Java regex is working in my system but not in the server

Question

The regular expression is

String regex = "^[\\p{IsHangul}\\p{IsDigit}]+";

And whenever i do

text.matches(regex);

It works fine in my system but not in some of the system. I am not able to track the issue.

Thank you in advance.

Exception:

Exception in thread "main" java.util.regex.PatternSyntaxException: Unknown character property name {Hangul} near index 13
^[\p{IsHangul}\p{IsDigit}]+
             ^
       at java.util.regex.Pattern.error(Pattern.java:1713)
       at java.util.regex.Pattern.charPropertyNodeFor(Pattern.java:2437)
       at java.util.regex.Pattern.family(Pattern.java:2412)
       at java.util.regex.Pattern.range(Pattern.java:2335)
       at java.util.regex.Pattern.clazz(Pattern.java:2268)
       at java.util.regex.Pattern.sequence(Pattern.java:1818)
       at java.util.regex.Pattern.expr(Pattern.java:1752)
       at java.util.regex.Pattern.compile(Pattern.java:1460)
       at java.util.regex.Pattern.<init>(Pattern.java:1133)
       at java.util.regex.Pattern.compile(Pattern.java:823)
       at java.util.regex.Pattern.matches(Pattern.java:928)
       at java.lang.String.matches(String.java:2090)
       at com.mycompany.helper.ApplicationHelper.main(ApplicationHelper.java:200)

Sorry, i have escaped { and } because for test. and "other system" means "different JVM". — user3515080
– user3515080, Commented Apr 21, 2014 at 11:56
if i validate it from "Pattern and Matcher" also same problem. — user3515080
– user3515080, Commented Apr 21, 2014 at 11:58
We need to see how you are using this regex in your other system. Post some example which reproduces your problem. Also posting stacktrace of thrown exception could be helpful with figuring out the problem. — Pshemo
– Pshemo, Commented Apr 21, 2014 at 11:59

falsetru · Accepted Answer · 2014-04-21 12:04:27Z

2

According to Using Regular Expressions in Java:

Java 5 fixes some bugs and adds support for Unicode blocks. ...

Make sure you're using Java 5+ in the server.

answered Apr 21, 2014 at 12:04

falsetru

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user3515080 Over a year ago

any way thanks. but the "IsHangul" will only work from java 1.7. Thank You.

Pshemo · Accepted Answer · 2014-04-21 13:59:57Z

1

It seems that Java version you are using is not able to recognise Hangul as correct script character so you can try to create your own character class which will cover same range as Hongul from newer versions of Java.

From what I see in code in source code of Character.UnicodeScript on Java 8 Hangul refers to Unicode ranges

1100..11FF
302E..302F
3131..318F
3200..321F
3260..327E
A960..A97F
AC00..D7FB
FFA0..FFDF

so maybe try with such pattern

Pattern.compile("^["
        + "\u1100-\u11FF"
        + "\u302E-\u302F"
        + "\u3131-\u318F"
        + "\u3200-\u321F"
        + "\u3260-\u327E"
        + "\uA960-\uA97F"
        + "\uAC00-\uD7FB"
        + "\uFFA0-\uFFDF"
        + "\\p{IsDigit}]+");

answered Apr 21, 2014 at 13:59

Pshemo

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