How to fix the problem related to the empty input controls tab.

The problem appeared after upgrade from v4.2.* to v5.6.

First of all, I would like to describe the design of the reports in which this problem was identified:

• Main report connected with Linked report via hyperlink and input controls that should pass some values to the Linked report

• Linked report contained Back button that should return user back to Main report with the same input controls/values

Description of the problem:

• user executed the Main report - input controls (in page) were shown in the Main report

• user navigated to Linked report and then clicked Back button

• user was returned to the Main report, however input controls area was blank

In jasperserver.log file this was reflected with the stack trace that I quote below:

2014-11-25 14:48:40,244 ERROR GenericExceptionMapper,http-apr-8560-exec-6:46 - Unexpected error occurs
com.sun.jersey.api.NotFoundException:
null for uri:
http://localhost:8560/jasperserver-pro/rest_v2/reportsrepo:/organizations/organization_1/Structured_query/structural_data/yearly_trend_cg_ms/options?_=1416919719598   
at com.sun.jersey.server.impl.application.WebApplicationImpl._handleRequest(WebApplicationImpl.java:1484)   
at com.sun.jersey.server.impl.application.WebApplicationImpl._handleRequest(WebApplicationImpl.java:1414)   
at com.sun.jersey.server.impl.application.WebApplicationImpl.handleRequest(WebApplicationImpl.java:1363)   
at com.sun.jersey.server.impl.application.WebApplicationImpl.handleRequest(WebApplicationImpl.java:1353)   
at com.sun.jersey.spi.container.servlet.WebComponent.service(WebComponent.java:414)   
at com.sun.jersey.spi.container.servlet.ServletContainer.service(ServletContainer.java:537)   
at com.sun.jersey.spi.container.servlet.ServletContainer.service(ServletContainer.java:708)   
at javax.servlet.http.HttpServlet.service(HttpServlet.java:728)   
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:305)

The actual reason of the problem was that in hyperlink in the expression that described the path to the main report was used “repo:” prefix: repo:/some_path/some_folder/report.

To fix this problem, “repo:” prefix should have been removed from the path, giving:  /some_path/some_folder/report.