Data Import Tool: characters are not reconsigned for provided office

[santoshconflux]

Reported by Daniel at https://mifosforge.jira.com/browse/MIFOSX-2523
Original Description:

After I exported the clients for a new office, the following error appeared when I tried to download the Excel Sheet to import the groups:

IN THE DATA IMPORT TOOL PAGE:
java.lang.IllegalStateException: Expected BEGIN_OBJECT but was STRING at line 1 column 1

IN GIT BASH:
$ gradle clean tomcatrunwar
The ConfigurationContainer.add() method has been deprecated and is scheduled to be removed in Gradle 2.0. Please use the create() method instead.
The TaskContainer.add() method has been deprecated and is scheduled to be removed in Gradle 2.0. Please use the create() method instead.
:clean
:pmdMain
:compileJava
warning: [options] bootstrap class path not set in conjunction with -source 1.6
1 warning
:processResources
:classes
:war
:tomcatRunWar
SLF4J: Class path contains multiple SLF4J bindings.
SLF4J: Found binding in [jar:file:/C:/gradle-1.6/lib/logback-classic-1.0.9.jar!/org/slf4j/impl/StaticLoggerBinder.class]
SLF4J: Found binding in [jar:file:/C:/Users/Daniel/DataImportTool/build/tmp/tomcatRunWar/work/Tomcat/localhost/DataImportTool/WEB-INF/lib/logback-classic-1.0.13.jar!/org/slf4j/impl/StaticLoggerBinder.class]
SLF4J: See http://www.slf4j.org/codes.html#multiple_bindings for an explanation.
SLF4J: Actual binding is of type [ch.qos.logback.classic.util.ContextSelectorStaticBinder]
Started Tomcat Server
The Server is running at http://localhost:8070/DataImportTool
08:41:47.313 [http-bio-8070-exec-3] INFO o.o.m.d.http.MifosRestClient - Status: 404
Servlet.service() for servlet [DataImportServlet] in context with path [/DataImportTool] threw exception
com.google.gson.JsonSyntaxException: java.lang.IllegalStateException: Expected BEGIN_OBJECT but was STRING at line 1 column 1
at com.google.gson.internal.bind.ReflectiveTypeAdapterFactory$Adapter.read(ReflectiveTypeAdapterFactory.java:176)
at com.google.gson.Gson.fromJson(Gson.java:803)
at com.google.gson.Gson.fromJson(Gson.java:768)
at com.google.gson.Gson.fromJson(Gson.java:717)
at com.google.gson.Gson.fromJson(Gson.java:689)
at org.openmf.mifos.dataimport.http.MifosRestClient.createAuthToken(MifosRestClient.java:116)
at org.openmf.mifos.dataimport.handler.client.GroupDataImportHandler.upload(GroupDataImportHandler.java:133)
at org.openmf.mifos.dataimport.web.DataImportServlet.parseAndUpload(DataImportServlet.java:64)
at org.openmf.mifos.dataimport.web.DataImportServlet.doPost(DataImportServlet.java:43)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:647)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:728)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:305)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:222)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:123)
at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:502)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:171)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:99)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:118)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:408)
at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1023)
at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:589)
at org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:310)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
at java.lang.Thread.run(Thread.java:745)
Caused by: java.lang.IllegalStateException: Expected BEGIN_OBJECT but was STRING at line 1 column 1
at com.google.gson.stream.JsonReader.beginObject(JsonReader.java:374)
at com.google.gson.internal.bind.ReflectiveTypeAdapterFactory$Adapter.read(ReflectiveTypeAdapterFactory.java:165)