java completion: no inaccessible methods when qualifier has intersection type (IDEA-187481)

java/java-impl/src/com/intellij/codeInsight/completion/scope/JavaCompletionProcessor.java

@@ -220,7 +220,9 @@ public class JavaCompletionProcessor implements PsiScopeProcessor, ElementClassH
 
   public void setQualifierType(@Nullable PsiType qualifierType) {
     myQualifierType = qualifierType;
-    myQualifierClass = PsiUtil.resolveClassInClassTypeOnly(qualifierType);
+    myQualifierClass = PsiUtil.resolveClassInClassTypeOnly(qualifierType instanceof PsiIntersectionType
+                                                           ? ((PsiIntersectionType)qualifierType).getRepresentative()
+                                                           : qualifierType);
   }
 
   @Nullable

java/java-tests/testSrc/com/intellij/java/codeInsight/completion/Normal8CompletionTest.groovy

@@ -342,4 +342,12 @@ class Test88 {
   private checkResultByFileName() {
     checkResultByFile(getTestName(false) + "_after.java")
   }
+
+  void "test intersection type members"() {
+    myFixture.configureByText 'a.java',
+                              'import java.util.*; class F { { (true ? new LinkedList<>() : new ArrayList<>()).<caret> }}'
+    myFixture.completeBasic()
+    assert !('finalize' in myFixture.lookupElementStrings)
+  }
+
 }
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