HTTP Status 500 – Internal Server Error


Type Exception Report

Description The server encountered an unexpected condition that prevented it from fulfilling the request.

Exception

java.util.ConcurrentModificationException
	java.util.ArrayList$SubList.checkForComodification(ArrayList.java:1241)
	java.util.ArrayList$SubList.size(ArrayList.java:1050)
	java.util.AbstractList.clear(AbstractList.java:234)
	servlets.FamilyStoryDetails.doGet(FamilyStoryDetails.java:35)
	javax.servlet.http.HttpServlet.service(HttpServlet.java:634)
	javax.servlet.http.HttpServlet.service(HttpServlet.java:741)
	org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:53)

Note The full stack trace of the root cause is available in the server logs.


Apache Tomcat/9.0.31 (Ubuntu)