Develop Reference

How to address java.lang.ExceptionInInitializerError and java.lang.NoClassDefFoundError when running cucumber script through Selenium Java

I have a cucumber and selenium test which has always worked fine and suddenly stops running with the below error.
1 Scenarios (1 failed)
14 Steps (14 skipped)
0m0.004s
java.lang.ExceptionInInitializerError
at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62)
at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
at java.lang.reflect.Constructor.newInstance(Constructor.java:423)
at org.picocontainer.injectors.AbstractInjector.newInstance(AbstractInjector.java:145)
at org.picocontainer.injectors.ConstructorInjector$1.run(ConstructorInjector.java:342)
at org.picocontainer.injectors.AbstractInjector$ThreadLocalCyclicDependencyGuard.observe(AbstractInjector.java:270)
at org.picocontainer.injectors.ConstructorInjector.getComponentInstance(ConstructorInjector.java:364)
at org.picocontainer.injectors.AbstractInjectionFactory$LifecycleAdapter.getComponentInstance(AbstractInjectionFactory.java:56)
at org.picocontainer.behaviors.AbstractBehavior.getComponentInstance(AbstractBehavior.java:64)
at org.picocontainer.behaviors.Stored.getComponentInstance(Stored.java:91)
at org.picocontainer.DefaultPicoContainer.getInstance(DefaultPicoContainer.java:699)
at org.picocontainer.DefaultPicoContainer.getComponent(DefaultPicoContainer.java:647)
at org.picocontainer.DefaultPicoContainer.getComponent(DefaultPicoContainer.java:678)
at cucumber.runtime.java.picocontainer.PicoFactory.getInstance(PicoFactory.java:40)
at cucumber.runtime.java.JavaHookDefinition.execute(JavaHookDefinition.java:60)
at cucumber.runtime.Runtime.runHookIfTagsMatch(Runtime.java:224)
at cucumber.runtime.Runtime.runHooks(Runtime.java:212)
at cucumber.runtime.Runtime.runBeforeHooks(Runtime.java:202)
at cucumber.runtime.model.CucumberScenario.run(CucumberScenario.java:40)
at cucumber.runtime.model.CucumberFeature.run(CucumberFeature.java:165)
at cucumber.runtime.Runtime.run(Runtime.java:122)
at cucumber.api.cli.Main.run(Main.java:36)
at cucumber.api.cli.Main.main(Main.java:18)
Caused by: java.lang.NullPointerException
at com.optal.browsers.WebDriverFactory.createAndSetUpThreadedBrowser(WebDriverFactory.java:56)
at com.optal.browsers.WebDriverFactory.create(WebDriverFactory.java:37)
at com.optal.hooks.ScenarioHooks.<clinit>(ScenarioHooks.java:19)
... 24 more
java.lang.NoClassDefFoundError: Could not initialize class com.optal.hooks.ScenarioHooks
at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62)
at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
at java.lang.reflect.Constructor.newInstance(Constructor.java:423)
at org.picocontainer.injectors.AbstractInjector.newInstance(AbstractInjector.java:145)
at org.picocontainer.injectors.ConstructorInjector$1.run(ConstructorInjector.java:342)
at org.picocontainer.injectors.AbstractInjector$ThreadLocalCyclicDependencyGuard.observe(AbstractInjector.java:270)
at org.picocontainer.injectors.ConstructorInjector.getComponentInstance(ConstructorInjector.java:364)
at org.picocontainer.injectors.AbstractInjectionFactory$LifecycleAdapter.getComponentInstance(AbstractInjectionFactory.java:56)
at org.picocontainer.behaviors.AbstractBehavior.getComponentInstance(AbstractBehavior.java:64)
at org.picocontainer.behaviors.Stored.getComponentInstance(Stored.java:91)
at org.picocontainer.DefaultPicoContainer.getInstance(DefaultPicoContainer.java:699)
at org.picocontainer.DefaultPicoContainer.getComponent(DefaultPicoContainer.java:647)
at org.picocontainer.DefaultPicoContainer.getComponent(DefaultPicoContainer.java:678)
at cucumber.runtime.java.picocontainer.PicoFactory.getInstance(PicoFactory.java:40)
at cucumber.runtime.java.JavaHookDefinition.execute(JavaHookDefinition.java:60)
at cucumber.runtime.Runtime.runHookIfTagsMatch(Runtime.java:224)
at cucumber.runtime.Runtime.runHooks(Runtime.java:212)
at cucumber.runtime.Runtime.runAfterHooks(Runtime.java:206)
at cucumber.runtime.model.CucumberScenario.run(CucumberScenario.java:46)
at cucumber.runtime.model.CucumberFeature.run(CucumberFeature.java:165)
at cucumber.runtime.Runtime.run(Runtime.java:122)
at cucumber.api.cli.Main.run(Main.java:36)
at cucumber.api.cli.Main.main(Main.java:18)
Calling System.exit() ..................
Process finished with exit code 1

