java.lang.NullPointerException: This exception has no message.

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JBWEB000236: Servlet.service() for servlet SchedulerServlet threw exception: java.lang.NullPointerException

This exception has no message.

java.lang.NullPointerException: 	at org.apache.jsp.jsp.EditDynamicScheduler_jsp._jspService(EditDynamicScheduler_jsp.java:179)	at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:69)	at javax.servlet.http.HttpServlet.service(HttpServlet.java:847)	at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:365)	at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:309)	at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:242)	at javax.servlet.http.HttpServlet.service(HttpServlet.java:847)	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:295)