[LANG-1193] ordinalIndexOf("abc", "ab", 1) gives incorrect answer of -1 (correct answer should be 0)

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 3.4
• Fix Version/s: 3.5

Environment

OS X Yosemite 10.10.5. Maven project.

• Assignee: Unassigned
• Reporter: Qin Li
• Created: 11/Dec/15 10:30
• Updated: 19/Oct/16 07:00
• Resolved: 11/Dec/15 13:47

Description

In Apache Commons Lang 3.4, StringUtils.ordinalIndexOf("abc", "ab", 1) gives incorrect answer of -1 (correct answer should be 0)。but StringUtils.ordinalIndexOf("abc", "a", 1) gives correct answer of 0.

Based on the above mentioned observation, the bug occurrs if the searchStr is of length > 1, and locates at the index 0 of the str.

In Apache Commons Lang 2.6, this bug is not observed.

Issue Links

• relates to: LANG-1077 [PATCH] StringUtils.ordinalIndexOf("aaaaaa", "aa", 2) should return 2