ExceptionInInitializerError
An ExceptionInInitializerError is thrown to indicate that an exception occurred during evaluation of a static initializer or the initializer for a static variable.
The ExceptionInInitializerError is thrown when the JVM attempts to load a new class. During the class loading procedure, all static variables and static initializers are being evaluated. A static initializer is a block enclosed within curly braces without having any name and return type, except having the keyword static.
An example of a static initializer:
import java.util.UUID;
class Example {
private static String ID = null;
static {
ID = UUID.randomUUID().toString();
}
}
The static initializer is evaluated only once during the class loading procedure. Thus, a thrown exception in the evaluation of a static variable or initializer is wrapped into an ExceptionInInitializerError, in order for the JVM to indicate that the class could not be initialized and loaded.
An example that throws ExceptionInInitializerError error is as follows:
public class Example {
private static String message = null;
private static String subMessage = null;
public Example(String message) {
Example.message = message;
}
static {
/* Store the first 10 characters of the input message. */
subMessage = message.substring(0, 10);
}
public String getSubMessage() {
return subMessage;
}
public static void main(String[] args) {
Example exampleClass = new Example("Test");
System.out.println(exampleClass.getSubMessage());
}
}
Executing the above code snippet you will see the following error:
Exception in thread "main" java.lang.ExceptionInInitializerError
Caused by: java.lang.NullPointerException
at main.java.Example.<clinit>(Example.java:13)
You can use either of the following methods to extract more information about the underlying actual exception:
getException(): Returns the exception that occurred during a static initialization that caused this error to be created.
getCause(): Returns the exception that caused this error to be thrown.
Dealing with ExceptionInInitializerError
The ExceptionInInitializerError is used as a wrapper to indicate that an exception arises in the static initializer block or the evaluation of a static variable’s value. Thus, we have to ensure that the original exception is fixed, in order for the JVM to be able to load our class successfully.
Outro
You can throw unchecked / runtime exceptions from the block of a static initializer. However, you cannot allow a checked exception to propagate out of a static block, because is not possible to handle these exceptions in your source.

if you are using Mac M1 chip and room lib , try this : In project-level build.gradle, add the following configuration in allprojects :
allprojects {
repositories {
// ...
}
// ADD THE FOLLOWING
configurations.all {
resolutionStrategy {
force 'org.xerial:sqlite-jdbc:3.34.0'
}
}
}
Ref : https://stackoverflow.com/a/70232822/7048025

Bug? Logger specified in config can't be loaded [akka.testkit.TestEventListener]?

