--- jdk9/jdk/src/java.base/share/conf/security/java.security
+++ jdk9/jdk/src/java.base/share/conf/security/java.security
@@ -67,7 +67,6 @@
 #endif
 security.provider.tbd=SUN
 security.provider.tbd=SunRsaSign
-security.provider.tbd=SunEC
 security.provider.tbd=SunJSSE
 security.provider.tbd=SunJCE
 security.provider.tbd=SunJGSS