fixup: add default method for interface

Signed-off-by: Simon Schrottner <[email protected]>

Author: aepfli

src/main/java/dev/openfeature/sdk/HookContext.java

@@ -33,7 +33,6 @@ static <T> HookContext<T> from(
                 .providerMetadata(providerMetadata)
                 .ctx(ctx)
                 .defaultValue(defaultValue)
-                .hookData(null) // Explicitly set to null for backward compatibility
                 .build();
     }
 
@@ -56,5 +55,7 @@ static <T> HookContextWithoutDataBuilder<T> builder() {
 
     Metadata getProviderMetadata();
 
-    HookData getHookData();
+    default HookData getHookData() {
+        return null;
+    }
 }

src/main/java/dev/openfeature/sdk/HookContextWithoutData.java

@@ -24,10 +24,4 @@ class HookContextWithoutData<T> implements HookContext<T> {
 
     ClientMetadata clientMetadata;
     Metadata providerMetadata;
-
-    /**
-     * Hook data provides a way for hooks to maintain state across their execution stages.
-     * Each hook instance gets its own isolated data store.
-     */
-    HookData hookData;
 }