diff --git a/org.eclipse.jdt.ls.tests/src/org/eclipse/jdt/ls/core/internal/javafx/JavaFXTest.java b/org.eclipse.jdt.ls.tests/src/org/eclipse/jdt/ls/core/internal/javafx/JavaFXTest.java
index 7eadeda96d..70bf3808d3 100644
--- a/org.eclipse.jdt.ls.tests/src/org/eclipse/jdt/ls/core/internal/javafx/JavaFXTest.java
+++ b/org.eclipse.jdt.ls.tests/src/org/eclipse/jdt/ls/core/internal/javafx/JavaFXTest.java
@@ -37,21 +37,20 @@
 
 public class JavaFXTest extends AbstractProjectsManagerBasedTest {
 
-	private static final String VERSION_1_8 = "1.8";
 	private static final String JAVA_SE_8 = "JavaSE-1.8";
 	private static final String JAVA_SE_17 = "JavaSE-17";
 
 	/**
-	 * Test musts run with the -Djdkfx8.home=/path/to/jdk8+fx System property, or it
-	 * will be skipped.
+	 * Test requires Java 8 in toolchains.xml
 	 */
 	@Test
 	public void testJavaFX() throws Exception {
 		IVMInstall defaultJRE = JavaRuntime.getDefaultVMInstall();
 		String name = "java8fx";
 		IProject project = null;
+		IExecutionEnvironment java8env = JVMConfigurator.getExecutionEnvironment(JAVA_SE_8);
+		IVMInstall oldJavaVm = java8env.getDefaultVM();
 		try {
-			IExecutionEnvironment java8env = JVMConfigurator.getExecutionEnvironment(JAVA_SE_8);
 			IVMInstall java8vm = null;
 			IVMInstall java8DefaultVm = null;
 			if (java8env != null) {
@@ -89,6 +88,7 @@ public void testJavaFX() throws Exception {
 			if (environment != null) {
 				environment.setDefaultVM(defaultJRE);
 			}
+			java8env.setDefaultVM(oldJavaVm);
 		}
 	}
 
diff --git a/org.eclipse.jdt.ls.tests/src/org/eclipse/jdt/ls/core/internal/managers/AbstractProjectsManagerBasedTest.java b/org.eclipse.jdt.ls.tests/src/org/eclipse/jdt/ls/core/internal/managers/AbstractProjectsManagerBasedTest.java
index 20dc988d73..1010e989dd 100644
--- a/org.eclipse.jdt.ls.tests/src/org/eclipse/jdt/ls/core/internal/managers/AbstractProjectsManagerBasedTest.java
+++ b/org.eclipse.jdt.ls.tests/src/org/eclipse/jdt/ls/core/internal/managers/AbstractProjectsManagerBasedTest.java
@@ -67,6 +67,11 @@
 import org.eclipse.jdt.core.WorkingCopyOwner;
 import org.eclipse.jdt.core.formatter.DefaultCodeFormatterConstants;
 import org.eclipse.jdt.core.manipulation.CoreASTProvider;
+import org.eclipse.jdt.launching.IVMInstall;
+import org.eclipse.jdt.launching.IVMInstallType;
+import org.eclipse.jdt.launching.JavaRuntime;
+import org.eclipse.jdt.launching.environments.IExecutionEnvironment;
+import org.eclipse.jdt.launching.environments.IExecutionEnvironmentsManager;
 import org.eclipse.jdt.ls.core.internal.DocumentAdapter;
 import org.eclipse.jdt.ls.core.internal.JDTUtils;
 import org.eclipse.jdt.ls.core.internal.JavaClientConnection.JavaLanguageClient;
@@ -76,6 +81,7 @@
 import org.eclipse.jdt.ls.core.internal.ProjectUtils;
 import org.eclipse.jdt.ls.core.internal.ResourceUtils;
 import org.eclipse.jdt.ls.core.internal.SimpleLogListener;
+import org.eclipse.jdt.ls.core.internal.TestVMType;
 import org.eclipse.jdt.ls.core.internal.WorkspaceHelper;
 import org.eclipse.jdt.ls.core.internal.handlers.BundleUtils;
 import org.eclipse.jdt.ls.core.internal.handlers.ProgressReporterManager;
@@ -137,6 +143,22 @@ public Object invoke(Object proxy, Method method, Object[] args) throws Throwabl
 	public static void initJVMs() {
 		JobHelpers.waitForLookupJDKToolchainsJob(600000);
 		CorePlugin.publishedGradleVersions().getVersions();
+		// see https://github.com/eclipse-jdtls/eclipse.jdt.ls/issues/3261
+		IVMInstallType[] vmInstallTypes = JavaRuntime.getVMInstallTypes();
+		for (IVMInstallType vmInstallType : vmInstallTypes) {
+			if (vmInstallType instanceof TestVMType) {
+				for (IVMInstall vm : vmInstallType.getVMInstalls()) {
+					IExecutionEnvironmentsManager manager = JavaRuntime.getExecutionEnvironmentsManager();
+					IExecutionEnvironment[] environments = manager.getExecutionEnvironments();
+					for (IExecutionEnvironment environment : environments) {
+						if (environment.isStrictlyCompatible(vm)) {
+							environment.setDefaultVM(vm);
+							break;
+						}
+					}
+				}
+			}
+		}
 	}
 
 	@Before