Hi, I tried to fix NumberFormatException when i did tps-cert-find with non-integer/invalid range value for size and start.I was doing testing for tps-cert and then i came across this.I thought giving some additional info to users inplace of numberformat.I have done similar fix on rhel7 compile it and make a jar and test on rhel7 .I can share that patch if needed. Below are the test result. Before fix testing: 1. pki -h pki1.example.com -p 25080 tps-cert-find --start "gy" NumberFormatException: For input string: "gy" 2. pki -h pki1.example.com -p 25080 tps-cert-find --size "gy" NumberFormatException: For input string: "gy" 3. pki -p 25080 tps-cert-find --start 1789999999999999999999999999999999999999999999 NumberFormatException: For input string: "1789999999999999999999999999999999999999999999" After fix testing: 1. [root@pki1 ~]# pki -d /opt/rhqa_pki/certdb -c Secret123 -h pki1.example.com -p 25080 tps-cert-find --start "gy" Error: Enter valid integer value for size/start option usage: tps-cert-find [FILTER] [OPTIONS...] --help Show help options --size <size> Page size --start <start> Page start --token <ID> Token ID 2. [root@pki1 ~]# pki -d /opt/rhqa_pki/certdb -c Secret123 -h pki1.example.com -p 25080 tps-cert-find --size "hy" Error: Enter valid integer value for size/start option usage: tps-cert-find [FILTER] [OPTIONS...] --help Show help options --size <size> Page size --start <start> Page start --token <ID> Token ID 3. [root@pki1 ~]# pki -d /opt/rhqa_pki/certdb -c Secret123 -h pki1.example.com -p 25080 tps-cert-find --start 1 ----------------- 2 entries matched ----------------- Cert ID: 3d.20160720042931 Serial Number: 0x3d Subject: UID=ldapuser7,O=Token Key User Token ID: 40906145C76224192D78 Key Type: encryption Status: active User ID: ldapuser7 Create Time: Wed Jul 20 04:29:31 EDT 2016 ---------------------------- Number of entries returned 1 ---------------------------- 4. [root@pki1 ~]# pki -d /opt/rhqa_pki/certdb -c Secret123 -h pki1.example.com -p 25080 tps-cert-find --size 1 ----------------- 2 entries matched ----------------- Cert ID: 3c.20160720042931 Serial Number: 0x3c Subject: UID=ldapuser7,O=Token Key User Token ID: 40906145C76224192D78 Key Type: signing Status: active User ID: ldapuser7 Create Time: Wed Jul 20 04:29:31 EDT 2016 ---------------------------- Number of entries returned 1 ---------------------------- 5. [root@pki1 cert]# pki -d /opt/rhqa_pki/certdb -c Secret123 -h pki1.example.com -p 25080 tps-cert-find --start 1789999999999999999999999999999999999999999999 Error: Enter valid integer value for size/start option usage: tps-cert-find [FILTER] [OPTIONS...] --help Show help options --size <size> Page size --start <start> Page start --token <ID> Token ID Thanks Geetika