As per docs, under (Expecting Log Messages),
Be sure to exchange the default logger with the TestEventListener in
your application.conf to enable this function: akka.loggers =
[akka.testkit.TestEventListener]
So, this works well when I put it in application.conf. My test work well
#Test
public void testActorForNonExistentLocation() throws Exception {
final Map<String, String> configValues = Collections.singletonMap("tenant.assetsLocation",
"/non/existentLocation");
final Config config = mergeConfig(configValues);
System.out.println(config.getList("akka.loggers"));
new JavaTestKit(system) {{
assertEquals("system", system.name());
final Props props = TenantMonitorActor.props(config);
final ActorRef supervisor = system.actorOf(props, "supervisor");
new EventFilter<Void>(DiskException.class) {
#Override
protected Void run() {
supervisor.tell(new TenantMonitorMessage(), supervisor);
return null;
}
}.from("akka://system/user/supervisor/diskMonitor").occurrences(1).exec();
}};
}
Now when I try to run my application
public class Main {
private Main() {
}
public static void main(final String[] args) {
final Config config = ConfigFactory.load();
final ActorSystem actorSystem = ActorSystem.create(config.getString("ec.name"));
setUpMonitoring(actorSystem, config);
}
private static void setUpMonitoring(final ActorSystem system, final Config config) {
final ActorRef tenantMonitorRef = system.actorOf(TenantMonitorActor.props(config),
"tenantMonitor");
tenantMonitorRef.tell(new TenantMonitorMessage(), tenantMonitorRef);
}
}
I see errors as
error while starting up loggers
akka.ConfigurationException: Logger specified in config can't be loaded [akka.testkit.TestEventListener] due to [java.lang.ClassNotFoundException: akka.testkit.TestEventListener]
at akka.event.LoggingBus$$anonfun$4$$anonfun$apply$1.applyOrElse(Logging.scala:116)
at akka.event.LoggingBus$$anonfun$4$$anonfun$apply$1.applyOrElse(Logging.scala:115)
at scala.runtime.AbstractPartialFunction.apply(AbstractPartialFunction.scala:36)
at scala.util.Failure$$anonfun$recover$1.apply(Try.scala:215)
at scala.util.Try$.apply(Try.scala:191)
at scala.util.Failure.recover(Try.scala:215)
at akka.event.LoggingBus$$anonfun$4.apply(Logging.scala:115)
at akka.event.LoggingBus$$anonfun$4.apply(Logging.scala:110)
at scala.collection.TraversableLike$WithFilter$$anonfun$map$2.apply(TraversableLike.scala:728)
at scala.collection.Iterator$class.foreach(Iterator.scala:750)
at scala.collection.AbstractIterator.foreach(Iterator.scala:1202)
at scala.collection.IterableLike$class.foreach(IterableLike.scala:72)
at scala.collection.AbstractIterable.foreach(Iterable.scala:54)
at scala.collection.TraversableLike$WithFilter.map(TraversableLike.scala:727)
at akka.event.LoggingBus$class.startDefaultLoggers(Logging.scala:110)
at akka.event.EventStream.startDefaultLoggers(EventStream.scala:26)
at akka.actor.LocalActorRefProvider.init(ActorRefProvider.scala:622)
at akka.actor.ActorSystemImpl.liftedTree2$1(ActorSystem.scala:619)
at akka.actor.ActorSystemImpl._start$lzycompute(ActorSystem.scala:616)
at akka.actor.ActorSystemImpl._start(ActorSystem.scala:616)
at akka.actor.ActorSystemImpl.start(ActorSystem.scala:633)
at akka.actor.ActorSystem$.apply(ActorSystem.scala:142)
at akka.actor.ActorSystem$.apply(ActorSystem.scala:109)
at akka.actor.ActorSystem$.create(ActorSystem.scala:57)
at akka.actor.ActorSystem.create(ActorSystem.scala)
at Main.main(Main.java:16)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:497)
at com.intellij.rt.execution.application.AppMain.main(AppMain.java:140)
Caused by: java.lang.ClassNotFoundException: akka.testkit.TestEventListener
