Ensure OpenSslEngine will not try to call SSL_free multiple times even when constructor throws. (#8399)

Motivation:

When the constructor of OpenSslEngine threw we could end up to self call SSL_free by ourself and then have the finalizer do the same which may lead to double free-ing and so SIGSEV.

Modifications:

Just call shutdown() when the constructor throws and so ensure SSL_free is guarded correctly in the finalizer.

Result:

No more SIGSEV possible.

handler/src/main/java/io/netty/handler/ssl/ReferenceCountedOpenSslEngine.java

@@ -363,7 +363,11 @@ public class ReferenceCountedOpenSslEngine extends SSLEngine implements Referenc
                 // setMode may impact the overhead.
                 calculateMaxWrapOverhead();
             } catch (Throwable cause) {
-                SSL.freeSSL(ssl);
+                // Call shutdown so we are sure we correctly release all native memory and also guard against the
+                // case when shutdown() will be called by the finalizer again. If we would call SSL.free(...) directly
+                // the finalizer may end up calling it again as we would miss to update the DESTROYED_UPDATER.
+                shutdown();
+
                 PlatformDependent.throwException(cause);
             }
         }