Matcher throwing IllegalStateException after matches
I'm having some strange issues with Matches, hoping someone could shed some light.
According to Java docs:
public boolean matches() ... If the match succeeds then more information can be obtained via the start, end, and group methods.
Some code:
private static Hashtable<String,String> splitAddress(String address){
Hashtable<String,String> result = new Hashtable<String,String>();
Matcher m = addrLong.matcher(address);
if (m.matches()) {
result.put("number", m.group(1));
This is where it throws:
java.lang.IllegalStateException: No match found
java.util.regex.Matcher.group(Matcher.java:485)
splitAddress(WebServiceHelper.java:699)
This alone is strange to me. Here's some more info if it helps:
private static final String numberRegex = "[0-9]*[a-zA-Z]?"; // 123a 123
private static final String compassRegex = "N|E|S|W|NORTH|EAST|SOUTH|WEST|NORD|EST|SUD|OUEST";
private static final String typeRegex = "STREET|ST|DRIVE|DR|AVENUE|AVE|AV|ROAD|RD|LOOP|LP|COURT|CT|CIRCLE|LANE|LN|BOULEVARD|BLVD|CRESCENT|CR";
addrLong = Pattern.compile("(" + numberRegex + ")s(.*)s(" + typeRegex + ")s?(" + compassRegex + ")?");
The input string I've been testing against is "12 CLARE ST E"
Thanks!
Edit: Oops, I pasted my addrShort declaration instead of my addrLong
Edit2: I know naming conventions are being broken. I didn't write that part, I swear.
UPDATE:
This executes successfully as a standalone function.
Any ideas why it would break in a tomcat environment?
I'll see if I can find anything that could be impacting this, but my addrLong is my only static variable and is not used anywhere else.
This is driving me crazy. I even tried:
Pattern p = Pattern.compile("(" + numberRegex + ")s(.*)");
Matcher m = p.matcher(address);
if (m.matches()) {
result.put("number", m.group(1));
in my server environment and it fails.
UPDATE 2
It even runs fine when it's alone in a servlet. I'm stumped. Any hints or ideas greatly appreciated.
UPDATE 3
Screw it, I'm just moving the function out into another class. Thanks for your help @mjg123, have a well-deserved check mark.
This is going to bother me forever...
I copied and pasted your code and it compiles and runs as expected, no exception thrown. Is there some other part of your code causing this?
My complete code is:
public class StackOverflow {
private static final String numberRegex = "[0-9]*[a-zA-Z]?"; // 123a 123
private static final String compassRegex = "N|E|S|W|NORTH|EAST|SOUTH|WEST|NORD|EST|SUD|OUEST";
private static final String typeRegex = "STREET|ST|DRIVE|DR|AVENUE|AVE|AV|ROAD|RD|LOOP|LP|COURT|CT|CIRCLE|LANE|LN|BOULEVARD|BLVD|CRESCENT|CR";
private static final Pattern addrLong = Pattern.compile("(" + numberRegex + ")s(.*)s(" + typeRegex + ")s?(" + compassRegex + ")?");
public static void main(final String[] args) {
final String address = "12 CLARE ST E";
final Hashtable<String, String> result = splitAddress(address);
System.out.println(result.get("number"));
}
private static Hashtable<String, String> splitAddress(final String address) {
final Hashtable<String, String> result = new Hashtable<String, String>();
final Matcher m = addrLong.matcher(address);
if (m.matches()) {
result.put("number", m.group(1));
}
return result;
}
}
Which runs fine and prints 12 as its output.