java.util.Map;
+import java.util.Map.Entry;
 import java.util.Optional;
 import java.util.Set;
-import java.util.Map.Entry;
 import java.util.stream.Stream;
 
 import org.apache.commons.lang3.StringUtils;
@@ -218,7 +218,7 @@ private static File getGradleInitScriptTempFile(String scriptPath) {
 	 * <ul>
 	 * @param initScript the init script file.
 	 * @param checksum the expected checksum of the file.
-	 * 
+	 *
 	 * @throws IOException
 	 * @throws NoSuchAlgorithmException
 	 */
@@ -260,7 +260,7 @@ public static Map<String, String> parseProcessorOptions(List<Object> compilerArg
 			return Collections.emptyMap();
 		}
 		Map<String, String> options = new HashMap<>();
-	
+
 		for(Object arg : compilerArgs) {
 			String argString = String.valueOf(arg);
 			if (argString.startsWith("-A")) {
@@ -338,11 +338,12 @@ public static File getJdkToLaunchDaemon(String highestJavaVersion) {
 	 * The results are returned as map, where key is the major version and value is the file instance of
 	 * the installation.
 	 */
-	private static Map<String, File> getAllVmInstalls() {
+	public static Map<String, File> getAllVmInstalls() {
 		List<IVMInstall> vmList = Stream.of(JavaRuntime.getVMInstallTypes())
-						.map(IVMInstallType::getVMInstalls)
-						.flatMap(Arrays::stream)
-						.toList();
+				// https://github.com/eclipse-jdtls/eclipse-jdt-core-incubator/issues/609
+				.filter(t -> (t.getName() != null && !t.getName().startsWith("TestVMInstall-")))
+				.map(IVMInstallType::getVMInstalls)
+				.flatMap(Arrays::stream).toList();
 		Map<String, File> vmInstalls = new HashMap<>();
 		for (IVMInstall vmInstall : vmList) {
 			if (vmInstall instanceof AbstractVMInstall vm) {
diff --git a/org.eclipse.jdt.ls.tests/projects/gradle/kradle/build.gradle.kts b/org.eclipse.jdt.ls.tests/projects/gradle/kradle/build.gradle.kts
index ec2a3f55a2..45c4e43798 100644
--- a/org.eclipse.jdt.ls.tests/projects/gradle/kradle/build.gradle.kts
+++ b/org.eclipse.jdt.ls.tests/projects/gradle/kradle/build.gradle.kts
@@ -15,9 +15,7 @@ plugins {
 }
 
 repositories {
-    // Use jcenter for resolving dependencies.
-    // You can declare any Maven/Ivy/file repository here.
-    jcenter()
+    mavenCentral()
 }
 
 dependencies {
diff --git a/org.eclipse.jdt.ls.tests/src/org/eclipse/jdt/ls/core/internal/managers/GradleUtilsTest.java b/org.eclipse.jdt.ls.tests/src/org/eclipse/jdt/ls/core/internal/managers/GradleUtilsTest.java
index 8eab0ed87a..6e2077dc8b 100644
--- a/org.eclipse.jdt.ls.tests/src/org/eclipse/jdt/ls/core/internal/managers/GradleUtilsTest.java
+++ b/org.eclipse.jdt.ls.tests/src/org/eclipse/jdt/ls/core/internal/managers/GradleUtilsTest.java
@@ -16,6 +16,7 @@
 import static org.junit.Assert.assertTrue;
 
 import java.io.File;
+import java.util.Map;
 
 import org.junit.Test;
 
@@ -28,7 +29,10 @@ public void testGetJdkToLaunchDaemon() {
 
 	@Test
 	public void testGetMajorJavaVersion() {
-		File javaHome = GradleUtils.getJdkToLaunchDaemon("10");
-		assertTrue("javaHome=" + javaHome.getAbsolutePath(), javaHome.getAbsolutePath().contains("fakejdk" + File.separator + "10"));
+		Map<String, File> vmInstalls = GradleUtils.getAllVmInstalls();
+		vmInstalls.forEach((k, v) -> {
+			File javaHome = GradleUtils.getJdkToLaunchDaemon(k);
+			assertTrue("javaHome=" + javaHome.getAbsolutePath(), javaHome.equals(v));
+		});
 	}
 }