library(RJDBC)
drv <- JDBC("oracle.jdbc.OracleDriver",classPath = "D:/Program_Files/Oracle/osd/sqldeveloper/jdbc/lib/ojdbc6.jar","`")
con <- dbConnect(drv, "jdbc:oracle:thin:@1.1.1.1:1111:dbName", "user", "password")

Error in .jcall(drv@jdrv, "Ljava/sql/Connection;", "connect", as.character(url)[1],  :
java.sql.SQLException: ORA-00604: error occurred at recursive SQL level 1
ORA-01882: timezone region not found