--- a/src/java.net.http/share/classes/jdk/internal/net/http/common/SSLFlowDelegate.java	Fri Jun 29 19:56:40 2018 +0200
+++ b/src/java.net.http/share/classes/jdk/internal/net/http/common/SSLFlowDelegate.java	Tue Jul 03 11:02:57 2018 +0200
@@ -1029,6 +1029,10 @@
             case NEED_UNWRAP_AGAIN:
                 // do nothing else
                 // receiving-side data will trigger unwrap
+                if (caller == WRITER) {
+                    reader.schedule();
+                    return false;
+                }
                 break;
             default:
                 throw new InternalError("Unexpected handshake status:"