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Mule: Remote Dispatcher fails on Deserialization at the Server

We have a Mule Service running on a server. I am developing a stand alone Mule Client that connects directly into the Mule service.
When I run the client, I am receiving the below error:
ERROR 2015-09-23 10:36:02,724 [[cheetah-web-services].connector.http.mule.default.receiver.03] org.mule.exception.DefaultMessagingExceptionStrategy:
********************************************************************************
Message : Failed to transform from "byte[]" to "Object"
Type : org.mule.api.transformer.TransformerException
Code : MULE_ERROR-109
JavaDoc : http://www.mulesoft.org/docs/site/current3/apidocs/org/mule/api/transformer/TransformerException.html
Transformer : ByteArrayToMuleMessage{this=1574dd9, name='null', ignoreBadInput=false, returnClass=SimpleDataType{type=org.mule.api.MuleMessage, mimeType='*/*'}, sourceTypes=[SimpleDataType{type=[B, mimeType='*/*'}, SimpleDataType{type=java.io.InputStream, mimeType='*/*'}]}
********************************************************************************
Exception stack is:
1. com.mycompany.myapp.service.model.ServiceSearch; class invalid for deserialization (java.io.InvalidClassException)
java.io.ObjectStreamClass$ExceptionInfo:150 (null)
2. java.io.InvalidClassException: com.mycompany.myapp.service.model.ServiceSearch; class invalid for deserialization (org.apache.commons.lang.SerializationException)
org.mule.util.SerializationUtils:85 (null)
3. Failed to transform from "byte[]" to "Object" (org.mule.api.transformer.TransformerException)
org.mule.transformer.simple.ByteArrayToSerializable:54 (http://www.mulesoft.org/docs/site/current3/apidocs/org/mule/api/transformer/TransformerException.html)
********************************************************************************
Root Exception stack trace:
java.io.InvalidClassException: com.mycompany.myapp.service.model.ServiceSearch; class invalid for deserialization
I have setup a remote dispatcher agent on the server.
<client:remote-dispatcher-agent>
<client:remote-endpoint address="http://localhost:20809" exchange-pattern="request-response" responseTimeout="10000"/>
I have created a separate mule client.
<client:remote-dispatcher-agent>
<client:remote-endpoint ref="remoteDispatcherChannel" />
<client:xml-wire-format/>
</client:remote-dispatcher-agent>
<http:endpoint name="remoteDispatcherChannel"
host="localhost"
port="20809"
path="_remoting"
exchange-pattern="request-response" />
Below is the Client Code. The ServiceSearch object implements all Serializable.
MuleClient muleClient = new MuleClient(true);
RemoteDispatcher dispatcher2 = muleClient.getRemoteDispatcher("http://127.0.0.1:20809/_remoting");
MuleMessage result = dispatcher2.sendToRemoteComponent("myAppServiceDelegate", ServiceSearch, msgMap);
Below is the Mule Service flow on the server I am trying to get into. I am coming in on the invoker step. I choice this step as I could sent the object directly to the service in the required format
<flow name="post:/service/search:my-web-services-config" initialState="started">
<logger level="INFO" doc:name="Log Request Properties" message="Request Type: #[message.inboundProperties.'http.method'], Request Path: #[message.inboundProperties.'http.request.path'], Request Params: #[message.inboundProperties.'http.query.params']" />
<json:json-to-object-transformer returnClass="com.mycompany.myapp.service.model.ServiceSearch" ignoreBadInput="true" mimeType="application/json" doc:name="Request JSON to ServiceSearch" />
<invoke object-ref="myappServiceDelegate" method="processSearch" methodArguments="#[payload],#[flowVars.'CLIENT_ID']" doc:name="Calling Search Delegate" />
<logger message="Generated DSL: #[payload.queryDSL]" level="INFO" doc:name="Log Query DSL" />
<flow-ref name="BigDataSearchFlow" doc:name="Big Data Flow" />
<exception-strategy ref="globalResponseExceptionStrategy" doc:name="Reference Exception Strategy" />
</flow>
I would appreciate some feedback on this approach and suggestions on what I should look for in the ServiceSearch object.
Russ

You are using an order/newer version of com.mycompany.myapp.service.model.ServiceSearch or none at all at the server side.
Please make sure both ends do have the very same version of the file.

