KTIJ-717 [Java side inspection]: "implementation of Kotlin sealed"

idea/testData/multiFileInspections/kotlinSealedInJavaTest/before/JavaTriesToExtendKotlinSealed.java

@@ -0,0 +1,18 @@
+public class JavaTriesToExtendKotlinSealed {
+
+    private static class TryToImplement implements KotlinSealedInterface {}
+    private static interface TryToExtend extends KotlinSealedInterface {}
+    private static class TryToExtendClass extends KotlinSealedClass {}
+
+    class OkToImplement implements KotlinInterface {}
+    interface OkToExtend extends KotlinInterface {}
+    class OkToExtendClass extends KotlinClass{}
+
+    public static void main(String[] args) {
+        KotlinSealedInterface sealedInterface = new KotlinSealedInterface() {}; // anonymouns class implements interface
+        KotlinSealedClass sealedClass = new KotlinSealedClass() {};
+
+        new KotlinInterface() {};
+        new KotlinClass() {};
+    }
+}