static O[] massageArgsForVarArgsCall(Executable m, O[] args) { Class[] types = m.getParameterTypes(); int n = types.length-1, nArgs = l(args); if (nArgs < n) null; for i to n: if (!argumentCompatibleWithType(args[i], types[i])) null; Class varArgType = types[n].getComponentType(); for (int i = n; i < nArgs; i++) if (!argumentCompatibleWithType(args[i], varArgType)) null; O[] newArgs = new O[n+1]; arraycopy(args, 0, newArgs, 0, n); // TODO: optimize int nVarArgs = nArgs-n; O varArgs = Array.newInstance(varArgType, nVarArgs); for i to nVarArgs: Array.set(varArgs, i, args[n+i]); newArgs[n] = varArgs; ret newArgs; }