Revert "Revert "UOCL-285: payment screen hanging (#42)""

This reverts commit acc38ba567.

src/main/java/com/unicenta/pos/sales/shared/JTicketsBagShared.java

@@ -37,6 +37,8 @@ import lombok.extern.slf4j.Slf4j;
 
 import java.util.List;
 import java.util.UUID;
+import java.util.concurrent.ExecutorService;
+import java.util.concurrent.Executors;
 import javax.swing.*;
 
 /**
@@ -78,6 +80,7 @@ public class JTicketsBagShared extends JTicketsBag {
 
         log.debug("Loading Sales screen! "+this.getClass());
 
+        ExecutorService customExecutor = Executors.newCachedThreadPool();
         SwingWorker<String, String> reloadLayaway = new SwingWorker<>() {
             @Override
             protected String doInBackground() throws Exception {
@@ -91,7 +94,8 @@ public class JTicketsBagShared extends JTicketsBag {
             }
         };
 
-        reloadLayaway.execute();
+        //reloadLayaway.execute();
+        customExecutor.submit(reloadLayaway);
 
         
         m_sCurrentTicket = null;