--- a/src/jdk.compiler/share/classes/com/sun/tools/javac/resources/compiler.properties	Wed Sep 12 08:46:25 2018 -0700
+++ b/src/jdk.compiler/share/classes/com/sun/tools/javac/resources/compiler.properties	Wed Sep 12 14:19:36 2018 -0300
@@ -1232,6 +1232,9 @@
 compiler.err.unclosed.str.lit=\
     unclosed string literal
 
+compiler.err.unicode.backtick=\
+    attempt to use \\u0060 as a raw string literal delimiter
+
 # 0: string
 compiler.err.unsupported.encoding=\
     unsupported encoding: {0}
@@ -2826,6 +2829,9 @@
 compiler.misc.feature.switch.expressions=\
     switch expressions
 
+compiler.misc.feature.raw.string.literals=\
+    raw string literals
+
 compiler.warn.underscore.as.identifier=\
     as of release 9, ''_'' is a keyword, and may not be used as an identifier