Question: I'm getting this error:

The service class "myclass" does not comply to one or more requirements of the JAX-RPC 1.1 specification, and may not deploy or function correctly.
 The method "mymethod" on the service class "myclass" uses a data type, "java.util.Map", that is not supported by the JAX-RPC specification. Instances of the type may not serialize or deserialize correctly. Loss of data or complete failure of the Web service may result.

So, I don't know how to use that type of data, as an input I have this:

```
Map<String, String>[] complex

```

I put it as an Array because Tibco (An integration tool) couldn't see the hashmap as various elements.

Thanks in advance!

Answer: 
As a side note, if you are writing a *new* webservice, you should consider using a moderately recent technology. jax-rpc is *very* outdated and uses soap encodings that are very painful to work with. consider using jax-ws (built into the jdk these days) or some other webservices implementation which uses document-literal encoding.
Web services are supposed to be interoperable across programming languages and java.util.Map is Java-specific. You should write a facade for that method that converts the contents of the Map into an array.