Fix event handling race condition ONOS-7673

Events could be processed after the component was deactivated
and the executors were shut down.

Change-Id: I53f065e59638293b035278ed1a7736e4d7a817ca
diff --git a/tools/build/conf/src/main/resources/onos/suppressions.xml b/tools/build/conf/src/main/resources/onos/suppressions.xml
index dce87bc..4f4f0d5 100644
--- a/tools/build/conf/src/main/resources/onos/suppressions.xml
+++ b/tools/build/conf/src/main/resources/onos/suppressions.xml
@@ -52,6 +52,9 @@
     <suppress checks="Javadoc.*"
               files=".*/demo/.*.java"/>
 
+    <suppress checks="FileLength"
+              files=".*/SegmentRoutingManager.java"/>
+
     <!-- Suppressions for yangutils generated code -->
     <suppress files="org.onosproject.yang.gen.v1.*" checks="Javadoc.*" />