Refreshing icons on receiving externalAnnotationsChangedExternally event.

idea/src/META-INF/plugin.xml

@@ -29,6 +29,9 @@
       <component>
         <implementation-class>org.jetbrains.jet.plugin.OutdatedKotlinRuntimeNotification</implementation-class>
       </component>
+      <component>
+        <implementation-class>org.jetbrains.jet.plugin.codeInsight.ktSignature.KotlinSignatureInJavaMarkerUpdater</implementation-class>
+      </component>
   </project-components>
 
   <module-components>

idea/src/org/jetbrains/jet/plugin/codeInsight/ktSignature/KotlinSignatureInJavaMarkerUpdater.java

@@ -0,0 +1,42 @@
+/*
+ * Copyright 2010-2012 JetBrains s.r.o.
+ *
+ * Licensed 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.jetbrains.jet.plugin.codeInsight.ktSignature;
+
+import com.intellij.codeInsight.ExternalAnnotationsListener;
+import com.intellij.codeInsight.ExternalAnnotationsManager;
+import com.intellij.openapi.components.AbstractProjectComponent;
+import com.intellij.openapi.project.Project;
+
+/**
+ * @author Evgeny Gerashchenko
+ * @since 31 August 2012
+ */
+public class KotlinSignatureInJavaMarkerUpdater extends AbstractProjectComponent {
+    protected KotlinSignatureInJavaMarkerUpdater(Project project) {
+        super(project);
+    }
+
+    @Override
+    public void initComponent() {
+        myProject.getMessageBus().connect().subscribe(ExternalAnnotationsManager.TOPIC, new ExternalAnnotationsListener.Adapter() {
+            @Override
+            public void externalAnnotationsChangedExternally() {
+                KotlinSignatureUtil.refreshMarkers(myProject);
+            }
+        });
+    }
+}