diff -r e4049522b074 -r 59ea39bb2809 src/hotspot/share/classfile/systemDictionary.cpp
--- a/src/hotspot/share/classfile/systemDictionary.cpp	Tue May 14 11:28:44 2019 -0400
+++ b/src/hotspot/share/classfile/systemDictionary.cpp	Tue May 14 11:29:18 2019 -0400
@@ -263,7 +263,7 @@
     ResourceMark rm(THREAD);
     // Ignore wrapping L and ;.
     TempNewSymbol name = SymbolTable::new_symbol(class_name->as_C_string() + 1,
-                                   class_name->utf8_length() - 2, CHECK_NULL);
+                                                 class_name->utf8_length() - 2);
     return resolve_instance_class_or_null(name, class_loader, protection_domain, THREAD);
   } else {
     return resolve_instance_class_or_null(class_name, class_loader, protection_domain, THREAD);
@@ -2356,7 +2356,7 @@
   SignatureStream sig_strm(signature, is_method);
   while (!sig_strm.is_done()) {
     if (sig_strm.is_object()) {
-      Symbol* sig = sig_strm.as_symbol(CHECK_NULL);
+      Symbol* sig = sig_strm.as_symbol();
       if (!add_loader_constraint(sig, loader1, loader2, THREAD)) {
         return sig;
       }
@@ -2626,7 +2626,7 @@
       mirror = ss.as_java_mirror(class_loader, protection_domain,
                                  SignatureStream::NCDFError, CHECK_(empty));
     }
-    assert(mirror != NULL, "%s", ss.as_symbol(THREAD)->as_C_string());
+    assert(mirror != NULL, "%s", ss.as_symbol()->as_C_string());
     if (ss.at_return_type())
       rt = Handle(THREAD, mirror);
     else