java.lang.ClassNotFoundException: org.glassfish.jersey.internal.RuntimeDelegateImpl in IdentityApi.getConnections()

[BigBadaboom]

SDK you're using (please complete the following information):
4.21.0

Describe the bug
While trying to authenticate a Custom Connection, using the sample code, I get the following exception:

Exception in thread "main" java.lang.RuntimeException: java.lang.ClassNotFoundException: org.glassfish.jersey.internal.RuntimeDelegateImpl
	at javax.ws.rs.ext.RuntimeDelegate.findDelegate(RuntimeDelegate.java:154)
	at javax.ws.rs.ext.RuntimeDelegate.getInstance(RuntimeDelegate.java:121)
	at javax.ws.rs.core.UriBuilder.newInstance(UriBuilder.java:96)
	at javax.ws.rs.core.UriBuilder.fromUri(UriBuilder.java:120)
	at com.xero.api.client.IdentityApi.getConnectionsForHttpResponse(IdentityApi.java:245)
	at com.xero.api.client.IdentityApi.getConnections(IdentityApi.java:207)
	at nz.co.xxx.yyy.XeroUtils.authenticateWithXero(XeroUtils.java:60)
	at nz.co.xxx.yyy.BalanceFetcher.start(BalanceFetcher.java:72)
	at nz.co.xxx.yyy.Main.main(Main.java:39)
Caused by: java.lang.ClassNotFoundException: org.glassfish.jersey.internal.RuntimeDelegateImpl
	at java.base/jdk.internal.loader.BuiltinClassLoader.loadClass(BuiltinClassLoader.java:641)
	at java.base/jdk.internal.loader.ClassLoaders$AppClassLoader.loadClass(ClassLoaders.java:188)
	at java.base/java.lang.ClassLoader.loadClass(ClassLoader.java:521)
	at java.base/java.lang.Class.forName0(Native Method)
	at java.base/java.lang.Class.forName(Class.java:390)
	at java.base/java.lang.Class.forName(Class.java:381)
	at javax.ws.rs.ext.FactoryFinder.newInstance(FactoryFinder.java:111)
	at javax.ws.rs.ext.FactoryFinder.find(FactoryFinder.java:209)
	at javax.ws.rs.ext.RuntimeDelegate.findDelegate(RuntimeDelegate.java:136)
	... 8 more

To Reproduce
Code I used:

   private static final HttpTransport HTTP_TRANSPORT = new NetHttpTransport();
    private static final JsonFactory JSON_FACTORY = GsonFactory.getDefaultInstance();

    private static final String TOKEN_REQUEST_URL = "https://identity.xero.com/connect/token";

    public static final TokenStorage  XERO_ERROR = null;


    public static TokenStorage  authenticateWithXero(XeroCredentials credentials, boolean verbose)
    {
        if (verbose)
            System.out.println("Authenticating with Xero... ");

        // The scopes that we will need
        ArrayList<String> scopeList = new ArrayList<String>();
        scopeList.add("accounting.transactions.read");

        new NetHttpTransport();

        try {
            ClientCredentialsTokenRequest  tokReq = new ClientCredentialsTokenRequest(HTTP_TRANSPORT, JSON_FACTORY, new GenericUrl(TOKEN_REQUEST_URL));
            BasicAuthentication            basicAuth = new BasicAuthentication(credentials.getClientId(), credentials.getClientSecret());

            TokenResponse tokenResponse = tokReq.setScopes(scopeList)
                                                .setClientAuthentication(basicAuth)
                                                .execute();

            if (Build.isDebug)
                System.out.println("   Access token: " + tokenResponse.getAccessToken());
            ApiClient defaultIdentityClient = new ApiClient("https://api.xero.com", null, null, null, null);
            IdentityApi idApi = new IdentityApi(defaultIdentityClient);
            List<Connection> connection = idApi.getConnections(tokenResponse.getAccessToken(),null);

            // ... snip...

        }
        catch (TokenResponseException e) {
            if (e.getDetails() != null) {
                System.err.println("Error: " + e.getDetails().getError());
                if (e.getDetails().getErrorDescription() != null) {
                    System.err.println(e.getDetails().getErrorDescription());
                }
                if (e.getDetails().getErrorUri() != null) {
                    System.err.println(e.getDetails().getErrorUri());
                }
            } else {
                System.err.println(e.getMessage());
            }
        } catch (IOException e) {
            System.err.println("Error: " + e.getMessage());
        }

        return XERO_ERROR;
    }

After scratching my head for a while, I found a workaround by including the following dependency:

        <dependency>
            <groupId>org.glassfish.jersey.core</groupId>
            <artifactId>jersey-server</artifactId>
            <version>2.27</version>
        </dependency>

My POM file before the workaround was as follows (client details removed for privacy):

<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0"
         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
    <modelVersion>4.0.0</modelVersion>

    <groupId>nz.co.xxx</groupId>
    <artifactId>Yyy</artifactId>
    <version>1.0-SNAPSHOT</version>

    <build>
        <defaultGoal>install</defaultGoal>

        <plugins>
            <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-shade-plugin</artifactId>
                <version>3.3.0</version>
                <executions>
                    <execution>
                        <phase>package</phase>
                        <goals>
                            <goal>shade</goal>
                        </goals>
                        <configuration>
                            <minimizeJar>true</minimizeJar>
                            <transformers>
                                <transformer implementation="org.apache.maven.plugins.shade.resource.ManifestResourceTransformer">
                                    <mainClass>nz.co.xxx.yyy.Main</mainClass>
                                </transformer>
                            </transformers>
                            <filters>
                                <filter>
                                    <artifact>com.oracle.database.jdbc:ojdbc8</artifact>
                                    <includes>
                                        <include>**</include>
                                    </includes>
                                </filter>
                            </filters>
                        </configuration>
                    </execution>
                </executions>
            </plugin>
            <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-compiler-plugin</artifactId>
                <version>3.10.1</version>
                <configuration>
                    <source>1.8</source>
                    <target>1.8</target>
                </configuration>
            </plugin>
        </plugins>
    </build>

    <dependencies>

        <!-- https://mvnrepository.com/artifact/org.slf4j/slf4j-simple -->
        <dependency>
            <groupId>org.slf4j</groupId>
            <artifactId>slf4j-simple</artifactId>
            <version>2.0.3</version>
        </dependency>

        <!-- https://mvnrepository.com/artifact/commons-cli/commons-cli -->
        <dependency>
            <groupId>commons-cli</groupId>
            <artifactId>commons-cli</artifactId>
            <version>1.5.0</version>
        </dependency>

        <!-- https://mvnrepository.com/artifact/com.google.auth/google-auth-library-oauth2-http -->
        <dependency>
            <groupId>com.google.auth</groupId>
            <artifactId>google-auth-library-oauth2-http</artifactId>
            <version>1.11.0</version>
        </dependency>

        <!-- https://mvnrepository.com/artifact/com.github.xeroapi/xero-java -->
        <dependency>
            <groupId>com.github.xeroapi</groupId>
            <artifactId>xero-java</artifactId>
            <version>4.21.0</version>
        </dependency>

        <!-- https://mvnrepository.com/artifact/com.oracle.database.jdbc/ojdbc8 -->
        <dependency>
            <groupId>com.oracle.database.jdbc</groupId>
            <artifactId>ojdbc8</artifactId>
            <version>21.7.0.0</version>
        </dependency>

    </dependencies>

    <properties>
        <maven.compiler.source>1.8</maven.compiler.source>
        <maven.compiler.target>1.8</maven.compiler.target>
        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
    </properties>

</project>```

[ghost]

Ok

[ghost]

O