8231262: Suppress warnings on non-serializable instance fields in security libs serializable classes

Reviewed-by: mullan, chegar

src/java.base/share/classes/sun/security/x509/AlgorithmId.java

@@ -72,6 +72,7 @@ public class AlgorithmId implements Serializable, DerEncoder {
     private ObjectIdentifier algid;
 
     // The (parsed) parameters
+    @SuppressWarnings("serial") // Not statically typed as Serializable
     private AlgorithmParameters algParams;
     private boolean constructedFromDer = true;
 
@@ -80,6 +81,7 @@ public class AlgorithmId implements Serializable, DerEncoder {
      * DER-encoded form; subclasses can be made to automaticaly parse
      * them so there is fast access to these parameters.
      */
+    @SuppressWarnings("serial") // Not statically typed as Serializable
     protected DerValue          params;
 
 

src/java.base/share/classes/sun/security/x509/X509CertImpl.java

@@ -70,6 +70,7 @@ import sun.security.provider.X509Factory;
  * @author Hemma Prafullchandra
  * @see X509CertInfo
  */
+@SuppressWarnings("serial") // See writeReplace method in Certificate
 public class X509CertImpl extends X509Certificate implements DerEncoder {
 
     @java.io.Serial

src/java.base/share/classes/sun/security/x509/X509Key.java

@@ -84,7 +84,7 @@ public class X509Key implements PublicKey {
     private int unusedBits = 0;
 
     /* BitArray form of key */
-    private BitArray bitStringKey = null;
+    private transient BitArray bitStringKey = null;
 
     /* The encoding for the key. */
     protected byte[] encodedKey;