javax.net.ssl.SSLException: closing inbound before receiving peer's close_notify

This exception is usually thrown when the SSL/TLS handshake fails due to an unexpected closure of the inbound SSL/TLS connection before receiving a close_notify message from the peer. This can happen due to various reasons, such as network connectivity issues, server configuration errors, or protocol incompatibilities.

To resolve this issue, you can try the following steps:

1. Check the network connectivity between the client and server and ensure that there are no firewalls or proxies blocking the SSL/TLS traffic.

2. Verify that the server certificate is valid and trusted by the client. You can use tools like OpenSSL or Keytool to inspect the certificate chain.

3. Ensure that the SSL/TLS protocols and cipher suites used by the client and server are compatible. You can use tools like SSL Labs or Qualys SSL Server Test to check the server's SSL/TLS configuration.

4. If the problem persists, you can try enabling SSL/TLS debugging on the client or server side to get more detailed logs of the SSL/TLS handshake process. This can help you identify the root cause of the issue.

Overall, this exception indicates a problem with the SSL/TLS handshake process, and you need to investigate the underlying cause to resolve it.