Kylo datasource oracle error

gistfile1.txt

2017-07-05 11:49:45 INFO  http-nio-8420-exec-4:DBCPConnectionPoolTableInfo:171 - Search For Tables against Controller Service: test-oracle (122b245e-015d-1000-fd59-c89a7f3ca046) with uri of jdbc:oracle:thin:@oracle:1521.
2017-07-05 11:49:45 ERROR http-nio-8420-exec-4:ThrowableMapper:43 - toResponse() caught throwable
java.lang.RuntimeException: Unable to list catalogs
        at com.thinkbiganalytics.schema.DBSchemaParser.listCatalogs(DBSchemaParser.java:89)
        at com.thinkbiganalytics.schema.DBSchemaParser.listTables(DBSchemaParser.java:148)
        at com.thinkbiganalytics.feedmgr.nifi.DBCPConnectionPoolTableInfo.getTableNamesForControllerService(DBCPConnectionPoolTableInfo.java:175)
        at com.thinkbiganalytics.feedmgr.nifi.DBCPConnectionPoolTableInfo.getTableNamesForControllerService(DBCPConnectionPoolTableInfo.java:77)
        at com.thinkbiganalytics.feedmgr.rest.controller.NifiIntegrationRestController.getTableNames(NifiIntegrationRestController.java:340)
        at sun.reflect.GeneratedMethodAccessor1234.invoke(Unknown Source)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
        at java.lang.reflect.Method.invoke(Method.java:498)
        at org.glassfish.jersey.server.model.internal.ResourceMethodInvocationHandlerFactory$1.invoke(ResourceMethodInvocationHandlerFactory.java:81)
        at org.glassfish.jersey.server.model.internal.AbstractJavaResourceMethodDispatcher$1.run(AbstractJavaResourceMethodDispatcher.java:144)
        at org.glassfish.jersey.server.model.internal.AbstractJavaResourceMethodDispatcher.invoke(AbstractJavaResourceMethodDispatcher.java:161)
        at org.glassfish.jersey.server.model.internal.JavaResourceMethodDispatcherProvider$ResponseOutInvoker.doDispatch(JavaResourceMethodDispatcherProvider.java:160)
        at org.glassfish.jersey.server.model.internal.AbstractJavaResourceMethodDispatcher.dispatch(AbstractJavaResourceMethodDispatcher.java:99)
        at org.glassfish.jersey.server.model.ResourceMethodInvoker.invoke(ResourceMethodInvoker.java:389)
        at org.glassfish.jersey.server.model.ResourceMethodInvoker.apply(ResourceMethodInvoker.java:347)
        at org.glassfish.jersey.server.model.ResourceMethodInvoker.apply(ResourceMethodInvoker.java:102)
        at org.glassfish.jersey.server.ServerRuntime$2.run(ServerRuntime.java:326)
        at org.glassfish.jersey.internal.Errors$1.call(Errors.java:271)
        at org.glassfish.jersey.internal.Errors$1.call(Errors.java:267)
        at org.glassfish.jersey.internal.Errors.process(Errors.java:315)
        at org.glassfish.jersey.internal.Errors.process(Errors.java:297)
        at org.glassfish.jersey.internal.Errors.process(Errors.java:267)
        at org.glassfish.jersey.process.internal.RequestScope.runInScope(RequestScope.java:317)
        at org.glassfish.jersey.server.ServerRuntime.process(ServerRuntime.java:305)
        at org.glassfish.jersey.server.ApplicationHandler.handle(ApplicationHandler.java:1154)
        at org.glassfish.jersey.servlet.WebComponent.serviceImpl(WebComponent.java:473)
Caused by: java.sql.SQLException: Failed to validate a newly established connection.
        at org.apache.tomcat.jdbc.pool.ConnectionPool.borrowConnection(ConnectionPool.java:813)
        at org.apache.tomcat.jdbc.pool.ConnectionPool.borrowConnection(ConnectionPool.java:628)