Oracle and J9

Hi
I'm traying to use J9 VM on PocketPc to conect on Oracle Server
but I'm getting excaption

Exception in thread "main" java.lang.AbstractMethodError:
java/sql/Driver.connect(Ljava/lang/String;Ljava/util/Hashtable;)Ljava/sql/Connec
tion;
at java.sql.DriverManager.getConnection(Unknown Source)   at
java.sql.DriverManager.getConnection(Unknown Source)            at


for this code on the pocketpc, if I try this on Desktop it works

DriverManager.registerDriver (new oracle.jdbc.driver.OracleDriver());
conn = DriverManager.getConnection ("jdbc:oracle:thin:@host",
"usr, "pass");

I'm using ojdbc14.jar and jdbcjsr169.jar

thx for help