I come from a Windows .NET background, but am trying to expand my expertise, and so have picked up a few Java projects. Currently, I’m trying to create a REST API, and so I decided to go through the walk through for Jersey here: http://jersey.java.net/nonav/documentation/latest/getting-started.html
I’ve gotten the Hello World project to work fine in Windows (using NetBeans and Maven), however when I try to do the same exact thing in Ubuntu (again using NetBeans and Maven) I get the following error:
Starting grizzly...
Aug 09, 2012 11:27:46 AM com.sun.jersey.api.core.PackagesResourceConfig init
INFO: Scanning for root resource and provider classes in the packages:
com.javarest.javarest2
Aug 09, 2012 11:27:47 AM com.sun.jersey.api.core.ScanningResourceConfig logClasses
INFO: Root resource classes found:
class com.javarest.javarest2.HelloWorldResource
Aug 09, 2012 11:27:47 AM com.sun.jersey.api.core.ScanningResourceConfig init
INFO: No provider classes found.
Exception in thread "main" java.lang.IllegalArgumentException: No container provider supports the type class org.glassfish.grizzly.http.server.HttpHandler
at com.sun.jersey.api.container.ContainerFactory.createContainer(ContainerFactory.java:196)
at com.sun.jersey.api.container.ContainerFactory.createContainer(ContainerFactory.java:134)
at com.sun.jersey.api.container.grizzly2.GrizzlyServerFactory.createHttpServer(GrizzlyServerFactory.java:242)
at Main.startServer(Main.java:25)
at Main.main(Main.java:29)
Java Result: 1
BUILD SUCCESSFUL (total time: 3 seconds)
I’ve looked at this posting: Grizzly and Jersey standalone jar, and modified my pom.xml to have the build section that he had, but am still getting the same error. The code that I have is pretty much taken right out of the example, but I’ll post it here:
HelloWorldResource.java:
/*
* To change this template, choose Tools | Templates
* and open the template in the editor.
*/
package com.javarest.javarest2;
import javax.ws.rs.*;
/**
*
* @author ryan
*/
// The Java class will be hosted at the URI path "/helloworld"
@Path("/helloworld")
public class HelloWorldResource {
// The Java method will process HTTP GET requests
@GET
// The Java method will produce content identified by the MIME Media
// type "text/plain"
@Produces("text/plain")
public String getClichedMessage() {
// Return some cliched textual content
return "Hello World";
}
}
Main.java
import com.sun.jersey.api.container.grizzly2.GrizzlyServerFactory;
import com.sun.jersey.api.core.DefaultResourceConfig;
import com.sun.jersey.api.core.PackagesResourceConfig;
import com.sun.jersey.api.core.ResourceConfig;
import org.glassfish.grizzly.http.server.HttpServer;
import javax.ws.rs.core.UriBuilder;
import java.io.IOException;
import java.net.URI;
import java.util.HashMap;
import java.util.Map;
import java.util.Map.Entry;
public class Main {
private static URI getBaseURI() {
return UriBuilder.fromUri("http://localhost/").port(9998).build();
}
public static final URI BASE_URI = getBaseURI();
protected static HttpServer startServer() throws IOException {
System.out.println("Starting grizzly...");
//ResourceConfig rc = new PackagesResourceConfig("com.sun.jersey.samples.helloworld.resources");
ResourceConfig rc = new PackagesResourceConfig("com.javarest.javarest2");
return GrizzlyServerFactory.createHttpServer(BASE_URI, rc);
}
public static void main(String[] args) throws IOException {
HttpServer httpServer = startServer();
System.out.println(String.format("Jersey app started with WADL available at "
+ "%sapplication.wadl\nTry out %shelloworld\nHit enter to stop it...",
BASE_URI, BASE_URI));
System.in.read();
httpServer.stop();
}
}
pom.xml:
<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>com.javarest</groupId>
<artifactId>JavaREST2</artifactId>
<version>1.0-SNAPSHOT</version>
<packaging>jar</packaging>
<name>JavaREST2</name>
<url>http://maven.apache.org</url>
<properties>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
</properties>
<dependencies>
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>3.8.1</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>com.sun.jersey</groupId>
<artifactId>jersey-server</artifactId>
<version>1.8</version>
</dependency>
<dependency>
<groupId>com.sun.jersey</groupId>
<artifactId>jersey-grizzly2</artifactId>
<version>1.13</version>
</dependency>
<dependency>
<groupId>com.sun.jersey</groupId>
<artifactId>jersey-atom</artifactId>
<version>1.8</version>
</dependency>
<dependency>
<groupId>com.sun.jersey</groupId>
<artifactId>jersey-json</artifactId>
<version>1.8</version>
</dependency>
<dependency>
<groupId>com.sun.jersey</groupId>
<artifactId>jersey-core</artifactId>
<version>1.8</version>
</dependency>
<dependency>
<groupId>com.sun.jersey</groupId>
<artifactId>jersey-client</artifactId>
<version>1.8</version>
</dependency>
<dependency>
<groupId>com.sun.jersey.contribs</groupId>
<artifactId>jersey-atom-abdera</artifactId>
<version>1.8</version>
</dependency>
<dependency>
<groupId>com.sun.jersey.contribs</groupId>
<artifactId>jersey-apache-client</artifactId>
<version>1.8</version>
</dependency>
<dependency>
<groupId>com.sun.jersey.contribs</groupId>
<artifactId>jersey-spring</artifactId>
<version>1.8</version>
</dependency>
<dependency>
<groupId>com.sun.jersey.contribs</groupId>
<artifactId>jersey-multipart</artifactId>
<version>1.8</version>
</dependency>
<dependency>
<groupId>com.sun.jersey.contribs</groupId>
<artifactId>jersey-guice</artifactId>
<version>1.8</version>
</dependency>
<dependency>
<groupId>com.sun.jersey.contribs</groupId>
<artifactId>jersey-simple-server</artifactId>
<version>1.8</version>
</dependency>
<dependency>
<groupId>com.sun.jersey.contribs.jersey-oauth</groupId>
<artifactId>oauth-client</artifactId>
<version>1.8</version>
</dependency>
<dependency>
<groupId>com.sun.jersey.contribs.jersey-oauth</groupId>
<artifactId>oauth-server</artifactId>
<version>1.8</version>
</dependency>
<dependency>
<groupId>com.sun.jersey.contribs.jersey-oauth</groupId>
<artifactId>oauth-signature</artifactId>
<version>1.8</version>
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-shade-plugin</artifactId>
<version>1.5</version>
<configuration>
<transformers>
<transformer implementation="org.apache.maven.plugins.shade.resource.ServicesResourceTransformer"/>
<transformer implementation="org.apache.maven.plugins.shade.resource.ManifestResourceTransformer">
<manifestEntries>
<Main-Class>com.javarest.javarest2.Main</Main-Class>
<Build-Number>1</Build-Number>
</manifestEntries>
</transformer>
</transformers>
</configuration>
<executions>
<execution>
<phase>package</phase>
<goals>
<goal>shade</goal>
</goals>
</execution>
</executions>
</plugin>
</plugins>
</build>
</project>
Ok, so I now own a mac and figured I would try the same procedure there. Not to my surprise, I ran into the same problem that I did in the linux environment. I had a co-worker try the same procedure on his machine, but it worked fine for him. The only thing that I noticed different when I did it was I got the following popup:
I had always just clicked ok. Since my co-worker never got the popup, I tried it again, this time clicking cancel. That seems to have done the trick.