raw diamond substitution: infer Object for jdk < 1.8 (IDEA-133733)

java/java-psi-impl/src/com/intellij/psi/PsiDiamondTypeImpl.java

@@ -18,6 +18,8 @@ package com.intellij.psi;
 import com.intellij.lang.java.JavaLanguage;
 import com.intellij.openapi.diagnostic.Logger;
 import com.intellij.openapi.project.Project;
+import com.intellij.openapi.projectRoots.JavaSdkVersion;
+import com.intellij.openapi.projectRoots.JavaVersionService;
 import com.intellij.openapi.util.Comparing;
 import com.intellij.openapi.util.Computable;
 import com.intellij.openapi.util.Ref;
@@ -167,6 +169,12 @@ public class PsiDiamondTypeImpl extends PsiDiamondType {
     final DiamondInferenceResult result = new DiamondInferenceResult(classOrAnonymousClassReference.getReferenceName() + "<>");
 
     if (PsiUtil.isRawSubstitutor(staticFactory, inferredSubstitutor)) {
+      if (!JavaVersionService.getInstance().isAtLeast(argumentList, JavaSdkVersion.JDK_1_8) && 
+          PsiUtil.skipParenthesizedExprUp(newExpression.getParent()) instanceof PsiExpressionList) {
+        for (PsiTypeParameter parameter : parameters) {
+          result.addInferredType(PsiType.getJavaLangObject(psiClass.getManager(), GlobalSearchScope.allScope(psiClass.getProject())));
+        }
+      }
       return result;
     }
 

java/java-tests/testData/codeInsight/daemonCodeAnalyzer/advHighlighting7/RawSubstitutor.java

@@ -3,4 +3,14 @@ import java.util.*;
 class Sample {
   public static List getList() {return null;}
   List<Integer> list = new ArrayList<>(getList());
+
+  void foo() {
+    barz<error descr="'barz(java.util.Map<java.lang.String,java.lang.String[]>)' in 'Sample' cannot be applied to '(java.util.HashMap<java.lang.Object,java.lang.Object>)'">(new HashMap<>(create()))</error>;
+  }
+
+  Map create() {
+    return null;
+  }
+
+  void barz(Map<String, String[]> map) {}
 }