If you have a problem with GET parameters in URL. Edit Tomcat's conf/server.xml file and add the following attribute to the correct Connector element: URIEncoding="UTF-8".
8080" maxHttpHeaderSize="8192"
maxThreads="150" minSpareThreads="25" maxSpareThreads="75"
enableLookups="false" redirectPort="8443" acceptCount="100"
connectionTimeout="20000" disableUploadTimeout="true"
URIEncoding="UTF-8"
/>
have a nice time.