java - Not able to connect with Sybase database -


in java trying connect sybase database through java program shown below 

public static void connect() {          sybdriver sybdriver = null;         connection conn;          try {             sybdriver = (sybdriver) class.forname(                 //  "com.sybase.jdbc3.jdbc.sybdriver").newinstance();                     "com.sybase.jdbc2.jdbc.sybdriver").newinstance();             system.out.println("driver loaded");             conn = drivermanager.getconnection(url, username, password);             boolean istrue = conn.isvalid(3);             system.out.println(istrue);

but getting below exception

driver loaded

exception in thread "main" java.lang.abstractmethoderror: com.sybase.jdbc2.jdbc.sybconnection.isvalid(i)z     @ connectiontry.connect(connectiontry.java:97)     @ connectiontry.main(connectiontry.java:23)

i have done analysis in google have came know jconnn.jar missing issue method isvalid(i)z not there in jconn2.jar not there please advise how overcome error please.

the driver using - based on class name in stacktrace - jdbc 2 driver. isvalid method added in java 6 (or: jdbc 4), can't use driver doesn't implement it.

you either need upgrade newer driver: contact sybase that, or not call isvalid method. in code show there no reason call it: created connection, of course valid. method intended check validity of long-living connections (eg in context of connection pool).


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