diff --git a/org.eclipse.jdt.debug/META-INF/MANIFEST.MF b/org.eclipse.jdt.debug/META-INF/MANIFEST.MF
index c7bc713a22..5ef560aea2 100644
--- a/org.eclipse.jdt.debug/META-INF/MANIFEST.MF
+++ b/org.eclipse.jdt.debug/META-INF/MANIFEST.MF
@@ -2,7 +2,7 @@ Manifest-Version: 1.0
 Bundle-ManifestVersion: 2
 Bundle-Name: %pluginName
 Bundle-SymbolicName: org.eclipse.jdt.debug; singleton:=true
-Bundle-Version: 3.26.0.qualifier
+Bundle-Version: 3.26.100.qualifier
 Bundle-ClassPath: jdimodel.jar
 Bundle-Activator: org.eclipse.jdt.internal.debug.core.JDIDebugPlugin
 Bundle-Vendor: %providerName
diff --git a/org.eclipse.jdt.debug/model/org/eclipse/jdt/internal/debug/core/model/JDIThread.java b/org.eclipse.jdt.debug/model/org/eclipse/jdt/internal/debug/core/model/JDIThread.java
index d607ff7141..7c1c59621b 100644
--- a/org.eclipse.jdt.debug/model/org/eclipse/jdt/internal/debug/core/model/JDIThread.java
+++ b/org.eclipse.jdt.debug/model/org/eclipse/jdt/internal/debug/core/model/JDIThread.java
@@ -113,6 +113,12 @@ public class JDIThread extends JDIDebugElement implements IJavaThread {
 	 */
 	private static final String MAIN_THREAD_GROUP = "main"; //$NON-NLS-1$
 
+	/**
+	 * Constant for the name of the {@code RMI Runtime} thread group. See internal JDK method {@code sun.rmi.runtime.RuntimeUtil.newUserThread()},
+	 * which uses: {@code sun.rmi.runtime.RuntimeUtil.userThreadGroup}
+	 */
+	private static final String RMI_RUNTIME_THREAD_GROUP = "RMI Runtime"; //$NON-NLS-1$
+
 	/**
 	 * @since 3.5
 	 */
@@ -565,7 +571,7 @@ protected void determineIfSystemThread() throws DebugException {
 				// #targetRequestFailed will throw an exception
 				return;
 			}
-			if (tgn != null && tgn.equals(MAIN_THREAD_GROUP)) {
+			if (MAIN_THREAD_GROUP.equals(tgn) || RMI_RUNTIME_THREAD_GROUP.equals(tgn)) {
 				fIsSystemThread = false;
 				break;
 			}