I'm using JasperReports Server 5.6 and I have some reports deployed there.
The problem starts when I generate a PDF output for my reports. I can see the output file in the repository, but I'm unable to delete it.
I'm able to delete other types of resources, as an image or report, for example. But when I need to delete a generated PDF, the upper options bar doesn't offer me any options (including deleting). If I try to right-click the PDF, it doesn't open any pop-up menus (as it does for images, for example).
The image below shows what happens to the options bar:

Here goes some interesting things I've noticed:
- The type column in the repo tells me the PDF is a "Content Resource". If I manually upload another PDF from my local machine to the repo as a "Content Resource", the UI also doesn't let me delete the resource.
- I'm logged in as the administrator user. It's set with ROLE_USER and ROLE_ADMINISTRATOR roles (it's the default jasperadmin user).
- The directory which contains the PDF is set with permissions Read+Write+Delete for the ROLE_USER.
- Tried to log in as another user with ROLE_USER and I got the same result.
- The JasperReports Server's tomcat is running as root (it's a test environment).
- I went through the JasperReports Server's User's Guide and Administrator's Guide. Both said that I need to have the right permissions (and I do), and also I need to have no references to the resources to be deleted. In the case above, where I have an uploaded PDF as a "Content Resource", I don't have any references to it inside the repo, and I still can't delete it!
- If I delete the super directory that contains the PDF, it works fine.
So, do you guys have any ideas of what I can try to get rid of these PDF outputs?