diff --git a/bundles/org.eclipse.osgi.tests/src/org/eclipse/osgi/tests/bundles/EquinoxBundleAdaptTests.java b/bundles/org.eclipse.osgi.tests/src/org/eclipse/osgi/tests/bundles/EquinoxBundleAdaptTests.java
index 9aba6c32d3f..2e21cf27144 100644
--- a/bundles/org.eclipse.osgi.tests/src/org/eclipse/osgi/tests/bundles/EquinoxBundleAdaptTests.java
+++ b/bundles/org.eclipse.osgi.tests/src/org/eclipse/osgi/tests/bundles/EquinoxBundleAdaptTests.java
@@ -24,6 +24,8 @@
 import org.eclipse.osgi.container.Module;
 import org.eclipse.osgi.internal.framework.EquinoxBundle;
 import org.eclipse.osgi.signedcontent.SignedContent;
+import org.eclipse.osgi.tests.securityadmin.SecurityManagerTests;
+import org.junit.Assume;
 import org.junit.Test;
 import org.osgi.framework.Bundle;
 import org.osgi.framework.FrameworkUtil;
@@ -40,6 +42,8 @@ public void testAdapt_Module() throws Exception {
 	@Test
 	@SuppressWarnings({ "deprecation", "removal" }) // SecurityManager
 	public void testAdapt_ProtectionDomain() throws Exception {
+		Assume.assumeTrue("Security-Manager is disallowed", SecurityManagerTests.isSecurityManagerAllowed());
+
 		Bundle bundle = installer.installBundle("test");
 		SecurityManager previousSM = System.getSecurityManager();
 		try {
diff --git a/bundles/org.eclipse.osgi.tests/src/org/eclipse/osgi/tests/bundles/SystemBundleTests.java b/bundles/org.eclipse.osgi.tests/src/org/eclipse/osgi/tests/bundles/SystemBundleTests.java
index c639b250574..96eadd27109 100644
--- a/bundles/org.eclipse.osgi.tests/src/org/eclipse/osgi/tests/bundles/SystemBundleTests.java
+++ b/bundles/org.eclipse.osgi.tests/src/org/eclipse/osgi/tests/bundles/SystemBundleTests.java
@@ -92,7 +92,9 @@
 import org.eclipse.osgi.storage.url.reference.Handler;
 import org.eclipse.osgi.tests.OSGiTestsActivator;
 import org.eclipse.osgi.tests.security.BaseSecurityTest;
+import org.eclipse.osgi.tests.securityadmin.SecurityManagerTests;
 import org.junit.Assert;
+import org.junit.Assume;
 import org.junit.Ignore;
 import org.junit.Test;
 import org.osgi.framework.Bundle;
@@ -1427,6 +1429,8 @@ public void testBug432632() throws BundleException, IOException {
 
 	@Test
 	public void testDynamicSecurityManager() throws BundleException {
+		Assume.assumeTrue("Security-Manager is disallowed", SecurityManagerTests.isSecurityManagerAllowed());
+
 		SecurityManager sm = System.getSecurityManager();
 		assertNull("SecurityManager must be null to test.", sm);
 		try {
@@ -3267,16 +3271,21 @@ public void testDeleteBundleFile() throws IOException, BundleException {
 
