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Rai Raman
New User
Joined: 28 Feb 2013
Posts: 2
Location: South Africa
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Hi all,
Has anybody tried using the jar files that come with IBM Data Studio in a custom java program?
I'm trying to connect to a DB2 db on Z/OS, and while I can do that using Data Studio with no issues, I keep getting a class not found exception when I run the custom java program.
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c:\temp2>dir
Volume in drive C has no label.
Volume Serial Number is 3206-6E75
Directory of c:\temp2
21/07/2013 17:00 <DIR> .
21/07/2013 17:00 <DIR> ..
09/04/2012 03:07 3,507,640 db2jcc.jar
09/04/2012 03:07 2,068 db2jcc_license_cisuz.jar
21/07/2013 17:07 2,973 EzJava.class
21/07/2013 17:13 3,195 EzJava.java
4 File(s) 3,515,876 bytes
2 Dir(s) 51,066,073,088 bytes free
c:\temp2>java -cp . EzJava
**** Enter class EzJava
Could not load JDBC driver
Exception: java.lang.ClassNotFoundException: com.ibm.db2.jcc.DB2Driver
java.lang.ClassNotFoundException: com.ibm.db2.jcc.DB2Driver
at java.net.URLClassLoader$1.run(Unknown Source)
at java.net.URLClassLoader$1.run(Unknown Source)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(Unknown Source)
at java.lang.ClassLoader.loadClass(Unknown Source)
at sun.misc.Launcher$AppClassLoader.loadClass(Unknown Source)
at java.lang.ClassLoader.loadClass(Unknown Source)
at java.lang.Class.forName0(Native Method)
at java.lang.Class.forName(Unknown Source)
at EzJava.main(EzJava.java:21)
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I've decompiled the jars and the class that the JVM cannot find is definitely there.
Thanks in advance,
Rai |
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Rai Raman
New User
Joined: 28 Feb 2013
Posts: 2
Location: South Africa
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Ok, I should really go back to Java 101.
Compile your code with both jar files:
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| javac -cp ./db2jcc.jar;./db2jcc_license_cisuz.jar EzJava.java |
Then, run with both jar files:
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| java -cp .;./db2jcc.jar;./db2jcc_license_cisuz.jar EzJava |
And that should work!
Regards,
Rai |
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agkshirsagar
Active Member
Joined: 27 Feb 2007
Posts: 691
Location: Earth
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Did someone just ask a question and answer it themselves?
Which is fine, but I was amused with the way it was answered.. like different person answering a question. 
Anyway, thanks for sharing that the issue is resolved. |
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Nic Clouston
Global Moderator
Joined: 10 May 2007
Posts: 2455
Location: Hampshire, UK
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| I think s/he was providing the solution to the next poor soul who has to do this so they were writing to that person. Makes sense? |
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dick scherrer
Moderator Emeritus
Joined: 23 Nov 2006
Posts: 19244
Location: Inside the Matrix
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Yup, I suspect that there will be more people doing this sort of thing.
This is probably something that will help multiple people going forwqard.
d |
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