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

This reverts commit 0c6b84dd5f.

src/main/java/com/unicenta/pos/imports/CustomerCSVImport.java

@@ -41,8 +41,6 @@ import java.sql.SQLException;
 import java.util.ArrayList;
 import java.util.List;
 import java.util.UUID;
-import java.util.concurrent.ExecutorService;
-import java.util.concurrent.Executors;
 
 
 /**
@@ -278,7 +276,6 @@ public class CustomerCSVImport extends JPanel implements JPanelView {
    * the UI responsiveness.
    */
   private void setWorker() {
-    ExecutorService customExecutor = Executors.newCachedThreadPool();
     progress = 0;
     webPBar.setStringPainted(true);
 
@@ -307,8 +304,7 @@ public class CustomerCSVImport extends JPanel implements JPanelView {
         }
       }
     };
-    // pbWorker.execute();
-    customExecutor.submit(pbWorker);
+    pbWorker.execute();
   }
 
   /**

src/main/java/com/unicenta/pos/imports/JPanelCSVImport.java

@@ -44,8 +44,6 @@ import java.util.ArrayList;
 import java.util.HashMap;
 import java.util.List;
 import java.util.UUID;
-import java.util.concurrent.ExecutorService;
-import java.util.concurrent.Executors;
 
 
 /**
@@ -294,7 +292,6 @@ public class JPanelCSVImport extends JPanel implements JPanelView {
      * the UI responsiveness.
     */
     private void setWorker() {
-        ExecutorService customExecutor = Executors.newCachedThreadPool();
         progress = 0;
         webPBar.setStringPainted(true);
 
@@ -323,8 +320,7 @@ public class JPanelCSVImport extends JPanel implements JPanelView {
                 }    
             }
         };
-        //pbWorker.execute();
-        customExecutor.submit(pbWorker);
+        pbWorker.execute();
     }
 
     /**

src/main/java/com/unicenta/pos/imports/StockQtyImport.java

@@ -43,8 +43,6 @@ import java.sql.SQLException;
 import java.util.List;
 import java.util.Properties;
 import java.util.UUID;
-import java.util.concurrent.ExecutorService;
-import java.util.concurrent.Executors;
 
 
 /**
@@ -513,7 +511,6 @@ public class StockQtyImport extends JPanel implements JPanelView {
    * the UI responsiveness.
    */
   private void setWorker() {
-    ExecutorService customExecutor = Executors.newCachedThreadPool();
     progress = 0;
     webPBar.setStringPainted(true);
 
@@ -542,8 +539,7 @@ public class StockQtyImport extends JPanel implements JPanelView {
         }
       }
     };
-    //pbWorker.execute();
-    customExecutor.submit(pbWorker);
+    pbWorker.execute();
   }
 
   /**