//This Java code is the body of an audivolv.Func.run function,
//where obs[o] is a String of Java code for this firewall to look at,
//and throw an Exception if the code is not safe to use randomly.
//Most Java code written by Humans will not pass this firewall.
//This filter is only for evolved or downloaded Java code.

if(obs() < 1) throw new Exception("This firewall of Java code is not setup right. obs()="+obs());
if(!(obs[o] instanceof String)) throw new Exception("Not a String: "+obs[o]);
String code = (String) obs[o];
if(code.contains("import")) throw new Exception("import");
if(code.indexOf('"') != -1) throw new Exception("contains quote");

TODO FINISH THIS CODE

//No function calls except in the java.lang.Math or Math class
code.replaceAll( [^a-zA-Z0-9_]Math\s*.\s*[a-zA-Z0-9_]{1,100}\( , "" )

[^0-9]\.