at java.net.URLClassLoader.findClass(URLClassLoader.java:381)
at java.lang.ClassLoader.loadClass(ClassLoader.java:424)
at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:331)
at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
at java.lang.Class.forName0(Native Method)
at java.lang.Class.forName(Class.java:348)
at akka.actor.ReflectiveDynamicAccess$$anonfun$getClassFor$1.apply(DynamicAccess.scala:67)
at akka.actor.ReflectiveDynamicAccess$$anonfun$getClassFor$1.apply(DynamicAccess.scala:66)
at scala.util.Try$.apply(Try.scala:191)
at akka.actor.ReflectiveDynamicAccess.getClassFor(DynamicAccess.scala:66)
at akka.event.LoggingBus$$anonfun$4.apply(Logging.scala:113)
... 24 more
Exception in thread "main" akka.ConfigurationException: Could not start logger due to [akka.ConfigurationException: Logger specified in config can't be loaded [akka.testkit.TestEventListener] due to [java.lang.ClassNotFoundException: akka.testkit.TestEventListener]]
at akka.event.LoggingBus$class.startDefaultLoggers(Logging.scala:144)
at akka.event.EventStream.startDefaultLoggers(EventStream.scala:26)
at akka.actor.LocalActorRefProvider.init(ActorRefProvider.scala:622)
at akka.actor.ActorSystemImpl.liftedTree2$1(ActorSystem.scala:619)
at akka.actor.ActorSystemImpl._start$lzycompute(ActorSystem.scala:616)
at akka.actor.ActorSystemImpl._start(ActorSystem.scala:616)
at akka.actor.ActorSystemImpl.start(ActorSystem.scala:633)
at akka.actor.ActorSystem$.apply(ActorSystem.scala:142)
at akka.actor.ActorSystem$.apply(ActorSystem.scala:109)
at akka.actor.ActorSystem$.create(ActorSystem.scala:57)
at akka.actor.ActorSystem.create(ActorSystem.scala)
at Main.main(Main.java:16)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:497)
at com.intellij.rt.execution.application.AppMain.main(AppMain.java:140)
My application.conf looks like
akka {
event-handlers = ["akka.event.slf4j.Slf4jEventHandler"]
loglevel = "INFO"
loggers = [akka.testkit.TestEventListener]
}
ec {
name = "Connector"
}
tenant {
assetsLocation: /Users
}
monitoring {
tenant.disk.schedule.seconds: 2
tenant.disk.threshold.percent: 80
}
and I have the dependency installed as well
<dependencies>
<dependency>
<groupId>com.typesafe.akka</groupId>
<artifactId>akka-actor_2.11</artifactId>
<version>${akka-actor_2.11.version}</version>
</dependency>
<dependency>
<groupId>com.typesafe.akka</groupId>
<artifactId>akka-testkit_2.11</artifactId>
<version>${akka-testkit_2.11.version}</version>
</dependency>
</dependencies>
and with versions
<akka-actor_2.11.version>2.3.9</akka-actor_2.11.version>
<akka-testkit_2.11.version>2.3.10</akka-testkit_2.11.version>
Where is bug/inconsistency?
This may not be a bug at all and difference in understanding.
We use maven scopes to decide which dependencies should be available and when. Usually with tests, we use <scope>test</scope> to make the dependency available only in test and not in final application jar when bundled.
Now if we make use of this kind of tests(Expecting Log Messages), we need to remove <scope>test</scope> to let the application run correctly and tests pass at the same time. Which means that that dependency akka-testkit need to be present in the final jar as well since application.conf needs it to load akka.testkit.TestEventListener.
This if all sounds correct, couples production and test code together and is required in current setup.
Again, I may have missed something very basic here, but the only way I could run the application and let the test pass is by combining the dependencies akka-actor and akka-testkit together.
What are your thoughts?

