What is new in Lucee 6? (Part 1)

how to use write CFML Code in Java , need more detail document
i want output 「hello wolrd」,but only error.

<cfscript>
    outputStream = GetPageContext().GetResponse().getOutputStream();
    void function echoHello(java.io.OutputStream outputStream) type="java" {
        outputStream.write("hello world".getBytes());
    }
    echoHello(outputStream)
</cfscript>

<cfscript>
    outputStream = GetPageContext().GetResponse().getOutputStream();
    void function echoHello(javax.servlet.ServletOutputStream outputStream) type="java" {
        outputStream.write("hello world".getBytes());
    }
    echoHello(outputStream)
</cfscript>