webshpere studio application developer 中 jndi 访问DATASOURCE出现下面的错误，请高手帮忙！
在服务器上我设置了DATasource是jdbc/ds1
Get connection failed.
javax.naming.NamingException: The JNDI operation "lookup"on the context "localhost/nodes/localhost/servers/server1" with the name "jdbc/ds1" failed. Please get the root cause Throwable contained in this NamingException for more information. Root exception is java.lang.NoClassDefFoundError: com/ibm/ejs/jts/jts/CurrentFactory
at com.ibm.ws.naming.jndicos.CNContextImpl.suspendTransaction(CNContextImpl.java:4064)
at com.ibm.ws.naming.jndicos.CNContextImpl.cosResolve(CNContextImpl.java:3521)
at com.ibm.ws.naming.jndicos.CNContextImpl.doLookup(CNContextImpl.java:1565)
at com.ibm.ws.naming.jndicos.CNContextImpl.doLookup(CNContextImpl.java:1525)
at com.ibm.ws.naming.jndicos.CNContextImpl.lookup(CNContextImpl.java:1225)
at com.ibm.ws.naming.util.WsnInitCtx.lookup(WsnInitCtx.java:132)
at javax.naming.InitialContext.lookup(InitialContext.java:359)
at com.portaldev.test.testJNDI.getJndi(testJNDI.java:57)
at com.portaldev.test.testJNDI.main(testJNDI.java:27)
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