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https://issues.apache.org/jira/browse/IO-179?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12640645#action_12640645
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Gwenaël Le Roux commented on IO-179:
------------------------------------
The issue is due to a call to String#substring(beginIndex,lastIndex) where
beginIndex>lastIndex.
The attached file is a patch that includes the updated test code and the
correction.
> StringIndexOutOfBounds exception on FilenameUtils.getPathNoEndSeparator
> -----------------------------------------------------------------------
>
> Key: IO-179
> URL: https://issues.apache.org/jira/browse/IO-179
> Project: Commons IO
> Issue Type: Bug
> Components: Utilities
> Affects Versions: 1.3.2, 1.4
> Environment: Javadoc says that method is text based. In any case, the
> problem has been reproduced in Windows and Linux.
> Reporter: Francisco Borges
> Fix For: 1.5
>
> Attachments: IO-179.patch
>
>
> public void testFilenameUtils() {
> String path = "/foo.xml";
> org.apache.commons.io.FilenameUtils.getPathNoEndSeparator(path);
> }
> Leads to:
> java.lang.StringIndexOutOfBoundsException: String index out of range: -1
> at java.lang.String.substring(String.java:1768)
> at org.apache.commons.io.FilenameUtils.doGetPath(FilenameUtils.java:705)
> at
> org.apache.commons.io.FilenameUtils.getPathNoEndSeparator(FilenameUtils.java:683)
>
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