워드파일 생성중 오류

java.lang.NullPointerException
at com.threerabbitz.book.domain.a.J.a(SourceFile:280)
at com.threerabbitz.word.a.b.a(SourceFile:5128)
at com.threerabbitz.word.a.g.g(SourceFile:55)
at com.threerabbitz.word.a.g.a(SourceFile:41)
at com.threerabbitz.word.WordMaker.a(SourceFile:107)
at com.threerabbitz.book.controller.WordController.build(SourceFile:41)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at com.threerabbitz.base.h.b(SourceFile:1095)
at com.threerabbitz.base.i.a(SourceFile:53)
at com.threerabbitz.base.FrontFilter.doFilter(SourceFile:72)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:240)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:207)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:212)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:94)
at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:492)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:141)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:80)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:88)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:502)
at org.apache.coyote.ajp.AbstractAjpProcessor.process(AbstractAjpProcessor.java:870)
at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:684)
at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1539)
at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.run(NioEndpoint.java:1495)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
at java.lang.Thread.run(Thread.java:748)

위와같이 에러메세지가 나타나며 워드파일이 정상적으로 저장되지 않습니다.
문서를 새로만들기하여 전체 챕터를 그대로 붙여넣기 해서 만들었을때는 정상동작합니다.
내용의 문제는 아닌듯한데.. 마음같아서는 새로 문서를 만들고 싶으나 이력관리때문에 어렵습니다.
오류 원인 확인 요청드립니다.