Add an application.conf in your test resources:
src/test/resources/application.conf
Contents could look like:
include "../../main/resources/application"
akka.loggers = [akka.testkit.TestEventListener]
This application.conf will be loaded only during tests, so you can scope your akka-testkit dependency to test only.

REST-Driver ClientDriverRule error on instantiation

I decided to try the rest-driver library for my unit tests.
I have the following code:
public class RemoteSessionAccountantTest {
#Rule
public ClientDriverRule driver = new ClientDriverRule();
// ...
#Test
public void singleUserSession() throws IOException, JSONException {
driver.addExpectation(
onRequestTo("http://myTestUrl/anyUsername").withMethod(Method.GET),
giveResponse("[{\"contractCode\":\"1234\"}]", "application/json"));
// ...
}
// ...
}
But I'm not even reaching the test case because instantiating the ClientDriverRule results in an error:
com.github.restdriver.clientdriver.exception.ClientDriverSetupException:
Error starting jetty on port 0
...
Caused by: java.lang.IllegalStateException: Local port was not set
Now I've tried setting a specific port, but it didn't help.
I have jetty v9.3.0 (also tried versions 8.x.x, 9.1.x, 9.2.x with no luck)
rest-client-driver version 1.1.42
The problem seems to be coming from jetty, but I cannot figure out what exactly.

How to lookup EJB remoting from a EJB application into a java application?

