drop caches more often

java/java-impl/src/com/intellij/codeInspection/reference/RefClassImpl.java

@@ -173,6 +173,7 @@ public class RefClassImpl extends RefJavaElementImpl implements RefClass {
     final PsiClass applet = getRefJavaManager().getApplet();
     setApplet(applet != null && psiClass.isInheritor(applet, true));
     getRefManager().fireNodeInitialized(this);
+    getRefManager().getPsiManager().dropResolveCaches();
   }
 
   private void initializeSuperReferences(PsiClass psiClass) {

platform/lang-api/src/com/intellij/codeInspection/reference/RefManager.java

@@ -20,6 +20,7 @@ import com.intellij.openapi.module.Module;
 import com.intellij.openapi.project.Project;
 import com.intellij.openapi.util.Key;
 import com.intellij.psi.PsiElement;
+import com.intellij.psi.PsiManager;
 import org.jdom.Element;
 import org.jetbrains.annotations.Nullable;
 
@@ -108,4 +109,6 @@ public abstract class RefManager {
   public abstract String getQualifiedName(RefEntity refEntity);
 
   public abstract void removeRefElement(RefElement refElement, List<RefElement> deletedRefs);
+
+  public abstract PsiManager getPsiManager();
 }

platform/lang-impl/src/com/intellij/codeInspection/reference/RefManagerImpl.java

@@ -67,6 +67,7 @@ public class RefManagerImpl extends RefManager {
   private THashMap<Module, RefModule> myModules;
   private final ProjectIterator myProjectIterator;
   private boolean myDeclarationsFound;
+  private final PsiManager myPsiManager;
 
   private boolean myIsInProcess = false;
 
@@ -83,6 +84,7 @@ public class RefManagerImpl extends RefManager {
     myProject = project;
     myScope = scope;
     myContext = context;
+    myPsiManager = PsiManager.getInstance(project);
     myRefProject = new RefProjectImpl(this);
     myRefTable = new THashMap<PsiAnchor, RefElement>();
     myProjectIterator = new ProjectIterator();
@@ -298,6 +300,11 @@ public class RefManagerImpl extends RefManager {
     return myRefTable;
   }
 
+  @Override
+  public PsiManager getPsiManager() {
+    return myPsiManager;
+  }
+
   public void removeReference(RefElement refElem) {
     myLock.writeLock().lock();
     try {
@@ -366,6 +373,7 @@ public class RefManagerImpl extends RefManager {
       for (Language language : relevantLanguages) {
         visitElement(viewProvider.getPsi(language));
       }
+      myPsiManager.dropResolveCaches();
     }
   }