PAPI-WS Arguments passing

hi all,
I am confusing with PAPI-WS argument passing.
ArgumentsBean argBean = new ArgumentsBean();
ArgumentsBean.Arguments args = argBean.getArguments();
ArgumentsBean.Arguments.Entry entry = new ArgumentsBean.Arguments.Entry();
entry.setKey("");
entry.setValue("");
args.getEntry().add(entry);
argBean.setArguments(args);
Holder<ArgumentsBean> holder= new Holder<ArgumentsBean>();
this is my code sample. Entry object can only add String variable.
So, it means we can only pass String variable from PAPI-WS. isn't it?
If i want to pass java Object, is it possible?
With Regards,
WP

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Hello There,
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