code: public Object endContext() {
          if (TraceComponent.isAnyTracingEnabled() && tc.isDebugEnabled()) {
              Map<URL, ModuleMetaData> mmdi = getModuleMetaDataMap();
              ModuleMetaData mmd = ((mmdi != null) && !mmdi.isEmpty()) ? mmdi.values().iterator().next() : null;
              Tr.debug(tc, "end context " + (mmd == null ? null : mmd.getJ2EEName()));
          }
          return threadContext.endContext();
      }
docs: End the context for the current Map of URL (location where the module is loaded from), ModuleMetaData
  
  @return Object which was removed (pop) from the stack.