Error HELP PLEASE --> Don't know where to look

I was working with an app, and came upon this error and really have no idea what it means.....can some JSP guru please decipher for me so I know where to look for the problem:

Internal Servlet Error:

org.apache.jasper.JasperException

at org.apache.jasper.runtime.JspRuntimeLibrary.introspecthelper(JspRuntimeLibrary.java:204)

at org.apache.jasper.runtime.JspRuntimeLibrary.introspect(JspRuntimeLibrary.java:152)

at jsp._0002fjsp_0002fstaff_0005fspecific_0005finput_0002ejspstaff_0005fspecific_0005finput_jsp_289._jspService(_0002fjsp_0002fstaff_0005fspecific_0005finput_0002ejspstaff_0005fspecific_0005finput_jsp_289.java:162)

at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:119)

at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)

at org.apache.jasper.servlet.JspServlet$JspCountedServlet.service(JspServlet.java:130)

at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)

at org.apache.jasper.servlet.JspServlet$JspServletWrapper.service(JspServlet.java:282)

at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:429)

at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:500)

at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)

at org.apache.tomcat.core.ServletWrapper.doService(ServletWrapper.java:405)

at org.apache.tomcat.core.Handler.service(Handler.java:287)

at org.apache.tomcat.core.ServletWrapper.service(ServletWrapper.java:372)

at org.apache.tomcat.core.ContextManager.internalService(ContextManager.java:797)

at org.apache.tomcat.core.ContextManager.service(ContextManager.java:743)

at org.apache.tomcat.service.http.HttpConnectionHandler.processConnection(HttpConnectionHandler.java:213)

at org.apache.tomcat.service.TcpWorkerThread.runIt(PoolTcpEndpoint.java:416)

at org.apache.tomcat.util.ThreadPool$ControlRunnable.run(ThreadPool.java:501)

at java.lang.Thread.run(Thread.java:484)

Root cause:

java.lang.reflect.InvocationTargetException: java.lang.NullPointerException

at com.infomed.jsp.SS_Input_Bean.setCode09(SS_Input_Bean.java:182)

at java.lang.reflect.Method.invoke(Native Method)

at org.apache.jasper.runtime.JspRuntimeLibrary.introspecthelper(JspRuntimeLibrary.java:200)