Test accessing class object from java

compiler/testData/codegen/boxWithJava/classObjectAccessor/J.java

@@ -0,0 +1,5 @@
+public class J {
+    public static int f() {
+       return A.Default.getI1() + A.OBJECT$.getI2() + B.Named.getI1() + B.OBJECT$.getI2();
+    }
+}

compiler/testData/codegen/boxWithJava/classObjectAccessor/classObject.kt

@@ -0,0 +1,17 @@
+class A {
+    class object {
+        val i1 = 1
+        val i2 = 2
+    }
+}
+
+class B {
+    class object Named {
+        val i1 = 3
+        val i2 = 4
+    }
+}
+
+fun box(): String {
+    return if (J.f() == A.i1 + A.i2 + B.i1 + B.i2) "OK" else "Fail: ${J.f()}"
+}

compiler/tests/org/jetbrains/kotlin/codegen/generated/BlackBoxWithJavaCodegenTestGenerated.java

@@ -37,6 +37,12 @@ public class BlackBoxWithJavaCodegenTestGenerated extends AbstractBlackBoxCodege
         JetTestUtils.assertAllTestsPresentByMetadata(this.getClass(), new File("compiler/testData/codegen/boxWithJava"), Pattern.compile("^([^\\.]+)$"), true);
     }
 
+    @TestMetadata("classObjectAccessor")
+    public void testClassObjectAccessor() throws Exception {
+        String fileName = JetTestUtils.navigationMetadata("compiler/testData/codegen/boxWithJava/classObjectAccessor/");
+        doTestWithJava(fileName);
+    }
+
     @TestMetadata("inline")
     public void testInline() throws Exception {
         String fileName = JetTestUtils.navigationMetadata("compiler/testData/codegen/boxWithJava/inline/");