Add some library support to speed up looking for Java 1.7 changes in javadoc and simultaneously shorten the script a bit. Inspired by http://marxsoftware.blogspot.com/2011/03/jdk-7-new-interfaces-classes-enums-and.html

parallelSearchJdk7ApiDocsForSince17.groovy

#!/usr/bin/env groovy
// searchJdk7ApiDocsForSince17.groovy
@Grab(group='org.ccil.cowan.tagsoup', module='tagsoup', version='0.9.7')
@Grab(group='org.codehaus.gpars', module='gpars', version='0.11')
import groovyx.gpars.GParsPool
import java.util.concurrent.atomic.AtomicInteger

def xml = new XmlParser(new org.ccil.cowan.tagsoup.Parser()).parse("http://download.oracle.com/javase/7/docs/api/allclasses-frame.html")
def urls = xml.'**'.a.@href

AtomicInteger numUrlsProcessed = new AtomicInteger()
AtomicInteger numUrlsMatching = new AtomicInteger()
println "${urls.size()} total URLs to search for 1.7 text."
def withJava7 = new ArrayList<String>()
GParsPool.withPool(4){    
    urls.eachParallel
    {
       def match = false
       numUrlsProcessed.getAndIncrement()
       def eachUrl = "http://download.oracle.com/javase/7/docs/api/${it}"
       try
       {
          if (eachUrl.toURL().text.contains("1.7"))
          {
             numUrlsMatching.getAndIncrement()
             match = true
             withJava7.add(it)
          }
       }
       catch (Exception ex) // catch HTTP problems like 404 or 504.
       {
          println "ERROR trying to acces ${eachUrl}: ${ex.toString()}"
       }
       println "${numUrlsMatching} of ${numUrlsProcessed} match 1.7 (${match ? eachUrl : '-'})!"
    }
}

println "Javadoc files with 1.7: "
withJava7.each
{
   println "\t${it}"
}