Serialization Support of Core Components

Issue gh-16276

core/src/main/java/org/springframework/security/core/ComparableVersion.java

@@ -405,6 +405,7 @@ class ComparableVersion implements Comparable<ComparableVersion> {
 	 * Represents a version list item. This class is used both for the global item list
 	 * and for sub-lists (which start with '-(number)' in the version specification).
 	 */
+	@SuppressWarnings("serial")
 	private static class ListItem extends ArrayList<Item> implements Item {
 
 		@Override

core/src/main/java/org/springframework/security/core/context/TransientSecurityContext.java

@@ -16,6 +16,8 @@
 
 package org.springframework.security.core.context;
 
+import java.io.Serial;
+
 import org.springframework.security.core.Authentication;
 import org.springframework.security.core.Transient;
 
@@ -30,6 +32,9 @@ import org.springframework.security.core.Transient;
 @Transient
 public class TransientSecurityContext extends SecurityContextImpl {
 
+	@Serial
+	private static final long serialVersionUID = -7925492364422193347L;
+
 	public TransientSecurityContext() {
 	}