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  • Subject: switching from toolbox to native DB2 JDBC drivers
  • From: "Luther Ananda Miller" <luther.miller@xxxxxxxxxx>
  • Date: Fri, 28 Jan 2000 12:10:18 +0100
  • Organization: HYPERe

I am attempting to switch a server app (servlet running under websphere
2.02) on our AS/400 (JDK 1.1.7) over from using the toolbox JDBC drivers to
the native DB2 drivers.

The connection manager is unable to open a connection.

If I use the Toolbox instead of the DB2 native drivers, then I do not get
any of these problems.
I tried adding /QIBM/ProdData/Java400/jdk117/db2_classes.jar to my class
path in the bootstrap props but that did not seem to make a difference (I
think they already in the system classpath which is set to be used).

If anyone knows what I am doing wrong, or how to correct this, please let me
know! Thanks!

TIA,
Luther

PS: Exception details from the logs:


The servletservice error_log has the following Exception (this occurs when
the connection manager is asked to provide a connection):

[28 January 2000 20:04:56] Exception raised in servlet invoker.
[28 January 2000 20:04:56] START EXCEPTION BLOCK
[28 January 2000 20:04:56] com.ibm.servlet.engine.SEInvokerException:
java.lang.UnsatisfiedLinkError
      com/ibm/db2/jdbc/app/T.initTrace()V+189 (T.java:103)
      com/ibm/db2/jdbc/app/DB2Driver.<clinit>()V+36 (DB2Driver.java:147)

com/ibm/servlet/connmgr/IBMJdbcConnPool.addConnection(Lcom/ibm/servlet/connm
gr/IBMConnSpec;)Lcom/ibm/servlet/connmgr/IBMConnection;+11
(IBMJdbcConnPool.java:136)

com/ibm/servlet/connmgr/IBMConnPool.getConnectionFromPool(Lcom/ibm/servlet/c
onnmgr/IBMConnSpec;Ljava/lang/String;)Lcom/ibm/servlet/connmgr/IBMConnection
;+169 (IBMConnPool.java:452)

com/ibm/servlet/connmgr/IBMConnMgr.getIBMConnection(Lcom/ibm/servlet/connmgr
/IBMConnSpec;Ljava/lang/String;)Lcom/ibm/servlet/connmgr/IBMConnection;+33
(IBMConnMgr.java:398)

com/ibm/servlet/connmgr/IBMConnMgr.getIBMConnection(Lcom/ibm/servlet/connmgr
/IBMConnSpec;)Lcom/ibm/servlet/connmgr/IBMConnection;+1
(IBMConnMgr.java:367)

com/hypere/ebiz/server/RequestServerHttpServlet.processRequests(Ljavax/servl
et/http/HttpSession;[Lcom/hypere/ebiz/edata/Request;)[Lcom/hypere/ebiz/edata
/Response;+57 (RequestServerHttpServlet.java:450)

com/hypere/ebiz/server/RequestServerHttpServlet.doPost(Ljavax/servlet/http/H
ttpServletRequest;Ljavax/servlet/http/HttpServletResponse;)V+133
(RequestServerHttpServlet.java:125)

javax/servlet/http/HttpServlet.service(Ljavax/servlet/http/HttpServletReques
t;Ljavax/servlet/http/HttpServletResponse;)V+142 (HttpServlet.java:521)

javax/servlet/http/HttpServlet.service(Ljavax/servlet/ServletRequest;Ljavax/
servlet/ServletResponse;)V+25 (HttpServlet.java:588)

com/sun/server/ServletState.callService(Ljavax/servlet/ServletRequest;Ljavax
/servlet/ServletResponse;)V+50 (ServletState.java:316)

com/sun/server/ServletManager.callServletService(Ljava/lang/String;Ljavax/se
rvlet/ServletRequest;Ljavax/servlet/ServletResponse;)V+81
(ServletManager.java:1323)

com/ibm/servlet/engine/SEServletManager.callServletService(Ljava/lang/String
;Ljavax/servlet/ServletRequest;Ljavax/servlet/ServletResponse;)V+12
(SEServletManager.java:133)

com/sun/server/http/InvokerServlet.service(Ljavax/servlet/http/HttpServletRe
quest;Ljavax/servlet/http/HttpServletResponse;)V+131
(InvokerServlet.java:104)

