How to check if resource exists in TIBCO JasperReports® Server repository from a report

Problem:

In the report for whatever reason, you need to check whether the resource exists in the TIBCO JasperReports^® Server repository or not.

Solution:

There is an undocumented method to do that. It returns a boolean value:

com.jaspersoft.jasperserver.api.engine.jasperreports.util.RepositoryUtil.getThreadRepositoryContext().getRepository().resourceExists(null, "/path/to/resource")