Servidor não acha ACL Google Storage

Programação Java
#1

Estou criando uma web aplicação e gostaria de armazenar arquivos de imagem dela no Google Cloud Storage. Essa aplicação poderá subir ou baixar as imagens conforme a necessidade.
Segui os passos dos tutoriais do Google mas encontrei problemas que não consegui achar solução. Alguém poderia me ajudar?

Já baixei o JSON e o adicionei nas variáveis de ambiente do computador

método que fará o upload das Imagens:
@SuppressWarnings(“deprecation”)
public String salvarImagem(Part file) {

	Storage storage = StorageOptions.getDefaultInstance().getService();
	
	try {
		DateTimeFormatter dtf = DateTimeFormat.forPattern("-YYYY-MM-dd-HHmmssSSS");
		DateTime dt = DateTime.now(DateTimeZone.UTC);
		String dtString = dt.toString(dtf);
		final String fileName = file.getSubmittedFileName() + dtString;

		List<Acl> acls = new ArrayList<>();
		Acl acl = storage.getAcl("webeer-cervejas", User.ofAllAuthenticatedUsers());
	    acls.add(Acl.of(Acl.User.ofAllUsers(), Acl.Role.OWNER));

		
		BlobInfo blobInfo = storage.create(
				BlobInfo.newBuilder("webeer-cervejas", fileName)
				//.setAcl(acls)
				.build(),
				file.getInputStream());
		
		return blobInfo.getMediaLink();

	} catch (IllegalStateException | IOException e) {
		throw new RuntimeException(e);
	}
}

Método do Servelet que receberá a imagem:

	protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
		// TODO Auto-generated method stub
	    Part filePart = request.getPart("upload");
		String nameFile = filePart.getSubmittedFileName();
	   InputStream filecontent = filePart.getInputStream();
	   
	    String fileName = Paths.get(filePart.getSubmittedFileName()).getFileName().toString(); // MSIE fix.
	    InputStream fileContent = filePart.getInputStream();
	    
	    
	    FileSaver fs = new FileSaver();
	    fs.salvarImagem(filePart);
	    
		System.out.println("Salvo com sucesso.");
	    
	}

}

Meu POM:

	<dependency>
		<groupId>com.google.cloud</groupId>
		<artifactId>google-cloud-storage</artifactId>
		<version>1.14.0</version>
	</dependency>

	<dependency>
		<groupId>com.google.apis</groupId>
		<artifactId>google-api-services-storage</artifactId>
		<version>v1-rev139-1.25.0</version>
	</dependency>

	<!-- https://mvnrepository.com/artifact/com.google.oauth-client/google-oauth-client -->
	<dependency>
		<groupId>com.google.oauth-client</groupId>
		<artifactId>google-oauth-client</artifactId>
		<version>1.26.0</version>
	</dependency>

O erro que aparece ao tentar executar o método:

Type Exception Report

Message Servlet execution threw an exception

Description The server encountered an unexpected condition that prevented it from fulfilling the request.

Exception

javax.servlet.ServletException: Servlet execution threw an exception
	org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:53)

Root Cause

java.lang.NoClassDefFoundError: com/google/auth/Credentials
	ubhiya.Controller.ImageSaver.doPost(ImageSaver.java:72)
	javax.servlet.http.HttpServlet.service(HttpServlet.java:660)
	javax.servlet.http.HttpServlet.service(HttpServlet.java:741)
	org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:53)

Root Cause

java.lang.ClassNotFoundException: com.google.auth.Credentials
	org.apache.catalina.loader.WebappClassLoaderBase.loadClass(WebappClassLoaderBase.java:1309)
	org.apache.catalina.loader.WebappClassLoaderBase.loadClass(WebappClassLoaderBase.java:1138)
	ubhiya.Controller.ImageSaver.doPost(ImageSaver.java:72)
	javax.servlet.http.HttpServlet.service(HttpServlet.java:660)
	javax.servlet.http.HttpServlet.service(HttpServlet.java:741)
	org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:53)

Note The full stack trace of the root cause is available in the server logs.

Obrigado!