Maybe want to provide a PR with a fix?

> Am 26.10.2016 um 21:25 schrieb ichaki5748 notifications@github.com:
> 
> netty 4.1.6
> 
> io.netty.handler.ssl.ReferenceCountedOpenSslEngine.OpenSslSession#initPeerCerts
> 
> final byte[] clientCert;
> ...
> int len = clientCert.length + 1; // <------ BUG: raw certificate byte array size is used
> peerCerts = new Certificate[len];
> x509PeerCerts = new X509Certificate[len];
> 
> But should probably be
> 
> int len = chain.length + 1; // <------ so we have first entry as client cert + chain.length
> 
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 Yes, sure, will try to do it this week 
 Thx

> Am 26.10.2016 um 23:54 schrieb ichaki5748 notifications@github.com:
> 
> Yes, sure, will try to do it this week
> 
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 Also `io.netty.handler.ssl.OpenSslJavaxX509Certificate.*`
could theoretically blow in concurrent usage because of lazy init in `io.netty.handler.ssl.OpenSslJavaxX509Certificate#unwrap` because 
`io.netty.handler.ssl.OpenSslJavaxX509Certificate#wrapped` is not `volatile` (certificate would not be fully initialized)? 
 @iainmcgin please open separate PRs for the separate issues and ping me once you are ready. I will review then
 You probably meant to reference @ichaki5748
 @iainmcgin ups yes... sorry I need more ☕️ 
 @normanmaurer Hi, please see https://github.com/netty/netty/pull/5967 https://github.com/netty/netty/pull/5966
 Fixed by https://github.com/netty/netty/pull/5967

OpenSslSession#initPeerCerts creates too long almost empty arrays
netty 4.1.6 

io.netty.handler.ssl.ReferenceCountedOpenSslEngine.OpenSslSession#initPeerCerts

```
final byte[] clientCert;
...
int len = clientCert.length + 1; // <------ BUG: raw certificate byte array size is used
peerCerts = new Certificate[len];
x509PeerCerts = new X509Certificate[len];

```

But should probably be

`int len = chain.length + 1; // <------ so we have first entry as client cert + chain.length`

handler/src/main/java/io/netty/handler/ssl/OpenSslJavaxX509Certificate.java handler/src/main/java/io/netty/handler/ssl/OpenSslX509Certificate.java
handler/src/main/java/io/netty/handler/ssl/OpenSslJavaxX509Certificate.java handler/src/main/java/io/netty/handler/ssl/OpenSslX509Certificate.java
diff --git a/handler/src/main/java/io/netty/handler/ssl/OpenSslJavaxX509Certificate.java b/handler/src/main/java/io/netty/handler/ssl/OpenSslJavaxX509Certificate.java
index da10dedf0c1..ad4447f34b7 100644
--- a/handler/src/main/java/io/netty/handler/ssl/OpenSslJavaxX509Certificate.java
+++ b/handler/src/main/java/io/netty/handler/ssl/OpenSslJavaxX509Certificate.java
@@ -30,7 +30,7 @@
 
 final class OpenSslJavaxX509Certificate extends X509Certificate {
     private final byte[] bytes;
-    private X509Certificate wrapped;
+    private volatile X509Certificate wrapped;
 
     public OpenSslJavaxX509Certificate(byte[] bytes) {
         this.bytes = bytes;
diff --git a/handler/src/main/java/io/netty/handler/ssl/OpenSslX509Certificate.java b/handler/src/main/java/io/netty/handler/ssl/OpenSslX509Certificate.java
index 77d0713613a..faaac551a41 100644
--- a/handler/src/main/java/io/netty/handler/ssl/OpenSslX509Certificate.java
+++ b/handler/src/main/java/io/netty/handler/ssl/OpenSslX509Certificate.java
@@ -34,7 +34,7 @@
 final class OpenSslX509Certificate extends X509Certificate {
 
     private final byte[] bytes;
-    private X509Certificate wrapped;
+    private volatile X509Certificate wrapped;
 
     public OpenSslX509Certificate(byte[] bytes) {
         this.bytes = bytes;
