if (trace.getData() instanceof CollectStepData) {
                collectStepTrace = (CollectStepData) trace.getData();
                break;
            }
            trace = trace.getParent();
        }
        return collectStepTrace;
    }

    /**
     * The event "artifact resolved" if fired WHENEVER an artifact is resolved, BUT it happens also when an artifact

		if !strings.HasPrefix(file, "<autogenerated>") &&
			!strings.HasPrefix(funcName, "runtime.") {
			// Form and append a line of stack trace into a
			// collection, 'trace', to build full stack trace
			trace = append(trace, fmt.Sprintf("%v:%v:%v()", file, lineNumber, funcName))

			// Ignore trace logs beyond the following conditions
			for _, name := range matchingFuncNames {

            RepositorySystemSession session,
            RequestTrace trace,
            Metadata metadata,
            ArtifactRepository repository,
            Exception exception) {
        RepositoryEvent.Builder event = new RepositoryEvent.Builder(session, EventType.METADATA_INVALID);
        event.setTrace(trace);
        event.setMetadata(metadata);
        event.setException(exception);

        for ( Entry<String, Map<String, CacheEntry<DfsReferralDataInternal>>> entry : domains.entrySet() ) {
            log.trace("Domain " + entry.getKey());
            for ( Entry<String, CacheEntry<DfsReferralDataInternal>> entry2 : entry.getValue().entrySet() ) {
                log.trace("  Root " + entry2.getKey());
                if ( entry2.getValue().map != null ) {

        return result;
    }

    private void missingDescriptor(
            RepositorySystemSession session, RequestTrace trace, Artifact artifact, Exception exception) {
        RepositoryEvent.Builder event = new RepositoryEvent.Builder(session, EventType.ARTIFACT_DESCRIPTOR_MISSING);
        event.setTrace(trace);
        event.setArtifact(artifact);
        event.setException(exception);

        this.macSigningKey = macSigningKey;
        this.signSequence = initialSequence;
        this.bypass = bypass;

        if ( log.isTraceEnabled() ) {
            log.trace("macSigningKey:");
            log.trace(Hexdump.toHexString(macSigningKey, 0, macSigningKey.length));
        }
    }


    /**
     * This constructor used to instance a SigningDigest object for

            RepositorySystemSession session,
            RequestTrace trace,
            String context,
            ArtifactResolver resolver,
            VersionRangeResolver versionRangeResolver,
            RemoteRepositoryManager remoteRepositoryManager,
            List<RemoteRepository> repositories) {
        this.session = session;
        this.trace = trace;
        this.context = context;
        this.resolver = resolver;

            }
        } catch (Exception e) {
            invalidMetadata(session, trace, metadata, repository, e);
            result.addException(e);
        }

        return (versioning != null) ? versioning : new Versioning();
    }

    private void invalidMetadata(
            RepositorySystemSession session,
            RequestTrace trace,
            Metadata metadata,
            ArtifactRepository repository,

			"Possible values for <level>: none, error, warn, info, debug")
	logCmd.PersistentFlags().StringVar(&stackTraceLevel, "stack-trace-level", stackTraceLevel,
		"Comma-separated list of stack trace level for scopes in the format of <scope>:<stack-trace-level>[,<scope>:<stack-trace-level>,...]. "+
			"Possible values for <stack-trace-level>: none, error, warn, info, debug")
	logCmd.PersistentFlags().StringVarP(&outputFormat, "output", "o",

                        log.trace(response.toString());
                        log.trace(Hexdump.toHexString(this.rcv_buf, 0, this.in.getLength()));
                    }

                    response.notify();
                }
            }
        }
        catch ( SocketTimeoutException ste ) {
            log.trace("Socket timeout", ste);
        }
        catch ( Exception ex ) {