Problem with Java code processing?

Question

Java

Dear friends! Please help me with this code snippet. Complains about NoSuchAlgorithmException and UnsupportedEncodingException
private void func198i (){
String x0 = this.mc.session.sessionId;
x0 = getHash(x0+"protect");
this.mc.session.sessionId = x0;
}
public static String getHash(String str){
MessageDigest m;
try {
m = MessageDigest.getInstance("MD5");
m.reset();
try {
m.update(str.getBytes("utf-8"));
String s2 = new BigInteger(1,m.digest()).toString(16);
while(s2.length() < 32 ){
s2 = "0"+s2;
}
return s2;
} catch (UnsupportedEncodingException e) {
return e.toString();
}
} catch (NoSuchAlgorithmException e) {
return e.toString();
}
}

Answer 1

The Oracle doc describes this exception as follows:
This exception is thrown when a particular cryptographic algorithm is requested but is not available in the environment.
Accordingly, it looks like your system does not have this encryption algorithm.