Using Camel netty4 "unsupported message type" exception when sending String over UDP

Here is part of my camel route
<bean class="io.netty.handler.codec.string.StringEncoder" id="stringEncoder">
<constructor-arg value="UTF-8"/>
</bean>
<camelContext xmlns="http://camel.apache.org/schema/spring" id="camelContext">
<route>
<from uri="direct:startMessageSend"/>
<to uri="netty4:udp://localhost:5000?encoder=#stringEncoder&sync=false"/>
</route>
</camelContext>
When I send a simple string over to this endpoint.
String udpMsgBody = "hello world!";
template.sendBody(udpMsgBody);
I get following exception.
Caused by: java.lang.UnsupportedOperationException: unsupported message type: DefaultAddressedEnvelope (expected: DatagramPacket, AddressedEnvelope<ByteBuf, SocketAddress>, ByteBuf)
at io.netty.channel.socket.nio.NioDatagramChannel.filterOutboundMessage(NioDatagramChannel.java:324)
at io.netty.channel.AbstractChannel$AbstractUnsafe.write(AbstractChannel.java:697)
at io.netty.channel.DefaultChannelPipeline$HeadContext.write(DefaultChannelPipeline.java:1114)
at io.netty.channel.AbstractChannelHandlerContext.invokeWrite(AbstractChannelHandlerContext.java:705)
at io.netty.channel.AbstractChannelHandlerContext.write(AbstractChannelHandlerContext.java:763)
at io.netty.channel.AbstractChannelHandlerContext.write(AbstractChannelHandlerContext.java:698)
at io.netty.handler.codec.MessageToMessageEncoder.write(MessageToMessageEncoder.java:102)
at io.netty.channel.AbstractChannelHandlerContext.invokeWrite(AbstractChannelHandlerContext.java:705)
at io.netty.channel.AbstractChannelHandlerContext.access$1900(AbstractChannelHandlerContext.java:32)
at io.netty.channel.AbstractChannelHandlerContext$AbstractWriteTask.write(AbstractChannelHandlerContext.java:980)
at io.netty.channel.AbstractChannelHandlerContext$WriteAndFlushTask.write(AbstractChannelHandlerContext.java:1032)
at io.netty.channel.AbstractChannelHandlerContext$AbstractWriteTask.run(AbstractChannelHandlerContext.java:965)
at io.netty.util.concurrent.SingleThreadEventExecutor.runAllTasks(SingleThreadEventExecutor.java:357)
at io.netty.channel.nio.NioEventLoop.run(NioEventLoop.java:357)
at io.netty.util.concurrent.SingleThreadEventExecutor$2.run(SingleThreadEventExecutor.java:111)
at java.lang.Thread.run(Thread.java:744)
However when I send the Exchange body as byteBuf I get no exception and message is sent over UDP fine.
ByteBuf bbuffer = Unpooled.copiedBuffer(udpMsgBody.getBytes());
template.sendBody(udpMsgBody);
My question is that even though I am using a proper StringEncoder, why can I not send a string over netty4?
Note I am using camel 2.15.2

Polling HTTP endpoint followed by jersey REST WS does not work in Mule 3.5

I have a requirement where i need to poll a rest service and then proxy the response from this web service on to a REST web service.
I am using Mule 3.5 and my flow looks like the below.
I get the below exception where the REST service is being invoked
********************************************************************************
Message : Failed to invoke JerseyResourcesComponent{TestFlow.component.1106552446}. Component that caused exception is: JerseyResourcesComponent{TestFlow.component.1106552446}. Message payload is of type: String
Code : MULE_ERROR--2
--------------------------------------------------------------------------------
Exception stack is:
1. null (java.lang.NullPointerException)
org.mule.module.jersey.JerseyResourcesComponent:192 (null)
2. Failed to invoke JerseyResourcesComponent{TestFlow.component.1106552446}. Component that caused exception is: JerseyResourcesComponent{TestFlow.component.1106552446}. Message payload is of type: String (org.mule.component.ComponentException)
org.mule.component.AbstractComponent:144 (http://www.mulesoft.org/docs/site/current3/apidocs/org/mule/component/ComponentException.html)
--------------------------------------------------------------------------------
Root Exception stack trace:
java.lang.NullPointerException
at org.mule.module.jersey.JerseyResourcesComponent.getBaseUri(JerseyResourcesComponent.java:192)
at org.mule.module.jersey.JerseyResourcesComponent.doInvoke(JerseyResourcesComponent.java:146)
at org.mule.component.AbstractComponent.invokeInternal(AbstractComponent.java:122)
+ 3 more (set debug level logging or '-Dmule.verbose.exceptions=true' for everything)
********************************************************************************
After debugging i figured out it is because Mule expects the MuleMessage inbound property for contextPath to be populated however in this case it is null.
In JerseyResourcesComponent line 117 is returned as null and hence line 195 throws a NPE.
I wanted to know if this kind of requirement/pattern is invalid or is it some kind of limitation in the way Mule is handling its messaging infrastructure ?
The flow xml just in case you want to inspect it.
<flow name="TestFlow" doc:name="TestFlow">
<poll doc:name="Poll">
<fixed-frequency-scheduler frequency="10" timeUnit="SECONDS" startDelay="10"/>
<http:outbound-endpoint exchange-pattern="request-response" host="localhost" port="8080" doc:name="Order Generator" method="GET" contentType="application/json" path="order"/>
</poll>
<object-to-string-transformer doc:name="Object to String"/>
<jersey:resources doc:name="Tax Calculator">
<component class="org.nthdimenzion.TaxCalculator"/>
</jersey:resources>
<logger level="INFO" doc:name="Logger"/>
</flow>
PS : The work around i got was to use a java/spring component instead of a REST WS and then call the REST WS from the Java component.

