Bamboo fails to export when no plans are configured

logs,
Caused by: java.lang.NullPointerException
at com.atlassian.bamboo.migration.XmlMigrator.exportXml(XmlMigrator.java:286)
at com.atlassian.bamboo.migration.XmlMigrator$$FastClassByCGLIB$$b6578fc7.invoke(<generated>)
at net.sf.cglib.proxy.MethodProxy.invoke(MethodProxy.java:149)

Need to put in a check before;

                for (int i = 0; i < buildDirectories.length; i++)

to see whether buildDirectories is null