Here's my pom.xml and two source files: <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> <parent> <groupId> jax-rs </groupId> <artifactId> pdf.upload.topparent </artifactId> <version> 0.0.1-SNAPSHOT </version> </parent> <properties> <failOnMissingWebXml> false </failOnMissingWebXml> </properties> <artifactId> pdf.upload.server </artifactId> <packaging> war </packaging> <build> <finalName> pdfupload </finalName> </build> <dependencies> <!-- https://mvnrepository.com/artifact/javax/javaee-api --> <dependency> <groupId> javax </groupId> <artifactId> javaee-api </artifactId> <version> 7.0 </version> <scope> provided </scope> </dependency> </dependencies> </project> package pdf.upload.server; import java.io.ByteArrayInputStream; import java.io.ByteArrayOutputStream; import java.io.File; import java.io.FileOutputStream; import java.io.IOException; import java.io.InputStream; import java.io.OutputStream; import java.util.UUID; import javax.ws.rs.Consumes; import javax.ws.rs.FormParam; import javax.ws.rs.GET; import javax.ws.rs.POST; import javax.ws.rs.Path; import javax.ws.rs.Produces; import javax.ws.rs.core.MediaType; import javax.ws.rs.core.Response; @Path( "/upload" ) public class PdfUploadResource { private String uploadToDir = System .getProperty( "user.home" ) + File.separator + "tmp" + File.separator; @GET public String get() { return "PdfUploadResource is alive" ; } @POST @Consumes(MediaType.MULTIPART_FORM_DATA) @Produces(MediaType.TEXT_PLAIN) public Response submit(@FormParam( "pdfStream" ) InputStream pdfStream) { try { byte [] pdfByteArray = convertInputStreamToByteArrary(pdfStream); String uploadedFileLocation = uploadToDir + UUID.randomUUID().toString() + ".pdf" ; writeToFile( new ByteArrayInputStream(pdfByteArray), uploadedFileLocation); } catch (Exception ex) { return Response.status(500).entity(ex.getMessage()).build(); } return Response.status(200).build(); } ... } package pdf.upload.server; import javax.ws.rs.ApplicationPath; import javax.ws.rs.core.Application; @ApplicationPath( "/app" ) public class PdfUploadApplication extends Application { }