I'm trying to configure SamlPlugin with a groovy script.

Argument `binding` in constructor was introduced with version 1.0.5 and I can't initialize my SamlSecurityRealm in Groovy, seams conflicting with a reserved word.

Not works (In Jenkins Script console on Master), raise an "java.lang.ClassCastException: java.lang.String cannot be cast to groovy.lang.Binding" :

import hudson.model.*
import hudson.security.*
import jenkins.security.s2m.*
import hudson.tasks.Mailer
import org.jenkinsci.plugins.saml.*;def instance = jenkins.model.Jenkins.instance
def env = System.getenv()def idp_metadata_configuration = new IdpMetadataConfiguration(
{{ xml=new File("${env.JENKINS_HOME}/init.groovy.d/files/saml-idp-metadata.xml").text,}}
{{ url=null,}}
{{ period=null}}
)def securityRealm = new SamlSecurityRealm(
{{ idpMetadataConfiguration=idp_metadata_configuration,}}
{{ displayNameAttributeName="name",}}
{{ groupsAttributeName="member",}}
{{ maximumAuthenticationLifetime=Integer.valueOf(7200),}}
{{ usernameAttributeName="name",}}
{{ emailAttributeName="email",}}
{{ logoutUrl="",}}
{{ advancedConfiguration=null,}}
{{ encryptionData=null,}}
{{ usernameCaseConversion="none",}}
{{ binding="urn:oasis:names:tc:SAML:2.0:bindings:HTTP-Redirect"}}
)

To fix, I need to remove binding= in constructor