fix for NUTCH-2031 contributed by Sujen Shah

[sujen1412]

No description provided.

[chrismattmann]

@sujen1412 I am seeing this:

    [javac] Compiling 204 source files to <https://builds.apache.org/job/Nutch-trunk/ws/trunk/build/classes>
    [javac] <https://builds.apache.org/job/Nutch-trunk/ws/trunk/src/java/org/apache/nutch/service/resources/AdminResource.java>:26: error: cannot find symbol
    [javac] import org.apache.nutch.service.model.response.NutchServerInfo;
    [javac]                                               ^
    [javac]   symbol:   class NutchServerInfo
    [javac]   location: package org.apache.nutch.service.model.response
    [javac] <https://builds.apache.org/job/Nutch-trunk/ws/trunk/src/java/org/apache/nutch/service/resources/AdminResource.java>:39: error: cannot find symbol
    [javac]   public NutchServerInfo getServerStatus(){
    [javac]          ^
    [javac]   symbol:   class NutchServerInfo
    [javac]   location: class AdminResource
    [javac] <https://builds.apache.org/job/Nutch-trunk/ws/trunk/src/java/org/apache/nutch/service/resources/AdminResource.java>:40: error: cannot find symbol
    [javac]     NutchServerInfo serverInfo = new NutchServerInfo();
    [javac]     ^
    [javac]   symbol:   class NutchServerInfo
    [javac]   location: class AdminResource
    [javac] <https://builds.apache.org/job/Nutch-trunk/ws/trunk/src/java/org/apache/nutch/service/resources/AdminResource.java>:40: error: cannot find symbol
    [javac]     NutchServerInfo serverInfo = new NutchServerInfo();
    [javac]                                      ^
    [javac]   symbol:   class NutchServerInfo
    [javac]   location: class AdminResource
    [javac] Note: <https://builds.apache.org/job/Nutch-trunk/ws/trunk/src/java/org/apache/nutch/crawl/CrawlDbReader.java> uses unchecked or unsafe operations.
    [javac] Note: Recompile with -Xlint:unchecked for details.
    [javac] 4 errors

Looks like you forgot to add NutchServerInfo. Can you please add it?