--- old/src/java.base/share/classes/sun/security/provider/certpath/PKIXCertPathValidator.java	2018-10-17 11:15:47.635249740 +0100
+++ new/src/java.base/share/classes/sun/security/provider/certpath/PKIXCertPathValidator.java	2018-10-17 11:15:47.199249740 +0100
@@ -29,7 +29,11 @@
 import java.security.InvalidAlgorithmParameterException;
 import java.security.cert.*;
 import java.util.*;
+import java.util.concurrent.atomic.AtomicLong;
+import java.util.stream.Collectors;
 
+import jdk.internal.event.X509ValidationEvent;
+import jdk.internal.event.EventHelper;
 import sun.security.provider.certpath.PKIX.ValidatorParams;
 import sun.security.validator.Validator;
 import sun.security.x509.X509CertImpl;
@@ -47,6 +51,7 @@
 public final class PKIXCertPathValidator extends CertPathValidatorSpi {
 
     private static final Debug debug = Debug.getInstance("certpath");
+    private static final AtomicLong validationEventNumber = new AtomicLong();
 
     /**
      * Default constructor.
@@ -234,7 +239,33 @@
                                              params.certificates(),
                                              certPathCheckers);
 
+        X509ValidationEvent xve = new X509ValidationEvent();
+        if(xve.shouldCommit() || EventHelper.isLoggingSecurity()) {
+            String c = params.certificates().stream()
+                    .map(x -> x.getSerialNumber().toString(16))
+                    .collect(Collectors.joining(", "));
+            String anchorID =
+                    anchor.getTrustedCert().getSerialNumber().toString(16);
+            if (xve.shouldCommit()) {
+                xve.certificateId = anchorID;
+                int certificatePos = 1; //anchor cert
+                xve.certificatePosition = certificatePos;
+                xve.validationId = validationEventNumber.incrementAndGet();
+                xve.commit();
+                // now, iterate through remaining
+                String[] s = c.split(",");
+                for (String id : s) {
+                    xve.certificateId = id.trim();
+                    xve.certificatePosition = ++certificatePos;
+                    xve.commit();
+                }
+            }
+            if (EventHelper.isLoggingSecurity()) {
+                EventHelper.logX509ValidationEvent(anchorID, c);
+            }
+        }
         return new PKIXCertPathValidatorResult(anchor, pc.getPolicyTree(),
                                                bc.getPublicKey());
     }
+
 }