In mule3, how to set a custom expression for choice-when router?

I am new to Mule, I want to validate the timestamp and nonce parameter from URI for preventing the replay attack. I use choice-when router, when the timestamp and nonce is valid(the validation process is complex), forward the request to backend rest service, otherwise return error code and message. I found a lot of MEL usage for choice-when, but can I define a custom expression use java? and there is a example available?
URI example:
http://muledemo.org/ci2/ni/del?id=0xe413&timestamp=1376022133&nonce=a03ed9c
code snippets:
<choice doc:name="Choice">
<when expression="???how to call a java validator???">
</when>
<otherwise>
<processor-chain doc:name="Processor Chain">
<echo-component doc:name="Echo" />
<http:outbound-endpoint exchange-pattern="request-response" method="POST"
address="http://localhost:8081#[message.inboundProperties['http.request']]" doc:name="HTTP" />
</processor-chain>
</otherwise>
</choice>
EDIT:
XML config:
<spring:beans>
<spring:bean id="replayAttackCheck" class="org.jamee.demo.mule.ReplayAttackCheck"/>
</spring:beans>
... ...
<when expression="#[replayAttackCheck.validate(payload)]">
<expression-component doc:name="Check Required Params"><![CDATA[payload="{\"code\":\"PA002\", \"message\":\"timestamp or nonce is illegal\"}"]]>
</expression-component>
</when>
Error log:
ERROR 2013-08-09 14:32:39,090 [[demo.router].connector.http.mule.default.receiver.02] org.mule.exception.DefaultMessagingExceptionStrategy:
********************************************************************************
Message : Execution of the expression "replayAttackCheck.validate(payload)" failed. (org.mule.api.expression.ExpressionRuntimeException). Message payload is of type: HashMap
Code : MULE_ERROR--2
--------------------------------------------------------------------------------
Exception stack is:
1. [Error: unresolvable property or identifier: replayAttackCheck]
[Near : {... replayAttackCheck.validate(pay ....}]

Correct MEL syntax:
<when expression="#[app.registry.replayAttackCheck.validate(payload)]">

You just use the fully qualified path
#[com.mulesoft.foo(payload, someFooVar)]
Alternatively you can define it globally for your app in your configuration and the use the "foo" function in your MEL expressions
<configuration doc:name="Config">
<expression-language autoResolveVariables="false">
<global-functions>
def foo(fooVar){
return com.mulesoft.foo(payload, fooVar);
}
</global-functions>
</expression-language>
</configuration>

