--- a/src/jdk.compiler/share/classes/com/sun/tools/javac/resources/compiler.properties	Thu Jul 12 12:06:22 2018 -0700
+++ b/src/jdk.compiler/share/classes/com/sun/tools/javac/resources/compiler.properties	Thu Jul 12 14:13:15 2018 -0700
@@ -1135,9 +1135,6 @@
 compiler.err.throws.not.allowed.in.intf.annotation=\
     throws clause not allowed in @interface members
 
-compiler.err.try.without.catch.or.finally=\
-    ''try'' without ''catch'' or ''finally''
-
 compiler.err.try.without.catch.finally.or.resource.decls=\
     ''try'' without ''catch'', ''finally'' or resource declarations
 
@@ -1720,11 +1717,6 @@
     cast to {0} for a varargs call\n\
     cast to {1} for a non-varargs call and to suppress this warning
 
-# 0: target, 1: target
-compiler.err.bad.target.sigpoly.call=\
-    polymorphic signature calls are not supported in -target {0}\n\
-    (use -target {1} or higher to enable polymorphic signature calls)
-
 # 0: list of type
 compiler.warn.unreachable.catch=\
     unreachable catch clause\n\
@@ -2740,15 +2732,6 @@
 compiler.misc.feature.diamond.and.anon.class=\
     ''<>'' with anonymous inner classes
 
-compiler.misc.feature.binary.lit=\
-    binary literals
-
-compiler.misc.feature.underscore.lit=\
-    underscores in literals
-
-compiler.misc.feature.try.with.resources=\
-    try-with-resources
-
 compiler.misc.feature.var.in.try.with.resources=\
     variables in try-with-resources
 
@@ -2764,12 +2747,6 @@
 compiler.misc.feature.diamond=\
     diamond operator
 
-compiler.misc.feature.multicatch=\
-    multi-catch statements
-
-compiler.misc.feature.string.switch=\
-    strings in switch
-
 compiler.misc.feature.lambda=\
     lambda expressions