Another awkward log 2

gistfile1.txt

2012-12-04 14:43:35,265 [http-8080-2] DEBUG java.sql.Connection - {conn-100260} Connection
2012-12-04 14:43:35,265 [http-8080-2] DEBUG java.sql.Connection - {conn-100260} Preparing Statement:     SELECT to_char(i.fec_registro,'dd/mm/yyyy') fecha_registro,        i.cod_ave_inc cod_incidencia,        i.cod_prediagnos prediagnostico,        i.cod_cliente cod_cliente,        i.cli_raz_social raz_social,        i.num_ide_nu telefono,        i.cod_grupo_serv cod_grupo_servicio,        i.cod_servicio cod_servicio    FROM incidencia i  
2012-12-04 14:43:35,265 [http-8080-2] DEBUG java.sql.PreparedStatement - {pstm-100261} Executing Statement:     SELECT to_char(i.fec_registro,'dd/mm/yyyy') fecha_registro,        i.cod_ave_inc cod_incidencia,        i.cod_prediagnos prediagnostico,        i.cod_cliente cod_cliente,        i.cli_raz_social raz_social,        i.num_ide_nu telefono,        i.cod_grupo_serv cod_grupo_servicio,        i.cod_servicio cod_servicio    FROM incidencia i  
2012-12-04 14:43:35,265 [http-8080-2] DEBUG java.sql.PreparedStatement - {pstm-100261} Parameters: []
2012-12-04 14:43:35,265 [http-8080-2] DEBUG java.sql.PreparedStatement - {pstm-100261} Types: []
2012-12-04 14:43:35,265 [http-8080-2] DEBUG java.sql.ResultSet - {rset-100262} ResultSet
2012-12-04 14:43:35,265 [http-8080-2] DEBUG java.sql.ResultSet - {rset-100262} Header: [fecha_registro, cod_incidencia, prediagnostico, cod_cliente, raz_social, telefono, cod_grupo_servicio, cod_servicio]
2012-12-04 14:43:35,265 [http-8080-2] DEBUG java.sql.ResultSet - {rset-100262} Result: [21/09/2012, null, 1, 00069897, INVERSIONES OCEANIC SAC                      , 59208, 001, null]
2012-12-04 14:43:35,265 [http-8080-2] DEBUG com.ibatis.sqlmap.engine.cache.CacheModel - Cache 'Incidencia.Incidencia-cache': stored object '{cod_cliente=00069897, cod_servicio=null, raz_social=INVERSIONES OCEANIC SAC                      , telefono=59208, fec_registro=21/09/2012, cod_diagnostico=1, cod_incidencia=null, grupo_servicio=001...'
2012-12-04 14:43:35,265 [http-8080-2] DEBUG com.ibatis.common.jdbc.SimpleDataSource - Returned connection 2831517 to pool.
==>map::{cod_cliente=00069897, cod_servicio=null, raz_social=INVERSIONES OCEANIC SAC                      , telefono=59208, fec_registro=21/09/2012, cod_diagnostico=1, cod_incidencia=null, grupo_servicio=001}
java.lang.NullPointerException
	at pe.com.tdp.perifericos.comun.util.JqueryUtil.toJsonJqGrid(JqueryUtil.java:93)
	at pe.com.tdp.perifericos.averias.servlet.RptHistIncidenciaServlet.service(RptHistIncidenciaServlet.java:66)
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
	at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:233)
	at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191)
	at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127)
	at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:103)
	at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
	at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:293)
	at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:861)
	at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:606)
	at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:489)
	at java.lang.Thread.run(Unknown Source)