受信任的证书条目不是受密码保护的Java

我有一个由其他第三方提供的.cer文件.我需要使用此.cer文件创建一个saml凭证.

I have a .cer file provided from some other party. I need to create a saml credential with this .cer file.

为此，我使用以下命令将.cer文件导入到jks文件. (密码与密码相同.它从提示符处要求接受证书.我给了y，然后它说证书已添加到密钥库中)

For this, I imported .cer file to jks file using following command. ( Password is same as password. It asked from prompt to accept certificate. I gave y then it said certificate is added to keystore )

keytool -importcert -file xyz.cer -keystore test.jks -alias"testsp"

然后，我使用这个jks文件创建了如下的凭证.

Then I used this jks file to create credential as below.

    private Credential getCredential() {
          KeyStore keystore = readKeystoreFromFile("C:\\Users\\WTC\\Downloads\\icicistage\\test.jks", "password");
          Map<String, String> passwordMap = new HashMap<String, String>();
          passwordMap.put("testsp", "password");
          KeyStoreCredentialResolver resolver = new KeyStoreCredentialResolver(keystore, passwordMap);

          Criteria criteria = new EntityIDCriteria("testsp");
          CriteriaSet criteriaSet = new CriteriaSet(criteria);

          Credential credential = null;
          try {
             credential = resolver.resolveSingle(criteriaSet);
          } catch (SecurityException e) {
              e.printStackTrace();
          }
         return credential;
    }

    private static KeyStore readKeystoreFromFile(String pathToKeyStore, String keyStorePassword) {
        try {
            KeyStore keystore = KeyStore.getInstance(KeyStore.getDefaultType());
            InputStream inputStream = new FileInputStream(pathToKeyStore);
            keystore.load(inputStream, keyStorePassword.toCharArray());
            inputStream.close();
            return keystore;
        } catch (Exception e) {
            throw new RuntimeException("Something went wrong reading keystore", e);
        }
    }

下面的行在try块中给了我以下错误.

The below line gives me the following error in try block.

credential = resolver.resolveSingle(criteriaSet);

credential = resolver.resolveSingle(criteriaSet);

java.lang.UnsupportedOperationException:受信任的证书条目不受密码保护

任何人都可以指导我解决此问题吗?

Can anyone please guide me to solve this issue ?