I'm working on a tow projects , EJB project (where i have all my EJB Remote) and the other project is a simple java application with main method. but when i try to lookup an EJB statless and remote via JNDI , it doesn't work.
Really i used many way but no good results.
this is the code and the consol error .
1) My Ejb project when i clean and install it , it gives me a jar file.
2) I use Jboss EAP6.
3) i have a jndi.properties insid of src/main/ressouces where i have this :
java.naming.factory.initial=org.jnp.interfaces.NamingContextFactory
java.naming.factory.url.pkgs=org.jboss.naming:org.jnp.interfaces
java.naming.provider.url = localhost:1099
PersonalFactory.java (EJB of the EJB project)
import javax.ejb.Remote;
import javax.ejb.Stateless;
import com.lazrak.common.logging.CommonLogger;
import com.lazrak.remotes.IPersonFactoryRemote;
#Remote(IPersonFactoryRemote.class)
#Stateless
public class PersonFactory implements IPersonFactoryRemote
#Override
public void findMe() {
System.out.println("I'am inside of the method findMe");
}
MyMainClass.java (where i have the main method and it is in the second java project)
All import ...
public class MyMainClass {
public static void main(String[] args) throws Exception {
System.out.println("Main start ");
invokeStatelessBean();
}
private static void invokeStatelessBean(){
Hashtable props = new Hashtable();
props.put(Context.INITIAL_CONTEXT_FACTORY,"org.jnp.interfaces.NamingContextFactory");
props.put(Context.URL_PKG_PREFIXES,"org.jboss.ejb.client.naming");
props.put(Context.PROVIDER_URL,"jnp://localhost:1099");
InitialContext context = null;
try {
context = new InitialContext(props);
} catch (NamingException e) {
System.out.println("Faild to add properties to InitialContext"+e.getMessage());
}
try {
final IPersonFactoryRemote statelessRemoteCalculator = (IPersonFactoryRemote) context
.lookup("ejb:"+moduleName+"/"+PersonFactory.class.getSimpleName();+"/"+IPersonFactoryRemote.class.getName());
} catch (NamingException e) {
System.out.println("EJB Remot doesn't been fined\n"+e.getMessage());
}
}
}
when i run my main application , it gives me that :
Main start
enter 2014-09-26 15:57:26,098 DEBUG org.jboss.logging - InitialContextFactory.java:64 - Logging Provider: org.jboss.logging.Log4jLoggerProvider
Exception in thread "main" java.lang.NoClassDefFoundError: org/jboss/remoting3/spi/ConnectionProviderFactory
at org.jboss.naming.remote.client.InitialContextFactory.<clinit>(InitialContextFactory.java:99)
at org.jboss.naming.remote.client.InitialContextFactory.<clinit>(InitialContextFactory.java:99)
at java.lang.Class.forName0(Native Method)
at java.lang.Class.forName0(Native Method)
at java.lang.Class.forName0(Native Method)
at java.lang.Class.forName(Class.java:270)
at com.sun.naming.internal.VersionHelper12.loadClass(VersionHelper12.java:72)
at com.sun.naming.internal.VersionHelper12.loadClass(VersionHelper12.java:61)
at javax.naming.spi.NamingManager.getInitialContext(NamingManager.java:671)
at javax.naming.InitialContext.getDefaultInitCtx(InitialContext.java:307)
at javax.naming.InitialContext.init(InitialContext.java:242)
at javax.naming.InitialContext.<init>(InitialContext.java:216)
at RemoteEJBClient.invokeStatelessBean(RemoteEJBClient.java:42)
at RemoteEJBClient.main(RemoteEJBClient.java:18)
Caused by: java.lang.ClassNotFoundException:
org.jboss.remoting3.spi.ConnectionProviderFactory
at java.net.URLClassLoader$1.run(URLClassLoader.java:366)
at java.net.URLClassLoader$1.run(URLClassLoader.java:355)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(URLClassLoader.java:354)
at java.lang.ClassLoader.loadClass(ClassLoader.java:425)
at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:308)
at java.lang.ClassLoader.loadClass(ClassLoader.java:358)
... 11 more

props.put(Context.INITIAL_CONTEXT_FACTORY,"org.jnp.interfaces.NamingContextFactory");
props.put(Context.URL_PKG_PREFIXES,"org.jboss.ejb.client.naming");
props.put(Context.PROVIDER_URL,"jnp://localhost:1099");
Those properties are used for connecting to an older jboss version.. For eap 6, you have to use remoting instead of jnp.
Here´s a tutorial that will show you how to connect
http://www.mastertheboss.com/jboss-server/jboss-as-7/jboss-as-7-remote-ejb-client-tutorial

