Default parameter length validating ignores setMinSize(0) --------------------------------------------------------- Key: WFCORE-1590 URL: https://issues.jboss.org/browse/WFCORE-1590 Project: WildFly Core Issue Type: Bug Components: Domain Management Affects Versions: 3.0.0.Alpha1 Reporter: Darran Lofthouse Assignee: Brian Stansberry Labels: affects_elytron Fix For: 3.0.0.Alpha5 With the following attribute definition: - {code:java} static final SimpleAttributeDefinition REPLACEMENT = new SimpleAttributeDefinitionBuilder(ElytronDescriptionConstants.REPLACEMENT, ModelType.STRING, false) .setAllowExpression(true) .setMinSize(0) .setFlags(AttributeAccess.Flag.RESTART_RESOURCE_SERVICES) .build(); {code} The following error is reported if an empty string is used as a parameter: - {noformat} [standalone@localhost:9990 /] ./subsystem=elytron/regex-name-rewriter=strip-realm:add(pattern="@ELYTRON.ORG", replacement="", replace-all=true) { "outcome" => "failed", "failure-description" => "WFLYCTL0113: '' is an invalid value for parameter replacement. Values must have a minimum length of 1 characters", "rolled-back" => true } {noformat}