[CLI-8] Line separator as first char for helpformatter (footer) throws exception

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 1.0
• Fix Version/s: 1.1
• Component/s: CLI-1.x

Environment

Operating System: All
Platform: PC

• Bugzilla Id: 21215
• Assignee: Unassigned
• Reporter: Teemu Kanstrén
• Created: 01/Jul/03 16:34
• Updated: 15/Sep/08 22:41
• Resolved: 15/Sep/08 22:41

Description

This might apply for more than just the footer. I only tested footer so don't
know.

compile and run this example and you will get an exception

public class CliError
{
  public static void main(String[] args)
  {
    Options options = new Options();
    HelpFormatter formatter = new HelpFormatter();
    String footer = System.getProperty("line.separator")+"Hello world.";
    formatter.printHelp(80, "foobar", "", options, footer, true);
  }
}

result is:

java.lang.StringIndexOutOfBoundsException: String index out of range: -1
	at java.lang.String.charAt(String.java:582)
	at org.apache.commons.cli.HelpFormatter.rtrim(HelpFormatter.java:505)
	at org.apache.commons.cli.HelpFormatter.renderWrappedText(HelpFormatter.java:416)
	at org.apache.commons.cli.HelpFormatter.printWrapped(HelpFormatter.java:324)
	at org.apache.commons.cli.HelpFormatter.printWrapped(HelpFormatter.java:318)
	at org.apache.commons.cli.HelpFormatter.printHelp(HelpFormatter.java:212)
	at org.apache.commons.cli.HelpFormatter.printHelp(HelpFormatter.java:165)
	at com.nokia.em.bts.swupdateautomate.test.CliError.main(CliError.java:21)

Exception in thread "main" Process terminated with exit code 1

Issue Links

• is duplicated by: CLI-18 HelpFormatter.printHelp(String cmdLineSyntax, String header, Options options, String footer) throws exception if footer contains CR LF