[GROOVY-4753] CliBuilder#expandArgumentFiles throws StringIndexOutOfBoundsException on empty arguments

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 1.7.4
• Fix Version/s: 1.8-rc-4, 1.7.11
• Flags: Patch
• Assignee: Paul King
• Reporter: Jeffrey Adamson
• Created: 30/Mar/11 08:48
• Updated: 05/Apr/15 14:44
• Resolved: 30/Mar/11 17:18

Description

Pass a CliBuilder instance, in its default state with expandArugmentFiles = true, an argument array containing an empty argument ''.

expected: the clibuilder to parse the arguments
actual:

java.lang.StringIndexOutOfBoundsException: String index out of range: 1
	at java.lang.String.substring(String.java:1934)
        ....
	at groovy.util.CliBuilder.expandArgumentFiles(CliBuilder.groovy:296)
        ....

Attached is code showing how an argument array that parses when expandArgumentFiles is false, throws an exception when it is true.