moving PsiReferenceContributor to application level: FindUsagesTest fixed

java/java-impl/src/com/intellij/psi/impl/source/resolve/reference/impl/providers/JavaClassListReferenceProvider.java

@@ -16,10 +16,12 @@
 package com.intellij.psi.impl.source.resolve.reference.impl.providers;
 
 import com.intellij.openapi.progress.ProgressManager;
+import com.intellij.openapi.project.Project;
 import com.intellij.openapi.util.NotNullLazyValue;
 import com.intellij.psi.PsiElement;
 import com.intellij.psi.PsiPackage;
 import com.intellij.psi.PsiReference;
+import com.intellij.psi.search.GlobalSearchScope;
 import com.intellij.psi.templateLanguages.OuterLanguageElement;
 import com.intellij.psi.xml.XmlTag;
 import com.intellij.util.containers.ContainerUtil;
@@ -103,4 +105,9 @@ public class JavaClassListReferenceProvider extends JavaClassReferenceProvider {
     }
     return ContainerUtil.toArray(results, new PsiReference[results.size()]);
   }
+
+  @Override
+  public GlobalSearchScope getScope(Project project) {
+    return GlobalSearchScope.allScope(project);
+  }
 }

java/java-impl/src/com/intellij/psi/impl/source/resolve/reference/impl/providers/JavaClassReference.java

@@ -428,7 +428,7 @@ public class JavaClassReference extends GenericReference implements PsiJavaRefer
   }
 
   private GlobalSearchScope getScope() {
-    final GlobalSearchScope scope = myJavaClassReferenceSet.getProvider().getScope();
+    final GlobalSearchScope scope = myJavaClassReferenceSet.getProvider().getScope(getElement().getProject());
     if (scope == null) {
       final Module module = ModuleUtil.findModuleForPsiElement(getElement());
       if (module != null) {
@@ -503,7 +503,7 @@ public class JavaClassReference extends GenericReference implements PsiJavaRefer
   private Object[] getSubclassVariants(@NotNull PsiPackage context, @NotNull String[] extendClasses) {
     HashSet<Object> lookups = new HashSet<Object>();
     GlobalSearchScope packageScope = PackageScope.packageScope(context, true);
-    GlobalSearchScope scope = myJavaClassReferenceSet.getProvider().getScope();
+    GlobalSearchScope scope = myJavaClassReferenceSet.getProvider().getScope(getElement().getProject());
     if (scope != null) {
       packageScope = packageScope.intersectWith(scope);
     }

java/java-impl/src/com/intellij/psi/impl/source/resolve/reference/impl/providers/JavaClassReferenceProvider.java

@@ -79,7 +79,7 @@ public class JavaClassReferenceProvider extends GenericReferenceProvider impleme
       }
     };
 
-  private static final Key<ParameterizedCachedValue<List<PsiElement>, Project>> KEY = Key.create("default packages");
+  private final Key<ParameterizedCachedValue<List<PsiElement>, Project>> myKey = Key.create("default packages");
 
   public <T> void setOption(CustomizationKey<T> option, T value) {
     if (myOptions == null) {
@@ -94,7 +94,7 @@ public class JavaClassReferenceProvider extends GenericReferenceProvider impleme
   }
 
   @Nullable
-  public GlobalSearchScope getScope() {
+  public GlobalSearchScope getScope(Project project) {
     return null;
   }
 
@@ -130,7 +130,7 @@ public class JavaClassReferenceProvider extends GenericReferenceProvider impleme
   }
 
   protected List<PsiElement> getDefaultPackages(Project project) {
-    return CachedValuesManager.getManager(project).getParameterizedCachedValue(project, KEY, myProvider, false, project);
+    return CachedValuesManager.getManager(project).getParameterizedCachedValue(project, myKey, myProvider, false, project);
   }
 
   private static Collection<PsiPackage> getSubPackages(final PsiPackage defaultPackage) {

java/java-impl/src/com/intellij/util/xml/PsiClassConverter.java

@@ -17,6 +17,7 @@
 package com.intellij.util.xml;
 
 import com.intellij.openapi.module.Module;
+import com.intellij.openapi.project.Project;
 import com.intellij.openapi.roots.ProjectFileIndex;
 import com.intellij.openapi.roots.ProjectRootManager;
 import com.intellij.openapi.util.text.StringUtil;
@@ -66,7 +67,7 @@ public class PsiClassConverter extends Converter<PsiClass> implements CustomRefe
       new JavaClassReferenceProvider() {
 
         @Override
-        public GlobalSearchScope getScope() {
+        public GlobalSearchScope getScope(Project project) {
           return PsiClassConverter.this.getScope(genericDomValue);
         }
       };