check the validationQuerySQL, may be you can change to this.
if (this.validationQuerySQL != null) { if ( ! this.validationQuerySQL.toLowerCase().trim().startsWith("select ")) throw new IllegalArgumentException("connection calidate SQL must start with 'select '"); }
check the validationQuerySQL, may be you can change to this.
if (this.validationQuerySQL != null) { if ( ! this.validationQuerySQL.toLowerCase().trim().startsWith("select ")) throw new IllegalArgumentException("connection calidate SQL must start with 'select '"); }