# AssumeRoleWithCustomToken [![Slack](https://slack.min.io/slack?type=svg)](https://slack.min.io)

## Introduction

To integrate with custom authentication methods using the [Identity Management Plugin](../iam/identity-management-plugin.md)), MinIO provides an STS API extension called `AssumeRoleWithCustomToken`.

After configuring the plugin, use the generated Role ARN with `AssumeRoleWithCustomToken` to get temporary credentials to access object storage.

        }

        /**
         * The type of the policy handle.
         */
        public int type;
        /**
         * The UUID associated with this policy handle.
         */
        public uuid_t uuid;

        @Override
        public void encode(NdrBuffer _dst) throws NdrException {
            _dst.align(4);
            _dst.enc_ndr_long(type);
            _dst.enc_ndr_long(uuid.time_low);

			default:
				values = append(values, fmt.Sprintf("UnknownOID=%s", name.Type.String()))
			}
		} else if oid.Equal(oidEmailAddress) {
			values = append(values, fmt.Sprintf("emailAddress=%s", name.Value))
		} else {
			values = append(values, fmt.Sprintf("UnknownOID=%s", name.Type.String()))
		}
	}
	if len(values) > 0 {
		buf.WriteString(values[0])
		for i := 1; i < len(values); i++ {

While there are competing ways to represent absence (`Optional`, "Null Object" pattern, method overloads),
it is unlikely that we'll be able to remove `null` entirely.

After migrating to Java 8, we can use pluggable type checkers to ensure that our annotations are consistent, 
and there are no missing null checks.

## Decision

Use "NullAway" in JSpecify mode to check for null-related errors in Java code.

   *   <li>{@code proxy.toString()} delegates to {@link AbstractInvocationHandler#toString}
   *   <li>{@code proxy.equals(argument)} returns true if:
   *       <ul>
   *         <li>{@code proxy} and {@code argument} are of the same type
   *         <li>and {@link AbstractInvocationHandler#equals} returns true for the {@link
   *             InvocationHandler} of {@code argument}
   *       </ul>

   * Entry instances that are either live "read-through" views to the Multiset, or immutable
   * snapshots. Note that this type is unrelated to the similarly-named type {@code Map.Entry}.
   *
   * @since 2.0
   */
  interface Entry<E extends @Nullable Object> {

    /**

        <dependencies>
            <dependency>
                <groupId>test</groupId>
                <artifactId>import</artifactId>
                <version>0.1-SNAPSHOT</version>
                <type>pom</type>
                <scope>import</scope>
            </dependency>
            <dependency>
                <groupId>test</groupId>
                <artifactId>mydep</artifactId>
                <version>0.2</version>

        String url, type;
        int n;

        try (SmbFileInputStream in = new SmbFileInputStream(file); ServletOutputStream out = resp.getOutputStream()) {
            url = file.getPath();

            resp.setContentType("text/plain");

            n = url.lastIndexOf('.');
            if (n > 0 && (type = url.substring(n + 1)) != null && type.length() > 1 && type.length() < 6) {

		if err != nil {
			err = msgp.WrapError(err)
			return
		}
		switch msgp.UnsafeString(field) {
		case "Type":
			{
				var zb0002 string
				zb0002, err = dc.ReadString()
				if err != nil {
					err = msgp.WrapError(err, "Type")
					return
				}
				z.Type = BatchKeyRotationType(zb0002)
			}
		case "Key":
			z.Key, err = dc.ReadString()
			if err != nil {

         */
        Extension,

        /**
         * A class realm for a plugin.
         */
        Plugin,
    }

    /**
     * Gets the type of the class realm.
     *
     * @return The type of the class realm, never {@code null}.
     */
    RealmType getType();

    /**
     * Gets the parent class realm (if any).
     *