diff --git a/runtime/bundles/org.eclipse.e4.core.di/src/org/eclipse/e4/core/internal/di/WeakRefList.java b/runtime/bundles/org.eclipse.e4.core.di/src/org/eclipse/e4/core/internal/di/WeakRefList.java
deleted file mode 100644
index 1ba8c893728..00000000000
--- a/runtime/bundles/org.eclipse.e4.core.di/src/org/eclipse/e4/core/internal/di/WeakRefList.java
+++ /dev/null
@@ -1,80 +0,0 @@
-/*******************************************************************************
- * Copyright (c) 2009, 2010 IBM Corporation and others.
- *
- * This program and the accompanying materials
- * are made available under the terms of the Eclipse Public License 2.0
- * which accompanies this distribution, and is available at
- * https://www.eclipse.org/legal/epl-2.0/
- *
- * SPDX-License-Identifier: EPL-2.0
- *
- * Contributors:
- *     IBM Corporation - initial API and implementation
- *******************************************************************************/
-package org.eclipse.e4.core.internal.di;
-
-import java.lang.ref.WeakReference;
-import java.util.*;
-
-/**
- * A list that holds weak references to the objects.
- */
-public class WeakRefList {
-
-	private final List<WeakReference<?>> userObjects;
-
-	public WeakRefList(int initialSize) {
-		userObjects = new ArrayList<>(initialSize);
-	}
-
-	public Object[] getSafeCopy() {
-		Object[] result;
-		int pos = 0;
-		synchronized (userObjects) {
-			result = new Object[userObjects.size()];
-			for (Iterator<WeakReference<?>> i = userObjects.iterator(); i.hasNext();) {
-				WeakReference<?> ref = i.next();
-				Object userObject = ref.get();
-				if (userObject == null) {
-					// user object got GCed, clean up refs for future
-					i.remove();
-					continue;
-				}
-				result[pos] = userObject;
-				pos++;
-			}
-		}
-		if (pos == result.length) {
-			return result;
-		}
-		// reallocate the array
-		Object[] tmp = new Object[pos];
-		System.arraycopy(result, 0, tmp, 0, pos);
-		return tmp;
-	}
-
-	public void add(Object object) {
-		WeakReference<?> ref = new WeakReference<>(object);
-		synchronized (userObjects) {
-			userObjects.add(ref);
-		}
-	}
-
-	public boolean remove(Object object) {
-		synchronized (userObjects) {
-			for (Iterator<WeakReference<?>> i = userObjects.iterator(); i.hasNext();) {
-				WeakReference<?> ref = i.next();
-				Object userObject = ref.get();
-				if (userObject == null) {
-					i.remove();
-					continue;
-				}
-				if (userObject == object) { // use pointer comparison
-					i.remove();
-					return true;
-				}
-			}
-			return false;
-		}
-	}
-}