Description of problem:
When I click Download button in Artifact repository I get following exception:

java.lang.IllegalStateException: ServletConfig has not been initialized
javax.servlet.GenericServlet.getServletContext(GenericServlet.java:197)
org.guvnor.m2repo.backend.server.M2Servlet.doGet(M2Servlet.java:50)
javax.servlet.http.HttpServlet.service(HttpServlet.java:734)
javax.servlet.http.HttpServlet.service(HttpServlet.java:847)
org.jbpm.designer.web.filter.impl.PluggableFilter.doFilter(PluggableFilter.java:70)
org.uberfire.ext.security.server.BasicAuthSecurityFilter.doFilter(BasicAuthSecurityFilter.java:60)
org.uberfire.ext.security.server.SecureHeadersFilter.doFilter(SecureHeadersFilter.java:53)
org.uberfire.ext.security.server.SecurityIntegrationFilter.doFilter(SecurityIntegrationFilter.java:64)

Version-Release number of selected component (if applicable):
BPM Suite 6.1.0.ER4

How reproducible:
-

Steps to Reproduce:
1. Log in to Business Central, build any project.
2. Open Asset repository perspective, click Download on any artifact row.

Actual results:
Browser opens new window showing HTTP 500 report with uncaught exception. Download is prevented.

Expected results:
The exception should not occur, JAR file download should begin.

Additional info: