Ondrej Lukas created ELY-1078: --------------------------------- Summary: Elytron MatchRule.toString() method throws StringIndexOutOfBoundsException Key: ELY-1078 URL: https://issues.jboss.org/browse/ELY-1078 Project: WildFly Elytron Issue Type: Bug Reporter: Ondrej Lukas Assignee: Darran Lofthouse Priority: Critical In case when implementation of {{asString(StringBuilder b)}} for MatchRule does not change length of passed parameter (which is 0) then 'java.lang.StringIndexOutOfBoundsException: String index out of range: -1' is thrown for calling {{MatchRule.toString()}} due to calling {{StringBuilder.setLength(-1)}}. e.g. MatchRule {{ALL}} in implementation {{asString(StringBuilder b)}} just returns passed parameter, which results to mentioned exception. Thrown exception: {code} java.lang.StringIndexOutOfBoundsException: String index out of range: -1 at java.lang.AbstractStringBuilder.setLength(AbstractStringBuilder.java:180) at java.lang.StringBuilder.setLength(StringBuilder.java:76) at org.wildfly.security.auth.client.MatchRule.toString(MatchRule.java:581) ... {code} -- This message was sent by Atlassian JIRA (v7.2.3#72005)