diff --git a/java/java-impl/src/com/intellij/codeInspection/ex/EntryPointsManagerImpl.java b/java/java-impl/src/com/intellij/codeInspection/ex/EntryPointsManagerImpl.java
index c1d316ff0914..0b0c60e7395d 100644
--- a/java/java-impl/src/com/intellij/codeInspection/ex/EntryPointsManagerImpl.java
+++ b/java/java-impl/src/com/intellij/codeInspection/ex/EntryPointsManagerImpl.java
@@ -432,7 +432,7 @@ public class EntryPointsManagerImpl implements PersistentStateComponent<Element>
     myAddNonJavaEntries = addNonJavaEntries;
   }
   
-  public boolean isEntryPoint(PsiModifierListOwner element) {
+  public boolean isEntryPoint(@NotNull PsiModifierListOwner element) {
     return AnnotationUtil.isAnnotated(element, ADDITIONAL_ANNOTATIONS) ||
            AnnotationUtil.isAnnotated(element, getAdditionalAnnotations());
   }
diff --git a/java/java-impl/src/com/intellij/codeInspection/unusedParameters/UnusedParametersInspection.java b/java/java-impl/src/com/intellij/codeInspection/unusedParameters/UnusedParametersInspection.java
index aed39b1e7802..2e32ea1a744d 100644
--- a/java/java-impl/src/com/intellij/codeInspection/unusedParameters/UnusedParametersInspection.java
+++ b/java/java-impl/src/com/intellij/codeInspection/unusedParameters/UnusedParametersInspection.java
@@ -74,7 +74,9 @@ public class UnusedParametersInspection extends GlobalJavaInspectionTool {
       if ((refMethod.isAbstract() || refMethod.getOwnerClass().isInterface()) && refMethod.getDerivedMethods().isEmpty()) return null;
 
       if (RefUtil.isEntryPoint(refMethod)) return null;
-      if (EntryPointsManagerImpl.getInstance(manager.getProject()).isEntryPoint(refMethod.getElement())) return null;
+
+      final PsiModifierListOwner element = refMethod.getElement();
+      if (element != null && EntryPointsManagerImpl.getInstance(manager.getProject()).isEntryPoint(element)) return null;
 
       if (refMethod.isAppMain()) return null;
 
diff --git a/java/java-impl/src/com/intellij/refactoring/extractSuperclass/JavaExtractSuperBaseDialog.java b/java/java-impl/src/com/intellij/refactoring/extractSuperclass/JavaExtractSuperBaseDialog.java
index 2e9b83218969..674b6b16fe65 100644
--- a/java/java-impl/src/com/intellij/refactoring/extractSuperclass/JavaExtractSuperBaseDialog.java
+++ b/java/java-impl/src/com/intellij/refactoring/extractSuperclass/JavaExtractSuperBaseDialog.java
@@ -125,7 +125,7 @@ public abstract class JavaExtractSuperBaseDialog extends ExtractSuperBaseDialog<
   protected void preparePackage() throws OperationFailedException {
     final String targetPackageName = getTargetPackageName();
     final JavaPsiFacade psiFacade = JavaPsiFacade.getInstance(myProject);
-    if (!psiFacade.getNameHelper().isIdentifier(targetPackageName)) {
+    if (!psiFacade.getNameHelper().isQualifiedName(targetPackageName)) {
       throw new OperationFailedException("Invalid package name: " + targetPackageName);
     }
     final PsiPackage aPackage = psiFacade.findPackage(targetPackageName);
diff --git a/platform/lang-impl/src/com/intellij/codeInspection/ex/DescriptorProviderInspection.java b/platform/lang-impl/src/com/intellij/codeInspection/ex/DescriptorProviderInspection.java
index 2d8d5ec100a3..6503e871fc90 100644
--- a/platform/lang-impl/src/com/intellij/codeInspection/ex/DescriptorProviderInspection.java
+++ b/platform/lang-impl/src/com/intellij/codeInspection/ex/DescriptorProviderInspection.java
@@ -187,6 +187,14 @@ public abstract class DescriptorProviderInspection extends InspectionTool implem
     getIgnoredElements().put(refEntity, problemDescriptors);
   }
 
+  public void ignoreCurrentElementProblem(RefEntity refEntity, CommonProblemDescriptor descriptor) {
+    CommonProblemDescriptor[] descriptors = getIgnoredElements().get(refEntity);
+    if (descriptors == null) {
+      descriptors = new CommonProblemDescriptor[0];
+    }
+    getIgnoredElements().put(refEntity, ArrayUtil.append(descriptors, descriptor));
+  }
+
   private static boolean isIgnoreProblem(QuickFix[] problemFixes, Set<QuickFix> fixes, int idx){
     if (problemFixes == null || fixes == null) {
       return true;
@@ -451,6 +459,17 @@ public abstract class DescriptorProviderInspection extends InspectionTool implem
     return false;
   }
 
+  public boolean isProblemResolved(RefEntity refEntity, CommonProblemDescriptor descriptor) {
+    if (getIgnoredElements() == null) return false;
+    for (RefEntity entity : getIgnoredElements().keySet()) {
+      if (Comparing.equal(entity, refEntity)) {
+        final CommonProblemDescriptor[] descriptors = getIgnoredElements().get(refEntity);
+        return ArrayUtil.contains(descriptor, descriptors);
+      }
+    }
+    return false;
+  }
+  
   public FileStatus getProblemStatus(final CommonProblemDescriptor descriptor) {
     final GlobalInspectionContextImpl context = getContext();
     if (context != null && context.getUIOptions().SHOW_DIFF_WITH_PREVIOUS_RUN){
diff --git a/platform/lang-impl/src/com/intellij/codeInspection/ui/ProblemDescriptionNode.java b/platform/lang-impl/src/com/intellij/codeInspection/ui/ProblemDescriptionNode.java
index 2610ab6d0fb5..b92dab9a6384 100644
--- a/platform/lang-impl/src/com/intellij/codeInspection/ui/ProblemDescriptionNode.java
+++ b/platform/lang-impl/src/com/intellij/codeInspection/ui/ProblemDescriptionNode.java
@@ -95,11 +95,11 @@ public class ProblemDescriptionNode extends InspectionTreeNode {
 
 
   public boolean isResolved() {
-    return myElement instanceof RefElement && myTool.isElementIgnored(myElement);
+    return myElement instanceof RefElement && myTool.isProblemResolved(myElement, getDescriptor());
   }
 
   public void ignoreElement() {
-    myTool.ignoreCurrentElement(getElement());
+    myTool.ignoreCurrentElementProblem(getElement(), getDescriptor());
   }
 
   public void amnesty() {