JDeveloper fails to run a servlet, debugging works fine

[Hannu Rahikainen]

I am using Oracle JDeveloper 9.0.5.1 (Build 1605).

When I try to run the application, data base access fails with the
following:

04/06/08 12:48:11 java.sql.SQLException: Unable to connect to any
hosts due to exception: java.lang.NullPointerException
04/06/08 12:48:11 at
com.mysql.jdbc.Connection.createNewIO(Connection.java:1535)
04/06/08 12:48:11 at
com.mysql.jdbc.Connection.<init>(Connection.java:474)
04/06/08 12:48:11 at com.mysql.jdbc.Driver.connect(Driver.java:413)
04/06/08 12:48:11 at
java.sql.DriverManager.getConnection(DriverManager.java:512)
04/06/08 12:48:11 at
java.sql.DriverManager.getConnection(DriverManager.java:171)
04/06/08 12:48:11 at
fi.activesoft.db.DBconn.DBConnect(DBconn.java:48)
04/06/08 12:48:11 at
fi.activesoft.asbsutils.Targetdayinfo.getClosedXMLStr(Targetdayinfo.java:227)
04/06/08 12:48:11 at
fi.activesoft.beans.TargetdayinfoBean.doClosedQuery(TargetdayinfoBean.java:266)
04/06/08 12:48:11 at
fi.activesoft.beans.TargetdayinfoBean.setdb(TargetdayinfoBean.java:418)
04/06/08 12:48:11 at _bsD1hBooking._jspService(bsD1hBooking.jsp:664)
04/06/08 12:48:11 at
oracle.jsp.runtime.HttpJsp.service(HttpJsp.java:139)
04/06/08 12:48:11 at
oracle.jsp.runtimev2.JspPageTable.service(JspPageTable.java:349)
04/06/08 12:48:11 at
oracle.jsp.runtimev2.JspServlet.internalService(JspServlet.java:509)
04/06/08 12:48:11 at
oracle.jsp.runtimev2.JspServlet.service(JspServlet.java:413)
04/06/08 12:48:11 at
javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
04/06/08 12:48:11 at
com.evermind.server.http.ResourceFilterChain.doFilter(ResourceFilterChain.java:65)
04/06/08 12:48:11 at
oracle.security.jazn.oc4j.JAZNFilter.doFilter(Unknown Source)
04/06/08 12:48:11 at
com.evermind.server.http.ServletRequestDispatcher.invoke(ServletRequestDispatcher.java:604)
04/06/08 12:48:11 at
com.evermind.server.http.ServletRequestDispatcher.forwardInternal(ServletRequestDispatcher.java:317)
04/06/08 12:48:11 at
com.evermind.server.http.HttpRequestHandler.processRequest(HttpRequestHandler.java:790)
04/06/08 12:48:11 at
com.evermind.server.http.HttpRequestHandler.run(HttpRequestHandler.java:270)
04/06/08 12:48:11 at
com.evermind.server.http.HttpRequestHandler.run(HttpRequestHandler.java:112)
04/06/08 12:48:11 at
com.evermind.util.ReleasableResourcePooledExecutor$MyWorker.run(ReleasableResourcePooledExecutor.java:192)
04/06/08 12:48:11 at java.lang.Thread.run(Thread.java:534)

However, debugging the servlet (without any breakpoints) works fine.

I cannot find any explanation for this. All parameters passed to
getConnection are correct.