Java exception raised using XML-RPC API

my %pageoptions = (
    minorEdit => 1,
    versionComment => 'Auto generated',
);  
$wiki = XMLRPC::Lite -> proxy($url) -> uri ($url);
$authToken = $wiki->call('confluence2.login', $user,$pass)->result();
$page = $wiki->call('confluence2.getPage', $authToken, $myspace, $mypage)->result();
$page->{content} = "<p>hello</p>";
$result = $wiki->call('confluence2.updatePage', $authToken, $page, \%pageoptions)->result();
print "Updated page with result $result\n";

2014-08-18 12:14:24,915 INFO [TP-Processor43] [confluence.rpc.auth.TokenAuthenticationInvocationHandler] invokeAuthenticatedMethod Executing remote API method [ getPage ] as user [ dbalmer ]
2014-08-18 12:14:25,078 INFO [TP-Processor1] [confluence.rpc.auth.TokenAuthenticationInvocationHandler] invokeAuthenticatedMethod Executing remote API method [ updatePage ] as user [ dbalmer ]
2014-08-18 12:14:25,079 ERROR [TP-Processor1] [confluence.rpc.auth.TokenAuthenticationInvocationHandler] invokeAuthenticatedMethod Error during invocation of method: updatePage
 -- url: /rpc/xmlrpc | userName: dbalmer | method: updatePage
java.lang.ClassCastException: java.lang.Integer cannot be cast to java.lang.String
	at com.atlassian.confluence.rpc.xmlrpc.XmlRpcUtils.convertLong(XmlRpcUtils.java:53)
	at com.atlassian.confluence.rpc.xmlrpc.XmlRpcUtils.createRemotePageFromPageStruct(XmlRpcUtils.java:21)
	at com.atlassian.confluence.rpc.xmlrpc.ConfluenceXmlRpcHandlerImpl.updatePage(ConfluenceXmlRpcHandlerImpl.java:442)
	at sun.reflect.GeneratedMethodAccessor1182.invoke(Unknown Source)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
	at java.lang.reflect.Method.invoke(Unknown Source)
	at com.atlassian.confluence.rpc.auth.TokenAuthenticationInvocationHandler.invokeAuthenticatedMethod(TokenAuthenticationInvocationHandler.java:93)
	at com.atlassian.confluence.rpc.auth.TokenAuthenticationInvocationHandler.invoke(TokenAuthenticationInvocationHandler.java:69)
	at com.sun.proxy.$Proxy2277.updatePage(Unknown Source)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
	at java.lang.reflect.Method.invoke(Unknown Source)
	at org.apache.xmlrpc.Invoker.execute(Invoker.java:130)
	at org.apache.xmlrpc.XmlRpcWorker.invokeHandler(XmlRpcWorker.java:84)