public Integer getMaxSessionDuration() {
        return this.maxSessionDuration;
    }
<p>
The maximum session duration (in seconds) that you want to set for the specified role. If you do not specify a
value for this setting, the default value of one hour is applied. This setting can have a value from 1 hour to 12
hours.
</p>
<p>
Anyone who assumes the role from the CLI or API can use the <code>DurationSeconds</code> API parameter or the
<code>duration-seconds</code> CLI parameter to request a longer session. The <code>MaxSessionDuration</code>
setting determines the maximum duration that can be requested using the <code>DurationSeconds</code> parameter.
If users don't specify a value for the <code>DurationSeconds</code> parameter, their security credentials are
valid for one hour by default. This applies when you use the <code>AssumeRole*</code> API operations or the
<code>assume-role*</code> CLI operations but does not apply when you use those operations to create a console
URL. For more information, see <a href="https://docs.aws.amazon.com/IAM/latest/UserGuide/id_roles_use.html">Using
IAM roles</a> in the <i>IAM User Guide</i>.
</p>

@return The maximum session duration (in seconds) that you want to set for the specified role. If you do not
        specify a value for this setting, the default value of one hour is applied. This setting can have a value
        from 1 hour to 12 hours.</p>
        <p>
        Anyone who assumes the role from the CLI or API can use the <code>DurationSeconds</code> API parameter or
        the <code>duration-seconds</code> CLI parameter to request a longer session. The
        <code>MaxSessionDuration</code> setting determines the maximum duration that can be requested using the
        <code>DurationSeconds</code> parameter. If users don't specify a value for the
        <code>DurationSeconds</code> parameter, their security credentials are valid for one hour by default.
        This applies when you use the <code>AssumeRole*</code> API operations or the <code>assume-role*</code>
        CLI operations but does not apply when you use those operations to create a console URL. For more
        information, see <a href="https://docs.aws.amazon.com/IAM/latest/UserGuide/id_roles_use.html">Using IAM
        roles</a> in the <i>IAM User Guide</i>.
aws-java-sdk-iam/src/main/java/com/amazonaws/services/identitymanagement/model/CreateRoleRequest.java