diff -r 88502b1cf76f -r 7799a51dbe30 src/jdk.compiler/share/classes/com/sun/tools/javac/resources/compiler.properties
--- a/src/jdk.compiler/share/classes/com/sun/tools/javac/resources/compiler.properties	Mon Sep 09 11:43:16 2019 -0400
+++ b/src/jdk.compiler/share/classes/com/sun/tools/javac/resources/compiler.properties	Wed Nov 27 09:00:01 2019 +0100
@@ -546,6 +546,10 @@
     auto-closeable resource {0} may not be assigned
 
 # 0: symbol
+compiler.err.pattern.binding.may.not.be.assigned=\
+    pattern binding {0} may not be assigned
+
+# 0: symbol
 compiler.err.multicatch.parameter.may.not.be.assigned=\
     multi-catch parameter {0} may not be assigned
 
@@ -1416,6 +1420,10 @@
 compiler.misc.varargs.trustme.on.reifiable.varargs=\
     Varargs element type {0} is reifiable.
 
+# 0: type, 1: type
+compiler.err.instanceof.reifiable.not.safe=\
+    {0} cannot be safely cast to {1}
+
 # 0: symbol
 compiler.misc.varargs.trustme.on.non.varargs.meth=\
     Method {0} is not a varargs method.
@@ -2909,6 +2917,12 @@
 compiler.misc.feature.var.syntax.in.implicit.lambda=\
     var syntax in implicit lambdas
 
+compiler.misc.feature.pattern.matching.instanceof=\
+    pattern matching in instanceof
+
+compiler.misc.feature.reifiable.types.instanceof=\
+    reifiable types in instanceof
+
 compiler.warn.underscore.as.identifier=\
     as of release 9, ''_'' is a keyword, and may not be used as an identifier
 
@@ -3399,6 +3413,9 @@
 compiler.err.illegal.argument.for.option=\
     illegal argument for {0}: {1}
 
+compiler.err.match.binding.exists=\
+    illegal attempt to redefine an existing match binding
+
 compiler.err.switch.null.not.allowed=\
     null label in case is not allowed