StringPrep encoding of same private use characters fails -------------------------------------------------------- Key: ELY-46 URL: https://issues.jboss.org/browse/ELY-46 Project: WildFly Elytron Issue Type: Bug Security Level: Public(Everyone can see) Components: Utils Reporter: Jan Kalina Assignee: Darran Lofthouse Priority: Minor {{StringPrep.encode()}} throws {{StringIndexOutOfBoundsException}} on encoding same private use characters, but should throw {{IllegalArgumentException}} and only when profile {{FORBID_PRIVATE_USE}} is used. {code} java.lang.StringIndexOutOfBoundsException: String index out of range: 2 at java.lang.String.charAt(String.java:658) at org.wildfly.sasl.util.StringPrep.encode(StringPrep.java:212) {code} Prepared test is here: https://github.com/honza889/wildfly-sasl/commit/444de996e3777109ca4806cf6... Advanced test allow test all private use characters (a lot of them cause same exception), but first two tests shows whole problem. (Advanced test will have a sense only when first two tests are successful.)