JNDI InvalidNameException due to '+' character in DN

Question

Hello,
I am trying to add a sub-entry in my LDAP server using the following code:
samlPId = "J7Tbik5v+UFenexZ136hS/MUPa4=";
myAttrs.put("samlPId",samlPId);
myAttrs.put("samlIdProvider",samlIdProvider);
    try {
      InitialDirContext ct = new InitialDirContext(props);
      ct.createSubcontext("ldap://localhost:389/samlPId="+samlPId+","+"cn="+userName+","+"o=My Org,c=gb", myAttrs);
      System.out.println("** Entry added **");
  }catch(NamingException exception){
      System.out.println("**** Error ****");
      exception.printStackTrace();
......This causes the following error:
javax.naming.InvalidNameException: Invalid name: samlPId=J7Tbik5v+UFenexZ136hS/MUPa4=,cn=User1,o=University of Kent,c=gb; remaining name '"samlPId=J7Tbik5v+UFenexZ136hS/MUPa4=,cn=User1,o=University of Kent,c=gb"'
     at javax.naming.ldap.Rfc2253Parser.doParse(Rfc2253Parser.java:86)
     at javax.naming.ldap.Rfc2253Parser.parseDn(Rfc2253Parser.java:45)
     at javax.naming.ldap.LdapName.parse(LdapName.java:772)
     at javax.naming.ldap.LdapName.<init>(LdapName.java:108)
     at com.sun.jndi.ldap.LdapCtx.addRdnAttributes(LdapCtx.java:899)
     at com.sun.jndi.ldap.LdapCtx.c_createSubcontext(LdapCtx.java:780)
     at com.sun.jndi.toolkit.ctx.ComponentDirContext.p_createSubcontext(ComponentDirContext.java:319)
     at com.sun.jndi.toolkit.ctx.PartialCompositeDirContext.createSubcontext(PartialCompositeDirContext.java:248)
     at com.sun.jndi.toolkit.url.GenericURLDirContext.createSubcontext(GenericURLDirContext.java:210)
     at com.sun.jndi.url.ldap.ldapURLContext.createSubcontext(ldapURLContext.java:385)
     at javax.naming.directory.InitialDirContext.createSubcontext(InitialDirContext.java:178)
     at ldap.LDAPResolver.addSAMLInLDAP(LDAPResolver.java:268)If I remove the '+' character from the samlPId, it works just fine. Then I manually added the samlPId value with '+' character and it was successfully added too. So I am sure there is no problem at the LDAP side.
So is it the issue with the JNDI itself? Does it cause this exception if there is a '+' inside any DN? or does '+' character bear any special meaning in JNDI?
Any help will be highly appreciated. Thanks in advance.

Answer 1

Thank you very much for your reply. I also tried it previously and the result was just same. For your convenience, the code follows:
samlPId = "J7Tbik5v+UFenexZ136hS/MUPa4=";
myAttrs.put("samlPId",samlPId);
myAttrs.put("samlIdProvider",samlIdProvider);
String dn = "ldap://localhost:389/samlPId="+samlPId+","+"cn="+userName+","+"o=My Org,c=gb";
Name n = new CompositeName().add(dn);
    try {
      InitialDirContext ct = new InitialDirContext(props);
      ct.createSubcontext(n, myAttrs);
      System.out.println("** Entry added **");
  }catch(NamingException exception){
      System.out.println("**** Error ****");
      exception.printStackTrace();
......I even tried to escape the + character with the same exception.
Regards,
Ripul