Hello,
Please follow below steps and try again.
1. Kindly comment out the below line in <<testclass>>.java
//apiClient.setPrivateKeyPassword("YOUR PRIVATEKEY PASSWORD");
2. Kindly comment the below highlighted line in ApiClient.java
protected RestTemplate getRestTemplateForMutualAuth() {
try {
KeyStore keystore = KeyStore.getInstance(KeyStore.getDefaultType());
FileInputStream keystoreInputStream = new FileInputStream(keystorePath);
keystore.load(keystoreInputStream, keystorePassword.toCharArray());
keystoreInputStream.close();
SSLContext sslcontext = SSLContexts.custom().useProtocol("TLS")
.loadKeyMaterial(keystore, keystorePassword.toCharArray())
//.loadTrustMaterial(new File(keystorePath), keystorePassword.toCharArray())
.build();
Thanks,
Jai