javax/servlet/http/HttpServlet.service(Ljavax/servlet/ServletRequest;Ljavax/
servlet/ServletResponse;)V+25 (HttpServlet.java:588)

com/sun/server/ServletState.callService(Ljavax/servlet/ServletRequest;Ljavax
/servlet/ServletResponse;)V+50 (ServletState.java:316)

com/sun/server/ServletManager.callServletService(Ljava/lang/String;Ljavax/se
rvlet/ServletRequest;Ljavax/servlet/ServletResponse;)V+81
(ServletManager.java:1323)

com/ibm/servlet/engine/SEServletManager.callServletService(Ljava/lang/String
;Ljavax/servlet/ServletRequest;Ljavax/servlet/ServletResponse;)V+12
(SEServletManager.java:133)
      com/sun/server/ProcessingState.invokeTargetServlet()V+106
(ProcessingState.java:434)

com/sun/server/http/HttpProcessingState.execute(Lcom/sun/server/ProcessingSt
age;)V+29 (HttpProcessingState.java:93)

com/sun/server/ProcessingSupport.process(Lcom/sun/server/ProcessingState;Lja
vax/servlet/ServletRequest;Ljavax/servlet/ServletResponse;)Z+73
(ProcessingSupport.java:260)

com/sun/server/Service.process(Lcom/sun/server/ProcessingState;Ljavax/servle
t/ServletRequest;Ljavax/servlet/ServletResponse;)Z+11 (Service.java:229)

com/ibm/servlet/engine/SELauncher.processMultiThreaded(Lcom/ibm/servlet/engi
ne/SEService;Lcom/ibm/servlet/engine/SEConnectionHandler;)Z+13
(SEEngine.java:563)

com/ibm/servlet/engine/SEEngine.service(Lcom/ibm/servlet/engine/api/IAppServ
erConnection;)V+117 (SEEngine.java:312)

com/ibm/servlet/engine/api/ServerEntry.service(Lcom/ibm/servlet/engine/api/I
ServerRequestConnection;)I+89 (ServerEntry.java:201)

com/ibm/servlet/engine/nativeEntry/NativeServerEntry.service(JJILjava/lang/S
tring;Ljava/lang/String;)I+48 (NativeServerEntry.java:144)



The jvm_stderr.log is filled with the following exceptions (this exception
appears to occur when the servlet is intitialized, thus initializing the
connection manager):

java.lang.ClassNotFoundException:
com.ibm.security12.sun.security.provider.IdentityDatabase
      java/security/IdentityScope.initializeSystemScope()V+11
(IdentityScope.java:65)

java/security/IdentityScope.getSystemScope()Ljava/security/IdentityScope;+6
(IdentityScope.java:115)
      sun/tools/jar/JarVerifierStream.<init>(Ljava/io/InputStream;)V+80
(JarVerifierStream.java:88)

com/ibm/servlet/classloader/JarFileClassProvider.hasResource(Ljava/lang/Stri
ng;)Z+43 (JarFileClassProvider.java:88)

com/ibm/servlet/classloader/JarDirClassProvider.hasResource(Ljava/lang/Strin
g;)Z+7 (JarDirClassProvider.java:104)

com/ibm/servlet/classloader/DynamicClassLoader.getNonSystemResourceAsStream(
Ljava/lang/String;)Ljava/io/InputStream;+26 (DynamicClassLoader.java:60)

com/ibm/servlet/classloader/ClassLoaderTemplate.getResourceAsStream(Ljava/la
ng/String;)Ljava/io/InputStream;+9 (ClassLoaderTemplate.java:68)

com/ibm/servlet/classloader/PowerClassLoader.getNonSystemResourceAsStream(Lj
ava/lang/String;)Ljava/io/InputStream;+4 (PowerClassLoader.java:59)

com/ibm/servlet/classloader/ClassLoaderTemplate.getResourceAsStream(Ljava/la
ng/String;)Ljava/io/InputStream;+9 (ClassLoaderTemplate.java:68)

com/ibm/servlet/engine/SEServletManager.loadServlet(Ljava/lang/String;)V+32
(SEServletManager.java:163)
      com/sun/server/ServletManager.loadStartupServlets()V+73
(ServletManager.java:490)
      com/sun/server/http/HttpService.run()V+181 (HttpService.java:195)
      java/lang/Thread.run()V+11 (Thread.java:466)

luther.miller @ hypere.com


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