try {
Thread.currentThread().setContextClassLoader(context.getClassLoader());
// registers all deployed items.
for (EngineRef engine : _getEngineRefs()) {
if (logger.isLoggable(Level.FINE)) {
logger.fine("starting " + engine.getContainerInfo().getSniffer().getModuleType());
}
DeploymentTracing tracing = context.getModuleMetaData(DeploymentTracing.class);
if (tracing!=null) {
tracing.addContainerMark(DeploymentTracing.ContainerMark.START,
engine.getContainerInfo().getSniffer().getModuleType());