Engine API gives 500 Error

Camunda 7 Topics Discussion & Questions
,
1

when we try to access the camunda task list page , the default filter loads on the LHS , the results of those filter are not displayed, instead when debugged it shows some other 500 error .
URL of the Camunda task list page :
https://site-bla-bla/camunda/app/tasklist/default/#/?searchQuery=[]&variableCaseHandling=all&filter=0c9e873e-d333-11ea-92dd-0a58c0a85414&sorting=[{"sortBy":"created","sortOrder":"desc"}]

Error from console :

Request :
https://site-bla-bla/camunda/api/engine/engine/default/filter/0c9e873e-d333-11ea-92dd-0a58c0a85414/list?firstResult=0&maxResults=15
Response code : 500
Response :
{“timestamp”:“2020-08-07T09:25:49.295+0000”,“status”:500,“error”:“Internal Server Error”,“message”:“Cannot create a session after the response has been committed”,“path”:"/camunda/api/engine/engine/default/filter/0c9e873e-d333-11ea-92dd-0a58c0a85414/list"}

Screenshot :

image
image1124×480 26.4 KB

2

Check camunda’s own logs for more details about the error.

3

@Niall : i did check on the error logs and i can see these logs

2020-08-07 09:12:30.727 ERROR 1 — [nio-8080-exec-4] o.a.c.c.C.[.[.[.[Engine Api] : Servlet.service() for servlet [Engine Api] in context with path [/camunda] threw exception

java.lang.IllegalStateException: Cannot create a session after the response has been committed
at org.apache.catalina.connector.Request.doGetSession(Request.java:3007) ~[tomcat-embed-core-9.0.21.jar:9.0.21]
at org.apache.catalina.connector.Request.getSession(Request.java:2442) ~[tomcat-embed-core-9.0.21.jar:9.0.21]
at org.apache.catalina.connector.RequestFacade.getSession(RequestFacade.java:908) ~[tomcat-embed-core-9.0.21.jar:9.0.21]
at org.apache.catalina.connector.RequestFacade.getSession(RequestFacade.java:920) ~[tomcat-embed-core-9.0.21.jar:9.0.21]
at javax.servlet.http.HttpServletRequestWrapper.getSession(HttpServletRequestWrapper.java:250) ~[tomcat-embed-core-9.0.21.jar:9.0.21]
at javax.servlet.http.HttpServletRequestWrapper.getSession(HttpServletRequestWrapper.java:250) ~[tomcat-embed-core-9.0.21.jar:9.0.21]
at javax.servlet.http.HttpServletRequestWrapper.getSession(HttpServletRequestWrapper.java:250) ~[tomcat-embed-core-9.0.21.jar:9.0.21]
at javax.servlet.http.HttpServletRequestWrapper.getSession(HttpServletRequestWrapper.java:250) ~[tomcat-embed-core-9.0.21.jar:9.0.21]

4