diff --git a/ipojo/runtime/core-it/ipojo-core-annotations-test/src/main/java/org/apache/felix/ipojo/runtime/core/test/components/DependencyUsingSpecification.java b/ipojo/runtime/core-it/ipojo-core-annotations-test/src/main/java/org/apache/felix/ipojo/runtime/core/test/components/DependencyUsingSpecification.java
new file mode 100644
index 0000000..42d6bb9
--- /dev/null
+++ b/ipojo/runtime/core-it/ipojo-core-annotations-test/src/main/java/org/apache/felix/ipojo/runtime/core/test/components/DependencyUsingSpecification.java
@@ -0,0 +1,55 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
+package org.apache.felix.ipojo.runtime.core.test.components;
+
+import org.apache.felix.ipojo.annotations.*;
+import org.apache.felix.ipojo.runtime.core.test.services.BarService;
+import org.apache.felix.ipojo.runtime.core.test.services.CheckService;
+import org.apache.felix.ipojo.runtime.core.test.services.FooService;
+
+import java.util.*;
+import java.util.Properties;
+
+@Component
+@Provides
+public class DependencyUsingSpecification implements CheckService {
+
+    private boolean bound = false;
+    
+    @Unbind
+    public synchronized void unbindBar() {
+        bound = false;
+    }
+    
+    @Bind(specification = BarService.class, optional = true)
+    public synchronized void bindBar() {
+        bound = true;
+    }
+
+    @Override
+    public boolean check() {
+        return bound;
+    }
+
+    @Override
+    public Properties getProps() {
+        return null;
+    }
+}
diff --git a/ipojo/runtime/core-it/ipojo-core-annotations-test/src/test/java/org/apache/felix/ipojo/runtime/core/test/annotations/TestDependency.java b/ipojo/runtime/core-it/ipojo-core-annotations-test/src/test/java/org/apache/felix/ipojo/runtime/core/test/annotations/TestDependency.java
index aa3be4d..6ef8078 100644
--- a/ipojo/runtime/core-it/ipojo-core-annotations-test/src/test/java/org/apache/felix/ipojo/runtime/core/test/annotations/TestDependency.java
+++ b/ipojo/runtime/core-it/ipojo-core-annotations-test/src/test/java/org/apache/felix/ipojo/runtime/core/test/annotations/TestDependency.java
@@ -19,10 +19,16 @@
 
 package org.apache.felix.ipojo.runtime.core.test.annotations;
 
+import org.apache.felix.ipojo.ComponentInstance;
 import org.apache.felix.ipojo.metadata.Element;
+import org.apache.felix.ipojo.runtime.core.test.services.CheckService;
 import org.junit.Test;
+import org.osgi.framework.ServiceReference;
+import org.ow2.chameleon.testing.helpers.IPOJOHelper;
 
 import static junit.framework.Assert.assertEquals;
+import static junit.framework.Assert.assertFalse;
+import static junit.framework.Assert.assertNotNull;
 import static org.junit.Assert.*;
 
 public class TestDependency extends Common {
@@ -30,7 +36,8 @@
 
     @Test
     public void testDependencyDeclaration() {
-        Element meta = ipojoHelper.getMetadata(getTestBundle(),  "org.apache.felix.ipojo.runtime.core.test.components.Dependency");
+        Element meta = IPOJOHelper.getMetadata(getTestBundle(),
+                "org.apache.felix.ipojo.runtime.core.test.components.Dependency");
         Element[] deps = meta.getElements("requires");
 
         // Check fs
@@ -106,6 +113,32 @@
         assertEquals("Check not proxied", "false", dep.getAttribute("proxy"));
     }
 
+    /**
+     * Reproduce https://issues.apache.org/jira/browse/FELIX-4380.
+     */
+    @Test
+    public void testDependencyUsingSpecification() {
+        ComponentInstance instance = ipojoHelper.createComponentInstance("org.apache.felix.ipojo.runtime.core.test" +
+                ".components.DependencyUsingSpecification");
+
+        ServiceReference ref = ipojoHelper.getServiceReferenceByName(CheckService.class.getName(),
+                instance.getInstanceName());
+
+        assertNotNull(ref);
+
+        CheckService svc = (CheckService) osgiHelper.getServiceObject(ref);
+        assertFalse(svc.check());
+
+        // The following instantiation exposes the BarService required by instance.
+        ComponentInstance bar = ipojoHelper.createComponentInstance("org.apache.felix.ipojo.runtime.core.test" +
+                ".components.ProvidesSimple");
+
+        assertTrue(svc.check());
+
+        bar.dispose();
+        assertFalse(svc.check());
+    }
+
     private Element getDependencyById(Element[] deps, String name) {
         for (int i = 0; i < deps.length; i++) {
             String na = deps[i].getAttribute("id");