src/java.desktop/share/classes/com/sun/imageio/plugins/jpeg/JPEGImageWriter.java

@@ -1102,10 +1102,15 @@
             cbLock.unlock();
         }
         currentImage++;  // After a successful write
     }
 
+    @Override
+    public boolean canWriteSequence() {
+        return true;
+    }
+
     public void prepareWriteSequence(IIOMetadata streamMetadata)
         throws IOException {
         setThreadLock();
         try {
             cbLock.check();