method ref: type parameter instantiation (IDEA-154645)

java/java-psi-impl/src/com/intellij/psi/impl/source/tree/java/MethodReferenceResolver.java

@@ -54,7 +54,9 @@ public class MethodReferenceResolver implements ResolveCache.PolyVariantContextR
       final PsiElement element = reference.getReferenceNameElement();
       final boolean isConstructor = reference.isConstructor();
       if (element instanceof PsiIdentifier || isConstructor) {
-        if (isConstructor && (containingClass.isEnum() || containingClass.hasModifierProperty(PsiModifier.ABSTRACT))) {
+        if (isConstructor && (containingClass.isEnum() ||
+                              containingClass.hasModifierProperty(PsiModifier.ABSTRACT) ||
+                              containingClass instanceof PsiTypeParameter)) {
           return JavaResolveResult.EMPTY_ARRAY;
         }
         final PsiType functionalInterfaceType = getInterfaceType(reference);

java/java-tests/testData/codeInsight/daemonCodeAnalyzer/lambda/newMethodRef/TypeParameterInstantiation.java

@@ -0,0 +1,8 @@
+
+import java.util.function.Supplier;
+
+class Test<T> {
+  {
+    Supplier<T> aNew = T::<error descr="Cannot resolve constructor 'T'">new</error>;
+  }
+}

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

@@ -506,6 +506,10 @@ public class NewMethodRefHighlightingTest extends LightDaemonAnalyzerTestCase {
     doTest();
   }
 
+  public void testTypeParameterInstantiation() throws Exception {
+    doTest();
+  }
+
   private void doTest() {
     doTest(false);
   }