I am having the NoSuchAlgorithmException problem

[pvkhai0710]

java.security.KeyStoreException: KeyStore instantiation failed
at java.security.KeyStore$Builder$2.getKeyStore(KeyStore.java:1971)
at eToken_21.main(eToken_21.java:28)
Caused by: java.security.KeyStoreException: PKCS11 not found
at java.security.KeyStore.getInstance(KeyStore.java:855)
at java.security.KeyStore$Builder$2$1.run(KeyStore.java:1927)
at java.security.KeyStore$Builder$2$1.run(KeyStore.java:1922)
at java.security.AccessController.doPrivileged(Native Method)
at java.security.KeyStore$Builder$2.getKeyStore(KeyStore.java:1968)
... 1 more
Caused by: java.security.NoSuchAlgorithmException: PKCS11 KeyStore not available
at sun.security.jca.GetInstance.getInstance(GetInstance.java:159)
at java.security.Security.getImpl(Security.java:653)
at java.security.KeyStore.getInstance(KeyStore.java:852)
... 5 more