do not search null-literal argument for notnull var-arg parameter IDEA-160134

java/java-indexing-impl/src/com/intellij/psi/impl/search/JavaNullMethodArgumentUtil.java

@@ -42,6 +42,10 @@ public class JavaNullMethodArgumentUtil {
   }
 
   public static void searchNullArgument(@NotNull PsiMethod method, final int argumentIdx, @NotNull Processor<PsiExpression> nullArgumentProcessor) {
+    final PsiParameter parameter = method.getParameterList().getParameters()[argumentIdx];
+    if (parameter.getType() instanceof PsiEllipsisType) {
+      return;
+    }
     final GlobalSearchScope scope = findScopeWhereNullArgumentCanPass(method, argumentIdx);
     if (scope == null) return;
     MethodReferencesSearch.search(method, scope, true).forEach(ref -> {

java/java-tests/testData/inspection/nullableProblems/NullPassedAsPartNotNullAnnotatedOfVarArg.java

@@ -0,0 +1,11 @@
+import org.jetbrains.annotations.NotNull;
+
+class Test {
+  static void someMethod(@NotNull Object... varargParameter) {
+
+  }
+
+  public static void main(String[] args) {
+    someMethod(null, null);
+  }
+}

java/java-tests/testSrc/com/intellij/codeInspection/NullableStuffInspectionTest.java

@@ -171,6 +171,10 @@ public class NullableStuffInspectionTest extends LightCodeInsightFixtureTestCase
     doTest();
   }
 
+  public void testNullPassedAsPartNotNullAnnotatedOfVarArg() {
+    doTest();
+  }
+
   public void testHonorParameterDefaultInSetters() {
     DataFlowInspectionTest.addJavaxNullabilityAnnotations(myFixture);
     DataFlowInspectionTest.addJavaxDefaultNullabilityAnnotations(myFixture);