AIOOBE

java/java-psi-api/src/com/intellij/psi/infos/MethodCandidateInfo.java

@@ -173,6 +173,10 @@ public class MethodCandidateInfo extends CandidateInfo{
       final PsiParameter[] parameters = method.getParameterList().getParameters();
       final PsiExpression[] expressions = ((PsiExpressionList)myArgumentList).getExpressions();
 
+      if (!isVarargs() && expressions.length != parameters.length) {
+        return true;
+      }
+
       for (int i = 0; i < expressions.length; i++) {
         final PsiExpression expression = expressions[i];
         PsiType formalParameterType = i < parameters.length ? parameters[i].getType() : parameters[parameters.length - 1].getType();

java/java-tests/testData/codeInsight/daemonCodeAnalyzer/lambda/overloadResolution/IgnoreNumberOfParametersInPotentiallyCompatibleCheckNotToExcludeAllConflicts.java

@@ -0,0 +1,15 @@
+class BB {
+  public boolean isVarArgCall() {
+    return false;
+  }
+
+  private static boolean isVarArgCall(String method, String substitutor) {
+    return false;
+  }
+}
+
+class Test {
+  void f(BB b){
+    BB.<error descr="Non-static method 'isVarArgCall()' cannot be referenced from a static context">isVarArgCall</error>();
+  }
+}

java/java-tests/testSrc/com/intellij/codeInsight/daemon/lambda/OverloadResolutionTest.java

@@ -183,6 +183,10 @@ public class OverloadResolutionTest extends LightDaemonAnalyzerTestCase {
     doTest();
   }
 
+  public void testIgnoreNumberOfParametersInPotentiallyCompatibleCheckNotToExcludeAllConflicts() throws Exception {
+    doTest(false);
+  }
+
   private void doTest() {
     doTest(true);
   }