try {
		 
    // The initial directory context
    LdapContext ctx = new InitialLdapContext(env, null);
 
    // Create a new attribute named hrSalaryLevel
    Attributes attrs = new BasicAttributes(true); 
    attrs.put("adminDescription", "Human Resources Salary Level");
    attrs.put("adminDisplayName", "hr-Salary-Level");
    attrs.put("attributeID", 
        "1.2.840.113556.1.4.7000.141"); // Must be registered in advance
    attrs.put("attributeSyntax", "2.5.5.9");
    attrs.put("oMSyntax", "2");
    attrs.put("isSingleValued", "TRUE");
    attrs.put("lDAPDisplayName", "hrSalaryLevel");
    attrs.put("cn","hr-Salary-Level");
    attrs.put("objectCategory", 
        "CN=Attribute-Schema,CN=Schema,CN=Configuration,DC=example,DC=com");
    attrs.put("objectClass", "attributeSchema");
    attrs.put("searchFlags", "0");
 
    // Attribute schema entry's dn
    String schema_dn = 
        "CN=hr-Salary-Level,CN=Schema,CN=Configuration,DC=example,DC=com"; 

    // create the schema entry
    ctx.createSubcontext(schema_dn, attrs);
			
    //Force the change to be taken effect 
    ModificationItem[] mods = new ModificationItem[1];
    mods = new ModificationItem[1];
    mods[0] = new ModificationItem(DirContext.REPLACE_ATTRIBUTE, 
                    new BasicAttribute("schemaupdatenow","1"));
    ctx.modifyAttributes("", mods);  // RootDSE
 
    System.out.println("Successfully modified schema");
    ctx.close();
		
}catch (NamingException e) {
    System.err.println("Problem modifying schema: " + e);
}

try {
     
    // The initial directory context
    LdapContext ctx = new InitialLdapContext(env, null);
 
    // Create a new attribute named hrSocialSecurityNumber
    Attributes attrs = new BasicAttributes(true);
    attrs.put("adminDescription", "Human Resources Social Security Number");
    attrs.put("adminDisplayName", "hr-Social-Security-Number");
    attrs.put("attributeID", 
        "1.2.840.113556.1.4.7000.142"); // Must be registered in advance
    attrs.put("attributeSyntax","2.5.5.12");
    attrs.put("oMSyntax","64");
    attrs.put("rangeLower","0");
    attrs.put("rangeUpper","128");
    attrs.put("isSingleValued","FALSE");
    attrs.put("lDAPDisplayName","hrSocialSecurityNumber");
    attrs.put("cn","hr-Social-Security-Number");
    attrs.put("objectCategory",
        "CN=Attribute-Schema,CN=Schema,CN=Configuration,DC=example,DC=com");
    attrs.put("objectClass","attributeSchema");
    attrs.put("searchFlags","0");
    
    // Attribute schema entry's dn
    String schema_dn = 
    	"CN=hr-Social-Security-Number,CN=Schema,CN=Configuration,DC=example,DC=com"; 

    // create the schema entry
    ctx.createSubcontext(schema_dn, attrs);
    
    //Force the change to be taken effect 
    ModificationItem[] mods = new ModificationItem[1];
    mods = new ModificationItem[1];
    mods[0] = new ModificationItem(DirContext.REPLACE_ATTRIBUTE, 
    		new BasicAttribute("schemaupdatenow","1"));
    ctx.modifyAttributes("", mods);  // RootDSE
 
    System.out.println("Successfully modified schema");
    ctx.close();
		
}catch (NamingException e) {
    System.err.println("Problem modifying schema: " + e);
}