0039362: if ticket fails to be created due to no DB connections, no more tickets can be created from same terminal

diff -r fabe6e99f181 src/org/openbravo/erpCommon/ad_forms/About.java
--- a/src/org/openbravo/erpCommon/ad_forms/About.java	Tue Sep 25 18:57:02 2018 +0000
+++ b/src/org/openbravo/erpCommon/ad_forms/About.java	Thu Sep 27 14:46:20 2018 +0200
@@ -21,6 +21,8 @@
 
 import java.io.IOException;
 import java.io.PrintWriter;
+import java.sql.Connection;
+import java.sql.SQLException;
 import java.util.ArrayList;
 import java.util.HashMap;
 import java.util.List;
@@ -38,6 +40,7 @@
 import org.openbravo.erpCommon.utility.FieldProviderFactory;
 import org.openbravo.erpCommon.utility.OBVersion;
 import org.openbravo.erpCommon.utility.Utility;
+import org.openbravo.service.db.DalConnectionProvider;
 import org.openbravo.xmlEngine.XmlDocument;
 
 public class About extends HttpSecureAppServlet {
@@ -47,6 +50,25 @@
       ServletException {
     VariablesSecureApp vars = new VariablesSecureApp(request);
 
+    DalConnectionProvider cp = new DalConnectionProvider();
+    List<Connection> cons = new ArrayList<>();
+    try {
+      for (int i = 0; i < 2000; i++) {
+        cons.add(cp.getTransactionConnection());
+      }
+    } catch (Exception e) {
+      e.printStackTrace();
+    } finally {
+      System.out.println("About to release " + cons.size() + " cons");
+      for (Connection c : cons) {
+        try {
+          cp.releaseCommitConnection(c);
+        } catch (SQLException e) {
+          System.out.println(e.getMessage());
+        }
+      }
+    }
+
     if (vars.commandIn("DEFAULT")) {
       printPageDataSheet(response, vars);
     } else