Generate RSA Key with PKCS11

Question

I am trying to generate an RSA-2048 key with my HSM, using PKCS11 standard, It seems to be ok for the private key, but when I try to wrap my public key I get this error : iaik.pkcs.pkcs11.wrapper.PKCS11Exception: CKR_KEY_HANDLE_INVALID

Here is the generation function:

    public long [] Generate_RSA_key() {
             long [] key = null;
             try {
                 CK_MECHANISM mec = new CK_MECHANISM();
                 mec.mechanism = PKCS11Constants.CKM_RSA_PKCS_KEY_PAIR_GEN;
                 
                 RSAPublicKey  pub_template = new RSAPublicKey();
                 RSAPrivateKey prv_template = new RSAPrivateKey();
                 
                 RSA_template(pub_template, prv_template);
                 
                 CK_ATTRIBUTE[] attr_pub = iaik.pkcs.pkcs11.objects.Object.getSetAttributes(pub_template);
                 CK_ATTRIBUTE[] attr_prv = iaik.pkcs.pkcs11.objects.Object.getSetAttributes(prv_template);
                 
                 
                 key = cryptoki.C_GenerateKeyPair(ckiSession, mec, attr_pub, attr_prv, true);
             }catch(Exception e) {
                 e.printStackTrace();
             }
             return key;        
    }

     private void RSA_template(RSAPublicKey pub_template, RSAPrivateKey prv_template) {
         pub_template.getEncrypt()      .setBooleanValue(TRUE);
         pub_template.getVerify()       .setBooleanValue(TRUE);
         pub_template.getWrap()         .setBooleanValue(TRUE);
         pub_template.getModulusBits()  .setLongValue(2048L);
         
         prv_template.getDecrypt()      .setBooleanValue(TRUE);
         prv_template.getSign()         .setBooleanValue(TRUE);
         prv_template.getExtractable()  .setBooleanValue(TRUE);
         prv_template.getModulusBits()  .setLongValue(2048L);
         
     }

Thank you for your help.