SYNOPSIS
URISyntaxException thrown when non alpha-numeric characters are used in the scope_id field along with the IPv6 literal

OPERATING SYSTEM(S)
All Platforms. The problem is platform independent.

FULL JDK VERSION(S)
Sun Java 5 and Sun Java 6 (All releases)

PROBLEM DESCRIPTION
Stack Trace:-

java.net.URISyntaxException: Illegal character in scope id at index 37: http://[fe80::c00:16fe:cebe:3214%eth1.12]:10/
at java.net.URI$Parser.fail(URI.java:2821)
at java.net.URI$Parser.checkChars(URI.java:2994)
at java.net.URI$Parser.parseServer(URI.java:3196)
at java.net.URI$Parser.parseAuthority(URI.java:3128)
at java.net.URI$Parser.parseHierarchical(URI.java:3070)
at java.net.URI$Parser.parse(URI.java:3026)
at java.net.URI.<init>(URI.java:675)
at URIsyntaxexception.main(URIsyntaxexception.java:8)

Expected behaviour:- No exception should be thrown

Observed behaviour:- URISyntaxException is thrown

Links to relevant specification/documentation

1. http://java.sun.com/javase/6/docs/api/java/net/URI.html

2. http://java.sun.com/javase/6/docs/api/java/net/Inet6Address.html#scoped

3. http://www.ietf.org/rfc/rfc2373.txt

4. http://www.ietf.org/rfc/rfc2732.txt

5. http://www.ietf.org/rfc/rfc2396.txt

New problem or regression
Existing problem with URI for all Java releases

TESTCASE

import java.net.*;

public class URIsyntaxexception {
public static void main(String[] arg) {


try {
new URI("http", null, "fe80::c00:16fe:cebe:3214%eth1.12", 10, "/", null, null);
} catch (URISyntaxException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}

}
}

REPRODUCTION INSTRUCTIONS
Compile and execute the above testcase to see the exception thrown
 
If the scope_id does not contain any non-alphanumeric characters the testcase runs fine. There are no issues.

SUGGESTED FIX
None

OTHER INFORMATION
The same scope_id with IPv6 literal to URL works just fine.

import java.net.*;

public class URLScopeID {
public static void main(String[] arg) {


try {
new URL("http", "fe80::c00:16fe:cebe:3214%eth1.12", 10, "RandomFile.txt" );
} catch (MalformedURLException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}

}
}