this.paras[0] = par1;
System.arraycopy(pars, 0, this.paras, 1, pars.length);
AClass strBlderCls = AClassFactory.getProductClass(StringBuilder.class);
MethodInvoker mi = block.invoke(block.invokeConstructor(strBlderCls), "append", par1);
for(Parameterized par : pars){
mi = block.invoke(mi, "append", par);
}
invoker = block.invoke(mi, "toString");
}