java.util.NoSuchElementException when trying to rollback

I am getting the following:

LiquiBase Update Failed: Unknown Reason.  For more information, use the --logLevel flag)
SEVERE 4/9/10 12:52 PM:liquibase: Unknown Reason
java.util.NoSuchElementException
at java.util.HashMap$HashIterator.nextEntry(HashMap.java:796)
at java.util.HashMap$KeyIterator.next(HashMap.java:828)
at liquibase.integration.commandline.Main.doMigration(Main.java:683)
at liquibase.integration.commandline.Main.main(Main.java:105)

when I try to issue a rollback against a PostgreSQL database. Running 2.0-RC1 but this also fails on 1.9.5 release.

This is the only changeset:

<?xml version="1.0" encoding="UTF-8"?>

<databaseChangeLog
    xmlns=“http://www.liquibase.org/xml/ns/dbchangelog/1.9”
    xmlns:xsi=“http://www.w3.org/2001/XMLSchema-instance”
    xsi:schemaLocation=“http://www.liquibase.org/xml/ns/dbchangelog/1.9 http://www.liquibase.org/xml/ns/dbchangelog/dbchangelog-1.9.xsd”>

 
    Persons Table
   
      <column name=“id” autoIncrement=“true”  type=“serial”>
     
      <column name=“last_name”  type=“VARCHAR( 100)”>
      <column name=“birthdate”  type=“DATE”/>
   
   
     
   
 

I cannot duplicate the error.  What is the command line you are running?  Can you try it with the newest 2.0 build from liquibase.org/ci/latest ?

Nathan