Segmentation violation while logging to jdbc type 4

Question

hi,
I'm getting segmentation violation everytime when I try to log to jdbc type 4 after I've sent emails (via a thread). The code was working fine for type 2 jdbc. Following is my stack trace:
SIGSEGV 11 segmentation violation
si_signo [11]: SEGV
si_errno [0]:
si_code [1]: SEGV_MAPERR [addr: 0x0]
stackpointer=E107EB98
"Thread-49" (TID:0x135b978, sys_thread_t:0x135b8b0, state:CW, thread_t: t@87, threadID:0xe73a4000, stack_bottom:0xe0e00000, stack_size:0x200000) prio=6
[1] java.lang.Thread.sleep(Native Method)
[2] com.kivasoft.applogic.AppLogicCleaner.run(Unknown Source)
"Thread-48" (TID:0x1328960, sys_thread_t:0x1328898, state:R, thread_t: t@86, threadID:0xe73a3e00, stack_bottom:0xe1080000, stack_size:0x200000) prio=5 current thread
[1] com.kivasoft.rlop.ObjectPoolManager.getObjectPoolnative(Native Method)
[2] com.kivasoft.rlop.ObjectPoolManager.getObjectPool(Unknown Source)
[3] com.netscape.server.jdbc.ConnectionPool.getPool(Unknown Source)
[4] com.netscape.server.jdbc.ConnectionPool.getFromPool(Unknown Source)
[5] com.netscape.server.jdbc.ConnectionPool.getConnection(Unknown Source)
[6] com.netscape.server.jdbc.DataSourceImpl.getConnection(Unknown Source)
[7] TestDatabase.getConnection(TestDatabase.java:89)
Is there any threading issue for logging to jdbc? I'm using Iplanet 6 SP2, running on UNIX system. Thanks in advance for any help.

Answer 1

You say you've managed to get the JDBC driver working
in an application but not in a JSP. You also say that
the error you get is
"com.microsoft.jdbc.sqlserver.SQLServerDriver".
I'd be willing to bet that the exception that you have
got is a ClassNotFoundException. I.E. your application
server hasn't found the JDBC driver classes. The
application server probably doesn't use your current
CLASSPATH to look for classes. It will be setup within
the application server in some way and you'll need to
check your app server documentation to see how it is
done.
Try replacing
e.printStackTrace();with
e.printStackTrace(out);to get a full stack trace of your error.
ColTried it. Got this error when I tried to run the JSP.
Incompatible type for method. Can't convert javax.servlet.jsp.JspWriter to java.io.PrintWriter.
          e.printStackTrace(out);
I'm currently using Apache Tomcat 4.0.3 as my JSP/Servlet Container.
I'm also using Type 4 MS SQL Server 2000 JDBC driver version 2.0 on my NT4.0 Server.
Do I need to set my JDBC driver in my container? if so, how do I do that?