IDEA-143934 Failed to complete static methods on class from excluded package

java/java-impl/src/com/intellij/codeInsight/completion/JavaCompletionUtil.java

@@ -285,6 +285,9 @@ public class JavaCompletionUtil {
 
     final boolean pkgContext = inSomePackage(element);
 
+    PsiClass qualifierClass = PsiUtil.resolveClassInClassTypeOnly(qualifierType);
+    final boolean honorExcludes = qualifierClass == null || !isInExcludedPackage(qualifierClass, false);
+
     final Set<PsiMember> mentioned = new THashSet<PsiMember>();
     for (CompletionElement completionElement : processor.getResults()) {
       for (LookupElement item : createLookupElements(completionElement, javaReference)) {
@@ -294,7 +297,7 @@ public class JavaCompletionUtil {
           continue;
         }
         if (o instanceof PsiMember) {
-          if (isInExcludedPackage((PsiMember)o, true)) {
+          if (honorExcludes && isInExcludedPackage((PsiMember)o, true)) {
             continue;
           }
           mentioned.add(CompletionUtil.getOriginalOrSelf((PsiMember)o));

java/java-tests/testData/codeInsight/completion/normal/StaticMethodOfExcludedClass.java

@@ -0,0 +1,6 @@
+public class Main {
+  void f() {
+    foo.Outer.m<caret>x
+  }
+  
+}

java/java-tests/testSrc/com/intellij/codeInsight/completion/NormalCompletionTest.groovy

@@ -441,6 +441,13 @@ public class NormalCompletionTest extends LightFixtureCompletionTestCase {
     assert myFixture.lookupElementStrings == ['Inner']
   }
 
+  public void testStaticMethodOfExcludedClass() {
+    JavaProjectCodeInsightSettings.setExcludedNames(project, testRootDisposable, "foo")
+    myFixture.addClass 'package foo; public class Outer { public static void method() {} }'
+    configure()
+    assert myFixture.lookupElementStrings == ['method']
+  }
+
   public void testAtUnderClass() throws Throwable {
     doTest('\n');
   }

plugins/groovy/src/org/jetbrains/plugins/groovy/lang/completion/GrMainCompletionProvider.java

@@ -229,6 +229,9 @@ public class GrMainCompletionProvider extends CompletionProvider<CompletionParam
 
     final List<LookupElement> zeroPriority = ContainerUtil.newArrayList();
 
+    PsiClass qualifierClass = com.intellij.psi.util.PsiUtil.resolveClassInClassTypeOnly(qualifierType);
+    final boolean honorExcludes = qualifierClass == null || !JavaCompletionUtil.isInExcludedPackage(qualifierClass, false);
+
     GroovyCompletionUtil.processVariants(reference, matcher, parameters, new Consumer<LookupElement>() {
       @Override
       public void consume(LookupElement lookupElement) {
@@ -245,7 +248,7 @@ public class GrMainCompletionProvider extends CompletionProvider<CompletionParam
           return;
         }
 
-        if (object instanceof PsiMember && JavaCompletionUtil.isInExcludedPackage((PsiMember)object, true)) {
+        if (honorExcludes && object instanceof PsiMember && JavaCompletionUtil.isInExcludedPackage((PsiMember)object, true)) {
           return;
         }
 

plugins/groovy/test/org/jetbrains/plugins/groovy/completion/GroovyCompletionTest.groovy

@@ -959,6 +959,11 @@ class Fopppp {
     assert !doContainsTest('StringBuffer', 'StringBuff<caret>f')
   }
 
+  public void testStaticMethodOnExcludedClass() {
+    JavaProjectCodeInsightSettings.setExcludedNames(project, testRootDisposable, String.name)
+    assert doContainsTest('valueOf', 'String.val<caret>f')
+  }
+
   private doContainsTest(String itemToCheck, String text) {
     myFixture.configureByText "a.groovy", text