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https://issues.apache.org/jira/browse/TEXT-211?focusedWorklogId=750976&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-750976
]
ASF GitHub Bot logged work on TEXT-211:
---------------------------------------
Author: ASF GitHub Bot
Created on: 31/Mar/22 12:51
Start Date: 31/Mar/22 12:51
Worklog Time Spent: 10m
Work Description: garydgregory commented on a change in pull request #281:
URL: https://github.com/apache/commons-text/pull/281#discussion_r839568158
##########
File path: src/main/java/org/apache/commons/text/TextStringBuilder.java
##########
@@ -1850,7 +1850,25 @@ public boolean equals(final Object obj) {
* @return true if the builders contain the same characters in the same
order
*/
public boolean equals(final TextStringBuilder other) {
- return other != null && Arrays.equals(buffer, other.buffer);
+ if (this == other) {
+ return true;
+ }
+ if (other == null) {
+ return false;
+ }
+ if (this.size != other.size) {
+ return false;
+ }
+ // Be aware not to use Arrays.equals(buffer, other.buffer) for
equals() method
+ // as length of the buffers may be different (TEXT-211)
Review comment:
They cannot be different by the time you get here though, can they?
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Issue Time Tracking
-------------------
Worklog Id: (was: 750976)
Time Spent: 5h 50m (was: 5h 40m)
> TextStringBuilder equals method changed behaviour from 1.8 to 1.9
> -----------------------------------------------------------------
>
> Key: TEXT-211
> URL: https://issues.apache.org/jira/browse/TEXT-211
> Project: Commons Text
> Issue Type: Bug
> Affects Versions: 1.9
> Reporter: Nikolaos Georgiou
> Priority: Major
> Time Spent: 5h 50m
> Remaining Estimate: 0h
>
> We found a regression (or breaking compatibility change) in the
> TextStringBuilder equals method when upgrading commons-text from 1.8 to 1.9
>
> The 1.8 version (
> [https://github.com/apache/commons-text/blob/commons-text-1.8/src/main/java/org/apache/commons/text/TextStringBuilder.java#L2915]
> ) would only compare the parts of the buffer that fall within the range
> 0..size.
> The 1.9 version (
> [https://github.com/apache/commons-text/blob/rel/commons-text-1.9/src/main/java/org/apache/commons/text/TextStringBuilder.java#L1855]
> ) compares the entire buffer arrays.
> If a TextStringBuilder has extra capacity in the buffer, comparison fails.
>
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