}
public SSLContext createSSLContext(String provider, String protocol, String algorithm, String keyStore, String keyAlias, String trustStore) throws GeneralSecurityException {
KeystoreInstance keyInstance = getKeystore(keyStore);
if (keyInstance != null && keyInstance.isKeystoreLocked()) {
throw new KeystoreIsLocked("Keystore '" + keyStore + "' is locked");
}
if (keyInstance != null && keyInstance.isKeyLocked(keyAlias)) {
throw new KeystoreIsLocked("Key '" + keyAlias + "' in keystore '" + keyStore + "' is locked");
}
KeystoreInstance trustInstance = trustStore == null ? null : getKeystore(trustStore);
if (trustInstance != null && trustInstance.isKeystoreLocked()) {
throw new KeystoreIsLocked("Keystore '" + trustStore + "' is locked");
}
SSLContext context;
if (provider == null) {
context = SSLContext.getInstance(protocol);
} else {