Add json-columns module: JSON columns in Hibernate 7.4.14 (@JdbcTypeCode(SqlTypes.JSON)), JSONB querying, GIN/expression indexes, dirty checking, Jackson 3 vs 2 on PostgreSQL 18.6 and MySQL 8.0.46

Co-Authored-By: Claude Sonnet 5.5 <[email protected]>
Claude-Session: https://claude.ai/code/session_017ic4b6Kg9RWSTJzyz6KP9X

json-columns/output/12-javap-deepcopy.txt

@@ -0,0 +1,24 @@
+# hibernate-core-7.4.14.Final.jar
+
+$ javap -p -c -cp hibernate-core-7.4.14.Final.jar org.hibernate.type.descriptor.java.spi.FormatMapperBasedJavaType   (deepCopy only)
+  public T deepCopy(T);
+    Code:
+         0: aload_1
+         1: ifnonnull     8
+         4: aconst_null
+         5: goto          17
+         8: aload_0
+         9: aload_0
+        10: aload_1
+        11: invokevirtual #82                 // Method toString:(Ljava/lang/Object;)Ljava/lang/String;
+        14: invokevirtual #85                 // Method fromString:(Ljava/lang/CharSequence;)Ljava/lang/Object;
+        17: areturn
+
+
+$ javap -p -c -cp hibernate-core-7.4.14.Final.jar org.hibernate.type.descriptor.java.AbstractJavaType   (areEqual only)
+  public boolean areEqual(T, T);
+    Code:
+         0: aload_1
+         1: aload_2
+         2: invokestatic  #51                 // Method java/util/Objects.equals:(Ljava/lang/Object;Ljava/lang/Object;)Z
+         5: ireturn