[PHOENIX-3557] Provide better error message when user tries to run multiple IT tests

• Type: Improvement
• Status: Resolved
• Priority: Minor
• Resolution: Fixed
• Fix Version/s: 4.10.0
• Assignee: Josh Elser
• Reporter: Ted Yu
• Created: 03/Jan/17 18:55
• Updated: 06/Jan/17 06:42
• Resolved: 06/Jan/17 05:06

Description

With the following command:

bin/hbase --config /etc/hbase/conf org.apache.phoenix.end2end.End2EndTestDriver -r *index*

I got:

Exception in thread "main" java.util.regex.PatternSyntaxException: Dangling meta character '*' near index 0
*index*
^
	at java.util.regex.Pattern.error(Pattern.java:1955)
	at java.util.regex.Pattern.sequence(Pattern.java:2123)
	at java.util.regex.Pattern.expr(Pattern.java:1996)
	at java.util.regex.Pattern.compile(Pattern.java:1696)
	at java.util.regex.Pattern.<init>(Pattern.java:1351)
	at java.util.regex.Pattern.compile(Pattern.java:1028)
	at org.apache.phoenix.end2end.End2EndTestDriver$End2EndTestFilter.setPattern(End2EndTestDriver.java:78)
	at org.apache.phoenix.end2end.End2EndTestDriver.processOptions(End2EndTestDriver.java:114)

Error message can be refined to remind user that .* should be used in place of *

Thanks to elserj for the hint.