RMI UnmarshalException ClassNotFoundException server only

I have followed several tutorials on running an RMI application. However, I can't seem to make it work, as I keep getting stuck on the same exception.
I am, at this point only running a server, so no client communication is involved.
I have a simple RMI program that consists of:
A server class SortServer
An interface ISortFactory<T>
An implementation QuickSortFactory<T>
An RMIUtils class
A policy file allpermissions.policy
Policy file contents
grant {
permission java.security.AllPermission;
};
RMIUtils
static {
// Set policy
setPolicy();
// Set Security manager if not present
if(System.getSecurityManager() == null) {
System.setSecurityManager(new SecurityManager());
}
setHost("127.0.0.1");
}
public static void addCodeBaseFor(Class<?> clazz) {
System.setProperty("java.rmi.server.codebase", clazz.getProtectionDomain().getCodeSource().getLocation().toString());
}
public static void setPolicy() {
System.setProperty("java.security.policy", PolicyFileLocator.getLocationOfPolicyFile());
}
public static void setHost(String hostAddress) {
System.setProperty("java.rmi.server.hostname", hostAddress);
}
public static String getHost() {
return System.getProperty("java.rmi.server.hostname");
}
SortServer
public static void main(String[] args) throws RemoteException, MalformedURLException, AlreadyBoundException {
RMIUtils.addCodeBaseFor(ISortFactory.class);
ISortFactory<String> strQSFactory = new QuickSortFactory<String>();
// Same error: Naming.bind("rmi://"+RMIUtils.getHost()+"/quicksortfactory", strQSFactory);
Registry registry = LocateRegistry.getRegistry();
registry.rebind("quicksortfactory-string", strQSFactory);
}
ISortFactory
public interface ISortFactory<T> extends Remote {
public ISorter<T> createSorter() throws RemoteException;
}
Implementing QuickSortFactory
public class QuickSortFactory<T> extends UnicastRemoteObject implements ISortFactory<T> {
private static final long serialVersionUID = -4856366323843718656L;
public QuickSortFactory() throws RemoteException {
super();
}
#Override
public ISorter<T> createSorter() throws RemoteException {
return new QuickSort<T>();
}
}
ISorter, QuickSorter and referenced objects
ISorter extends Remote and its methods throw RemoteExceptions.
QuickSort extends SortLogic and implements ISorter. Its methods throw RemoteExceptions.
SortLogic extends UnicastRemoteObject. Its methods throw RemoteExceptions.
Since I use JDK 1.5+, I shouldn't need to worry about stubs.
The rmiregistry is running fine, or I would have different errors.
Literal console output
2013-11-20 00:57:00 DEBUG RMIUtils:33 - Policy file path changed to 'C:\Users\Mark\AppData\Local\Temp\rmi-sorter5248481413010560777.policy'
2013-11-20 00:57:00 DEBUG RMIUtils:38 - RMI hostname set to 127.0.0.1
2013-11-20 00:57:00 DEBUG RMIUtils:27 - Codebase path added: file:/F:/Development/Git/Personal/parallel-sorter/bin/
Exception in thread "main" java.rmi.ServerException: RemoteException occurred in server thread; nested exception is:
java.rmi.UnmarshalException: error unmarshalling arguments; nested exception is:
java.lang.ClassNotFoundException: nl.marktielemans.rmisorter.server.factory.ISortFactory
at sun.rmi.server.UnicastServerRef.oldDispatch(UnicastServerRef.java:400)
at sun.rmi.server.UnicastServerRef.dispatch(UnicastServerRef.java:248)
at sun.rmi.transport.Transport$1.run(Transport.java:159)
at java.security.AccessController.doPrivileged(Native Method)
at sun.rmi.transport.Transport.serviceCall(Transport.java:155)
at sun.rmi.transport.tcp.TCPTransport.handleMessages(TCPTransport.java:535)
at sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.run0(TCPTransport.java:790)
at sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.run(TCPTransport.java:649)
at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:895)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:918)
at java.lang.Thread.run(Thread.java:662)
at sun.rmi.transport.StreamRemoteCall.exceptionReceivedFromServer(StreamRemoteCall.java:255)
at sun.rmi.transport.StreamRemoteCall.executeCall(StreamRemoteCall.java:233)
at sun.rmi.server.UnicastRef.invoke(UnicastRef.java:359)
at sun.rmi.registry.RegistryImpl_Stub.rebind(Unknown Source)
at nl.marktielemans.rmisorter.server.SortServer.main(SortServer.java:42)
Caused by: java.rmi.UnmarshalException: error unmarshalling arguments; nested exception is:
java.lang.ClassNotFoundException: nl.marktielemans.rmisorter.server.factory.ISortFactory
at sun.rmi.registry.RegistryImpl_Skel.dispatch(Unknown Source)
at sun.rmi.server.UnicastServerRef.oldDispatch(UnicastServerRef.java:390)
at sun.rmi.server.UnicastServerRef.dispatch(UnicastServerRef.java:248)
at sun.rmi.transport.Transport$1.run(Transport.java:159)
at java.security.AccessController.doPrivileged(Native Method)
at sun.rmi.transport.Transport.serviceCall(Transport.java:155)
at sun.rmi.transport.tcp.TCPTransport.handleMessages(TCPTransport.java:535)
at sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.run0(TCPTransport.java:790)
at sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.run(TCPTransport.java:649)
at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:895)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:918)
at java.lang.Thread.run(Thread.java:662)
Caused by: java.lang.ClassNotFoundException: nl.marktielemans.rmisorter.server.factory.ISortFactory
at java.net.URLClassLoader$1.run(URLClassLoader.java:202)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(URLClassLoader.java:190)
at java.lang.ClassLoader.loadClass(ClassLoader.java:306)
at java.lang.ClassLoader.loadClass(ClassLoader.java:247)
at java.lang.Class.forName0(Native Method)
at java.lang.Class.forName(Class.java:249)
at sun.rmi.server.LoaderHandler.loadProxyInterfaces(LoaderHandler.java:709)
at sun.rmi.server.LoaderHandler.loadProxyClass(LoaderHandler.java:653)
at sun.rmi.server.LoaderHandler.loadProxyClass(LoaderHandler.java:590)
at java.rmi.server.RMIClassLoader$2.loadProxyClass(RMIClassLoader.java:628)
at java.rmi.server.RMIClassLoader.loadProxyClass(RMIClassLoader.java:294)
at sun.rmi.server.MarshalInputStream.resolveProxyClass(MarshalInputStream.java:242)
at java.io.ObjectInputStream.readProxyDesc(ObjectInputStream.java:1535)
at java.io.ObjectInputStream.readClassDesc(ObjectInputStream.java:1491)
at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1748)
at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1327)
at java.io.ObjectInputStream.readObject(ObjectInputStream.java:349)
... 12 more
Without codebase parameter
I've tried without codebase parameter, but am not sure how to include the classes in the RMI classpath as I read I should.
I've tried starting the registry from the code in SortServer using RegistryLocator.getRegistry() as above, as well as starting it from a command line opened in my bin directory. Still, I would get the same error.

java.lang.ClassNotFoundException: nl.marktielemans.rmisorter.server.factory.ISortFactory
...
at sun.rmi.registry.RegistryImpl_Stub.rebind(Unknown Source)
The Registry doesn't have that class available in its CLASSPATH.
If you're using the java.rmi.server.codebase property you need to set it before exporting any remote objects, and the codebase needs to be something the Registry and the clients can use.
public static void addCodeBaseFor(Class<?> clazz) {
System.setProperty("java.rmi.server.codebase", clazz.getProtectionDomain().getCodeSource().getLocation().toString());
}
This isn't going to work. The location on the server of the containing JAR file can't be seen from the client. Generally it is an http: or ftp: URL.