Java Client for WCF on HTTPS

I can't figure out how to proceed for the next scenario.
I have a WCF service up and running with security like this:
<binding name="SSLBinding">
<security mode="Transport">
<transport clientCredentialType="None"/>
<!--<message clientCredentialType="UserName"/>-->
</security>
</binding>
I was able to make a dummy ceritificate in the IIS 5.0, so this WCF can be exposed on HTTPS.
Finally using a .Net client I can communicate with the Service, something like this:
private void randomMethod
{
//This is necesary, cause the certificate isn´t valid
ServicePointManager.ServerCertificateValidationCallback =
new RemoteCertificateValidationCallback(IgnoreCertificateErrorHandler);
RefHTTPS.GestionesServiceClient service = new RefHTTPS.GestionesServiceClient();
richTextBox1.Text = service.version();
}
public static bool IgnoreCertificateErrorHandler(object sender, X509Certificate certificate, X509Chain chain, SslPolicyErrors sslPolicyErrors)
{
return true;
}
ISSUE: When I try to do this on a Java client I get Exceptions.
Someone has been able to do something like this, I need some guidance here.
I read a lot of posts on the web, but nothing works for me.
Edit (merged from additional content from OP, was posted as a question and flagged):
This is the full config (it has a config tag, but isn't showing):
<?xml version="1.0"?>
<system.web>
<compilation debug="true">
</compilation>
</system.web>
<system.serviceModel>
<bindings>
<binding name="SSLBinding">
<security mode="Transport">
<transport clientCredentialType="None"/>
</security>
</binding>
</bindings>
<serviceHostingEnvironment>
<baseAddressPrefixFilters>
<add prefix="https://x.x.x.x"/>
</baseAddressPrefixFilters>
</serviceHostingEnvironment>
<services>
<service behaviorConfiguration="WSGestiones.GestionesServiceBehavior" name="WSGestiones.GestionesService">
<endpoint address="https://x.x.x.x/GestionesWS/GestionesService.svc"
binding="basicHttpBinding" bindingConfiguration="SSLBinding" contract="WSGestiones.IGestionesService">
<identity>
<dns value="localhost" />
</identity>
</endpoint>
<endpoint address="https://x.x.x.x/GestionesWS/GestionesService.svc/mex"
binding="mexHttpsBinding" contract="IMetadataExchange">
<identity>
<dns value="IPADDRESS" />
</identity>
</endpoint>
</service>
</services>
<behaviors>
<serviceBehaviors>
<behavior name="WSGestiones.GestionesServiceBehavior">
<serviceMetadata httpsGetEnabled="true" httpsGetUrl="https://x.x.x.x/GestionesWS/GestionesService.svc" />
<serviceDebug includeExceptionDetailInFaults="true" />
</behavior>
</serviceBehaviors>
</behaviors>
I was able to add the certificate to the trusted list of my PC, I also added to the JDK or wherever in Java.
Some of my errors was:
Exception in thread "main" javax.xml.ws.WebServiceException: Cannot find 'https://x.x.x.x/GestionesWS/GestionesService.svc?wsdl' wsdl. Place the resource correctly in the classpath.
HTTP transport error: javax.net.ssl.SSLHandshakeException: sun.security.validator.ValidatorException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
Exception in thread "main" com.sun.xml.internal.ws.client.ClientTransportException: HTTP transport error: javax.net.ssl.SSLHandshakeException: java.security.cert.CertificateException: No subject alternative names present
Exception in thread "main" com.sun.xml.internal.ws.client.ClientTransportException: HTTP transport error: java.net.SocketException: java.security.NoSuchAlgorithmException: Error constructing implementation (algorithm: Default, provider: SunJSSE, class: com.sun.net.ssl.internal.ssl.DefaultSSLContextImpl)
Exception in thread "main" com.sun.xml.internal.ws.client.ClientTransportException: HTTP transport error: java.io.IOException: HTTPS hostname wrong: should be <x.x.x.x>
Exception in thread "main" javax.xml.ws.soap.SOAPFaultException: An error occurred when verifying security for the message.
Exception in thread "main" com.sun.xml.internal.ws.client.ClientTransportException: The server sent HTTP status code 401: Access Denied
Every time I hit an error, searched online and "fixed", a new one appears....in my 5th day of "fixes" I say "this is an infinite loop".
So....instead of trying to fix the errors, I was thinking of "fixing the logic".

I was also trying to connect to a server with a self-signed certificate for a service endpoint via Netbeans. When I tried to make a new connection object, I came across this runtime exception:
javax.xml.ws.WebServiceException: java.io.IOException: HTTPS hostname wrong: should be <hostname as in the certificate>
And I finally found a section about this exception in Metro's documentation. The code they provide unfortunately looks like it's intended only to be a temporary solution, but at least it looks like you can get around this issue.
I modified the code they provided by creating a static method that I call at the top of my main method where I always 'verify' the site I connect to for my service:
private static void overrideDefaultHostnameVerifier() {
//WORKAROUND. TO BE REMOVED.
javax.net.ssl.HttpsURLConnection.setDefaultHostnameVerifier(
new javax.net.ssl.HostnameVerifier() {
#Override
public boolean verify(String hostname, javax.net.ssl.SSLSession sslSession) {
return true;
}
});
}
The true solution to this problem looks to be getting a real issued certificate on the server hosting the service endpoint.