Ein Fehler ist aufgetreten:

null

An exception occurred processing [gast/namenkommentar.jsp] at line [17]

14: 
15: 
16: <%
17:     int id = Integer.parseInt(request.getParameter("ID"));
18: 
19:     String formular = "namenkommentar";
20: 


Stacktrace:

org.apache.jasper.JasperException: An exception occurred processing [gast/namenkommentar.jsp] at line [17]

14: 
15: 
16: <%
17:     int id = Integer.parseInt(request.getParameter("ID"));
18: 
19:     String formular = "namenkommentar";
20: 


Stacktrace:
	at org.apache.jasper.servlet.JspServletWrapper.handleJspException(JspServletWrapper.java:626)
	at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:515)
	at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:385)
	at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:329)
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:741)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:231)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
	at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:53)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
	at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:202)
	at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:96)
	at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:541)
	at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:139)
	at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:92)
	at org.apache.catalina.valves.AbstractAccessLogValve.invoke(AbstractAccessLogValve.java:688)
	at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:74)
	at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:343)
	at org.apache.coyote.http2.StreamProcessor.service(StreamProcessor.java:365)
	at org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:65)
	at org.apache.coyote.http2.StreamProcessor.process(StreamProcessor.java:72)
	at org.apache.coyote.http2.StreamRunnable.run(StreamRunnable.java:35)
	at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128)
	at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628)
	at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
	at java.base/java.lang.Thread.run(Thread.java:829)
Caused by: java.lang.NumberFormatException: null
	at java.base/java.lang.Integer.parseInt(Integer.java:614)
	at java.base/java.lang.Integer.parseInt(Integer.java:770)
	at org.apache.jsp.gast.namenkommentar_jsp._jspService(namenkommentar_jsp.java:411)
	at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:70)
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:741)
	at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:474)
	... 24 more