notnull

java/java-impl/src/com/intellij/codeInsight/daemon/impl/quickfix/ImportClassFix.java

@@ -107,6 +107,7 @@ public class ImportClassFix extends ImportClassFixBase<PsiJavaCodeReferenceEleme
     return super.getRequiredMemberName(reference);
   }
 
+  @NotNull
   @Override
   protected List<PsiClass> filterByContext(@NotNull List<PsiClass> candidates, @NotNull PsiJavaCodeReferenceElement ref) {
     PsiElement typeElement = ref.getParent();

java/java-impl/src/com/intellij/codeInsight/daemon/impl/quickfix/ImportClassFixBase.java

@@ -184,6 +184,7 @@ public abstract class ImportClassFixBase<T extends PsiElement, R extends PsiRefe
     return null;
   }
 
+  @NotNull
   protected List<PsiClass> filterByContext(@NotNull List<PsiClass> candidates, @NotNull T ref) {
     return candidates;
   }

plugins/groovy/src/org/jetbrains/plugins/groovy/annotator/intentions/GroovyAddImportAction.java

@@ -79,6 +79,7 @@ public class GroovyAddImportAction extends ImportClassFixBase<GrReferenceElement
     return false;
   }
 
+  @NotNull
   @Override
   protected List<PsiClass> filterByContext(@NotNull List<PsiClass> candidates, @NotNull GrReferenceElement ref) {
     PsiElement typeElement = ref.getParent();