Steps to reproduce:

Start Tomcat (7) as non-root user (e.g. 'tomcat'); start RHQ as non-root user.

This is for 4.5.1, maybe working on a later version?

diff --git a/modules/plugins/tomcat/src/main/java/org/jboss/on/plugins/tomcat/TomcatDiscoveryComponent.java b/modules/plugins/tomc
index 542f212..b348fca 100644
--- a/modules/plugins/tomcat/src/main/java/org/jboss/on/plugins/tomcat/TomcatDiscoveryComponent.java
+++ b/modules/plugins/tomcat/src/main/java/org/jboss/on/plugins/tomcat/TomcatDiscoveryComponent.java
@@ -226,12 +226,6 @@ private DiscoveredResourceDetails parseTomcatProcess(ResourceDiscoveryContext co
         ProcessInfo processInfo = autoDiscoveryResult.getProcessInfo();
         String[] commandLine = processInfo.getCommandLine();
 
-        if (null == processInfo.getExecutable()) {
-            log.debug("Ignoring Tomcat instance (agent may not be owner) with following command line: "
-                + Arrays.toString(commandLine));
-            return null;
-        }
-
         if (!isStandalone(commandLine) && !isWindows(context)) {
             log.debug("Ignoring embedded Tomcat instance (catalina.home not found) with following command line: "
                 + Arrays.toString(commandLine));