<p>
A list of user names.
</p>

@param usernames
A list of user names.
765196
public void setUsernames(java.util.Collection<String> usernames) {
        if (usernames == null) {
            this.usernames = null;
            return;
        }

        this.usernames = new java.util.ArrayList<String>(usernames);
    }
1280934
public void setConfigRuleNames(java.util.Collection<String> configRuleNames) {
        if (configRuleNames == null) {
            this.configRuleNames = null;
            return;
        }

        this.configRuleNames = new com.amazonaws.internal.SdkInternalList<String>(configRuleNames);
    }
509906
public void setKeys(java.util.Collection<String> keys) {
        if (keys == null) {
            this.keys = null;
            return;
        }

        this.keys = new java.util.ArrayList<String>(keys);
    }
333509
public void defineInputs(String... inputNames) {
        Preconditions.checkArgument(inputNames != null && inputNames.length > 0,
                        "Input names must not be null, and must have length > 0: got %s", inputNames);
        this.inputs = Arrays.asList(inputNames);
    }
1249188
public void setUserAttributes(java.util.Collection<Attribute> userAttributes) {
        if (userAttributes == null) {
            this.userAttributes = null;
            return;
        }

        this.userAttributes = new java.util.ArrayList<Attribute>(userAttributes);
    }
139489
public void setUsers(java.util.Collection<TraceUser> users) {
        if (users == null) {
            this.users = null;
            return;
        }

        this.users = new java.util.ArrayList<TraceUser>(users);
    }
1355315
public void setUserName(final String userName) {

        if (TraceComponent.isAnyTracingEnabled() && TRACE.isDebugEnabled()) {
            SibTr.debug(this, TRACE, "UserName", userName);
        }
        _userName = userName;

    }
1152118
public void setLaunchTemplateNames(java.util.Collection<String> launchTemplateNames) {
        if (launchTemplateNames == null) {
            this.launchTemplateNames = null;
            return;
        }

        this.launchTemplateNames = new com.amazonaws.internal.SdkInternalList<String>(launchTemplateNames);
    }
804456
public void setLifecycleHookNames(java.util.Collection<String> lifecycleHookNames) {
        if (lifecycleHookNames == null) {
            this.lifecycleHookNames = null;
            return;
        }

        this.lifecycleHookNames = new com.amazonaws.internal.SdkInternalList<String>(lifecycleHookNames);
    }
1220476
public void sessionUserNameSet(ISession session, String oldUserName, String newUserName) {
        // ArrayList sessionStateObservers = null;

        /*
         * Check to see if there is a non-empty list of sessionStateObservers.
         */
        if (_sessionStateObservers == null || _sessionStateObservers.size() < 1) {
            return;
        }

        // synchronized(_sessionStateObservers) {
        // sessionStateObservers = (ArrayList)_sessionStateObservers.clone();
        // }

        ISessionStateObserver sessionStateObserver = null;
        for (int i = 0; i < _sessionStateObservers.size(); i++) {
            sessionStateObserver = (ISessionStateObserver) _sessionStateObservers.get(i);
            sessionStateObserver.sessionUserNameSet(session, oldUserName, newUserName);
        }
    }
603727
public void setContextKeyNames(java.util.Collection<String> contextKeyNames) {
        if (contextKeyNames == null) {
            this.contextKeyNames = null;
            return;
        }

        this.contextKeyNames = new com.amazonaws.internal.SdkInternalList<String>(contextKeyNames);
    }
1125649
public void setUsers(java.util.Collection<UserData> users) {
        if (users == null) {
            this.users = null;
            return;
        }

        this.users = new java.util.ArrayList<UserData>(users);
    }
690946
public static void setFieldNames(@NonNull String... names) {
      Config.setProperty(CONFIG_PROPERTY + ".fields",
                         Joiner.on(',').join(names));
   }
796884
public void setInAppStreamNames(java.util.Collection<String> inAppStreamNames) {
        if (inAppStreamNames == null) {
            this.inAppStreamNames = null;
            return;
        }

        this.inAppStreamNames = new java.util.ArrayList<String>(inAppStreamNames);
    }
882382
public void setSubnetGroupNames(java.util.Collection<String> subnetGroupNames) {
        if (subnetGroupNames == null) {
            this.subnetGroupNames = null;
            return;
        }

        this.subnetGroupNames = new java.util.ArrayList<String>(subnetGroupNames);
    }
61972
public void setUsers(java.util.Collection<UserType> users) {
        if (users == null) {
            this.users = null;
            return;
        }

        this.users = new java.util.ArrayList<UserType>(users);
    }
222281
void setExistingNames(String... names) {
		this.existingNames = names;
		for (int i = 0; i < this.existingNames.length; ++i) {
			this.existingNames[i] = Strings.nullToEmpty(this.existingNames[i]);
		}
	}