 		Map<String, String> launchProps = new HashMap<>();
 		launchProps.put(Constants.FRAMEWORK_STORAGE, config.getAbsolutePath());
-		SecurityManager sm = new SecurityManager() {
-			public void checkPermission(Permission perm) {
-				// do nothing;
-			}
-		};
-		System.setSecurityManager(sm);
+		boolean unsetSecurityManager = false;
+		if (SecurityManagerTests.isSecurityManagerAllowed()) {
+			unsetSecurityManager = true;
+			System.setSecurityManager(new SecurityManager() {
+				public void checkPermission(Permission perm) {
+					// do nothing;
+				}
+			});
+		}
 		try {
 			equinox = new Equinox(Collections.singletonMap(Constants.FRAMEWORK_STORAGE, config.getAbsolutePath()));
 		} finally {
-			System.setSecurityManager(null);
+			if (unsetSecurityManager) {
+				System.setSecurityManager(null);
+			}
 		}
 		equinox.start();
 		stop(equinox);
diff --git a/bundles/org.eclipse.osgi.tests/src/org/eclipse/osgi/tests/securityadmin/SecurityAdminUnitTests.java b/bundles/org.eclipse.osgi.tests/src/org/eclipse/osgi/tests/securityadmin/SecurityAdminUnitTests.java
index 5a5703cdf7a..9bf42aaa1ff 100644
--- a/bundles/org.eclipse.osgi.tests/src/org/eclipse/osgi/tests/securityadmin/SecurityAdminUnitTests.java
+++ b/bundles/org.eclipse.osgi.tests/src/org/eclipse/osgi/tests/securityadmin/SecurityAdminUnitTests.java
@@ -40,6 +40,8 @@
 import org.eclipse.osgi.launch.Equinox;
 import org.eclipse.osgi.tests.OSGiTestsActivator;
 import org.eclipse.osgi.tests.bundles.AbstractBundleTests;
+import org.junit.Assume;
+import org.junit.BeforeClass;
 import org.junit.Test;
 import org.osgi.framework.Bundle;
 import org.osgi.framework.BundleException;
@@ -108,6 +110,11 @@ public class SecurityAdminUnitTests extends AbstractBundleTests {
 	private ConditionalPermissionAdmin cpa;
 	private PermissionAdmin pa;
 
+	@BeforeClass
+	public static void setupClass() {
+		Assume.assumeTrue("Security-Manager is disallowed", SecurityManagerTests.isSecurityManagerAllowed());
+	}
+
 	@Override
 	public void setUp() throws Exception {
 		previousPolicy = Policy.getPolicy();
diff --git a/bundles/org.eclipse.osgi.tests/src/org/eclipse/osgi/tests/securityadmin/SecurityManagerTests.java b/bundles/org.eclipse.osgi.tests/src/org/eclipse/osgi/tests/securityadmin/SecurityManagerTests.java
index 1dbb9d04b74..dc2fbf35dae 100644
--- a/bundles/org.eclipse.osgi.tests/src/org/eclipse/osgi/tests/securityadmin/SecurityManagerTests.java
+++ b/bundles/org.eclipse.osgi.tests/src/org/eclipse/osgi/tests/securityadmin/SecurityManagerTests.java
@@ -38,6 +38,8 @@
 import org.eclipse.osgi.tests.OSGiTestsActivator;
 import org.eclipse.osgi.tests.bundles.AbstractBundleTests;
 import org.junit.Assert;
+import org.junit.Assume;
+import org.junit.BeforeClass;
 import org.junit.Test;
 import org.osgi.framework.Bundle;
 import org.osgi.framework.BundleContext;
@@ -81,9 +83,13 @@ public class SecurityManagerTests extends AbstractBundleTests {
 			PackagePermission.class.getName(), "org.osgi.framework", "import"); //$NON-NLS-1$ //$NON-NLS-2$
 	private Policy previousPolicy;
 
+	@BeforeClass
+	public static void setupClass() {
+		Assume.assumeTrue("Security-Manager is disallowed", SecurityManagerTests.isSecurityManagerAllowed());
+	}
+
 	@Override
 	public void setUp() throws Exception {
-		assertNull("Cannot test with security manager set", getSecurityManager());
 		previousPolicy = Policy.getPolicy();
 		final Permission allPermission = new AllPermission();
 		final PermissionCollection allPermissions = new PermissionCollection() {
@@ -721,4 +727,21 @@ public Map<String, Object> getAttributes() {
 			}
 		}
 	}
+
+	public static boolean isSecurityManagerAllowed() {
+		SecurityManager original = System.getSecurityManager();
+		try { // Try to set a dummy to provoke an UnsupportedOperationException if disallowed
+			System.setSecurityManager(new SecurityManager() {
+				@Override
+				public void checkPermission(Permission perm) {
+					// Permit everything
+				}
+			});
+			System.setSecurityManager(original); // restore original
+			return true;
+		} catch (UnsupportedOperationException e) {
+			return false; // security-manager is not allowed
+		}
+	}
+
 }