Error writing to server in clientSidePush

I am trying to apply a livecycle policy to a document with the following code:

Properties properties = new Properties();

        properties.setProperty(ServiceClientFactoryProperties.DSC_DEFAULT_SOAP_ENDPOINT,

                "https://hostOfJBoss:port");

        properties.setProperty(ServiceClientFactoryProperties.DSC_TRANSPORT_PROTOCOL,

                ServiceClientFactoryProperties.DSC_SOAP_PROTOCOL);

        properties.setProperty(ServiceClientFactoryProperties.DSC_SERVER_TYPE,

                ServiceClientFactoryProperties.DSC_JBOSS_SERVER_TYPE);

        properties.setProperty(ServiceClientFactoryProperties.DSC_CREDENTIAL_USERNAME, "username");

        properties.setProperty(ServiceClientFactoryProperties.DSC_CREDENTIAL_PASSWORD, "password");

        ServiceClientFactory client = ServiceClientFactory.createInstance(properties);

        FileInputStream fis = null;

        try {

            fis = new FileInputStream("test.pdf");

        } catch (FileNotFoundException e) {

            e.printStackTrace();

        }

        Document pdf = new Document(fis);

        RightsManagementClient rmClient = new RightsManagementClient(client);

        DocumentManager docManager = rmClient.getDocumentManager();

        RMSecureDocumentResult finalPdf = null;

        try {

            finalPdf = docManager.protectDocument(pdf, "test.pdf", "Policy", "Policy",

                    null, null, null);

          } catch(.......)

However, I am getting an error on in the protectDocument method:

Sep 15, 2012 4:17:46 PM com.adobe.idp.DocumentManagerClient clientSidePush

SEVERE: DOCS001: Unexpected exception. See the stack trace for details.

com.adobe.idp.DocumentError: java.io.IOException: Error writing to server

    at com.adobe.idp.DocumentManagerClient.clientSidePush(DocumentManagerClient.java:341)

    at com.adobe.idp.Document.doInputStream(Document.java:1693)

    at com.adobe.idp.Document.passivateInitData(Document.java:1579)

    at com.adobe.idp.Document.passivate(Document.java:1252)

    at com.adobe.idp.Document.passivate(Document.java:1196)

    at com.adobe.idp.DocumentManagerClient.passivate(DocumentManagerClient.java:258)

    at com.adobe.idp.dsc.provider.impl.base.RequestOutputStream.defaultPassivate(RequestOutputSt ream.java:40)

    at com.adobe.idp.DocumentRequestOutputStream.passivate(DocumentRequestOutputStream.java:56)

    at com.adobe.idp.Document.writeObject(Document.java:882)

    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)

    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)

    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)

    at java.lang.reflect.Method.invoke(Method.java:597)

    at java.io.ObjectStreamClass.invokeWriteObject(ObjectStreamClass.java:945)

    at java.io.ObjectOutputStream.writeSerialData(ObjectOutputStream.java:1469)

    at java.io.ObjectOutputStream.writeOrdinaryObject(ObjectOutputStream.java:1400)

    at java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1158)

    at java.io.ObjectOutputStream.writeObject(ObjectOutputStream.java:330)

    at java.util.HashMap.writeObject(HashMap.java:1001)

    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)

    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)

    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)

    at java.lang.reflect.Method.invoke(Method.java:597)

    at java.io.ObjectStreamClass.invokeWriteObject(ObjectStreamClass.java:945)

    at java.io.ObjectOutputStream.writeSerialData(ObjectOutputStream.java:1469)

    at java.io.ObjectOutputStream.writeOrdinaryObject(ObjectOutputStream.java:1400)

    at java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1158)

    at java.io.ObjectOutputStream.defaultWriteFields(ObjectOutputStream.java:1518)

    at java.io.ObjectOutputStream.writeSerialData(ObjectOutputStream.java:1483)

    at java.io.ObjectOutputStream.writeOrdinaryObject(ObjectOutputStream.java:1400)

    at java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1158)

    at java.io.ObjectOutputStream.writeObject(ObjectOutputStream.java:330)

    at com.adobe.idp.dsc.provider.impl.soap.axis.sdk.SoapSdkBindingStubUtil.serializeRequest(Soa pSdkBindingStubUtil.java:78)

    at com.adobe.idp.dsc.provider.impl.soap.axis.sdk.SoapAxisDispatcher.doSend(SoapAxisDispatche r.java:124)

    at com.adobe.idp.dsc.provider.impl.base.AbstractMessageDispatcher.send(AbstractMessageDispat cher.java:66)

    at com.adobe.idp.dsc.clientsdk.ServiceClient.invoke(ServiceClient.java:208)

    at com.adobe.livecycle.rightsmanagement.client.impl.scf.SCFConnection.protectDocument(SCFCon nection.java:1050)

    at com.adobe.livecycle.rightsmanagement.client.impl.DocumentManagerImpl.protectDocument(Docu mentManagerImpl.java:146)

    at Main.main(Main.java:43)

Can someone please help me with this error?