The MD5 and SHA-1 message digest algorithms have been disabled by default for HTTP Digest authentication. MD5 and SHA-1 are considered insecure and are deprecated generally. Accordingly, they have both been disabled by default for some usages of HTTP Digest authentication with java.net.HttpURLConnection. They can re-enabled on an opt-in basis by setting a new system property. More information can be found in [Networking Properties](https://docs.oracle.com/en/java/javase/19/docs/api/java.base/java/net/doc-files/net-properties.html).