Fix J2K ObjectLiteral.testMyFrame by updating incorrect testData

j2k/testData/fileOrElement/objectLiteral/MyFrame.java

@@ -8,7 +8,9 @@ interface WindowListener {
 interface EmptyWindowListener {
 }
 
-open class EmptyWindowAdapter : EmptyWindowListener {}
+class EmptyWindowAdapter implements EmptyWindowListener {
+
+}
 
 class WindowAdapter implements WindowListener {
   public void windowClosing () {

j2k/testData/fileOrElement/objectLiteral/MyFrame.kt

@@ -5,7 +5,8 @@ internal interface WindowListener {
 }
 
 internal interface EmptyWindowListener
-internal open class EmptyWindowAdapter
+
+internal open class EmptyWindowAdapter : EmptyWindowListener
 
 internal open class WindowAdapter : WindowListener {
     override fun windowClosing() {}