Fixed | Initialising the encodedPubKey with empty String in case userInfo is null (#7508)

Signed-off-by: kesrishubham2510 <shubhamkeshari90@gmail.com>
Co-authored-by: Sally MacFarlane <macfarla.github@gmail.com>

CHANGELOG.md

@@ -50,6 +50,7 @@
 - Correct entrypoint in Docker evmtool [#7430](https://github.com/hyperledger/besu/pull/7430)
 - Fix protocol schedule check for devnets [#7429](https://github.com/hyperledger/besu/pull/7429)
 - Fix behaviour when starting in a pre-merge network [#7431](https://github.com/hyperledger/besu/pull/7431)
+- Fix Null pointer from DNS daemon [#7505](https://github.com/hyperledger/besu/issues/7505)
 
 ## 24.7.1
 

ethereum/p2p/src/main/java/org/hyperledger/besu/ethereum/p2p/discovery/dns/DNSEntry.java

@@ -243,7 +243,7 @@ public interface DNSEntry {
     public ENRTreeLink(final String enrTreeLink) {
       final URI uri = URI.create(enrTreeLink);
       this.domainName = uri.getHost();
-      this.encodedPubKey = uri.getUserInfo();
+      this.encodedPubKey = uri.getUserInfo() == null ? "" : uri.getUserInfo();
       this.pubKey = fromBase32(encodedPubKey);
     }