compiling hadoop

[Thushara Wijeratna]

hi,

i can't compile hadoop/util/GenericOptionsParser.java as there seems to be
no method called:
OptionBuilder.withArgPattern

this bit fails:

    Option property = OptionBuilder.withArgName("property=value")
    .hasArgs()
    .withArgPattern("=", 1)
    .withDescription("use value for given property")
    .create('D');

with:

cannot find symbol method withArgPattern(java.lang.String,int)

this may be a new method in commons CLI that is not available in the 1.2
version. where do i find this?

thanks,
thushara