CAIM Connector fails to start: HttpRequestMethodNotSupportedException: Request method 'GET' not supported

Products

• CA Identity Manager
• CA Identity Portal

Issue/Introduction

Identity Portal cannot create a connection to IDM during startup:

2022-08-02 12:41:03,226 ERROR [com.idmlogic.sigma.workers.utils.ExceptionsHelper] (default task-4) : org.springframework.web.HttpRequestMethodNotSupportedException: Request method 'GET' not supported
 at org.springframework.web.servlet.mvc.method.RequestMappingInfoHandlerMapping.handleNoMatch(RequestMappingInfoHandlerMapping.java:204)
 at org.springframework.web.servlet.handler.AbstractHandlerMethodMapping.lookupHandlerMethod(AbstractHandlerMethodMapping.java:371)
 at org.springframework.web.servlet.handler.AbstractHandlerMethodMapping.getHandlerInternal(AbstractHandlerMethodMapping.java:311)
 at org.springframework.web.servlet.handler.AbstractHandlerMethodMapping.getHandlerInternal(AbstractHandlerMethodMapping.java:60)
 at org.springframework.web.servlet.handler.AbstractHandlerMapping.getHandler(AbstractHandlerMapping.java:352)
 at org.springframework.web.servlet.DispatcherServlet.getHandler(DispatcherServlet.java:1123)
 at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:934)
 at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:895)
 at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:967)
 at org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:858)
 at javax.servlet.http.HttpServlet.service(HttpServlet.java:686)
 at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:843)
 at javax.servlet.http.HttpServlet.service(HttpServlet.java:791)......

Resolution

Solution 1. Clear browser cache, and restart the connector from the Identity Portal Admin UI.

Solution 2. Check different browsers: Firefox, Chrome etc.