--- a/src/jdk.compiler/share/classes/com/sun/tools/javac/resources/javac.properties	Wed Apr 18 13:37:39 2018 -0400
+++ b/src/jdk.compiler/share/classes/com/sun/tools/javac/resources/javac.properties	Wed Apr 18 16:02:53 2018 -0400
@@ -335,71 +335,6 @@
 javac.opt.default.module.for.created.files=\
     Fallback target module for files created by annotation processors, if none specified or inferred.
 
-## errors
-
-javac.err.empty.A.argument=\
-    -A requires an argument; use ''-Akey'' or ''-Akey=value''
-javac.err.invalid.arg=\
-    invalid argument: {0}
-javac.err.invalid.A.key=\
-     key in annotation processor option ''{0}'' is not a dot-separated sequence of identifiers
-javac.err.invalid.flag=\
-    invalid flag: {0}
-javac.err.profile.bootclasspath.conflict=\
-    profile and bootclasspath options cannot be used together
-javac.err.invalid.profile=\
-    invalid profile: {0}
-javac.err.invalid.target=\
-    invalid target release: {0}
-javac.err.option.not.allowed.with.target=\
-    option {0} not allowed with target {1}
-javac.err.option.too.many=\
-    option {0} can only be specified once
-javac.err.no.source.files=\
-    no source files
-javac.err.no.source.files.classes=\
-    no source files or class names
-javac.err.req.arg=\
-    {0} requires an argument
-javac.err.invalid.source=\
-    invalid source release: {0}
-javac.err.error.writing.file=\
-    error writing {0}; {1}
-javac.err.sourcepath.modulesourcepath.conflict=\
-    cannot specify both --source-path and --module-source-path
-javac.warn.source.target.conflict=\
-    source release {0} requires target release {1}
-javac.warn.target.default.source.conflict=\
-    target release {0} conflicts with default source release {1}
-javac.warn.profile.target.conflict=\
-    profile {0} is not valid for target release {1}
-javac.err.preview.not.latest=\
-    invalid source release {0} with --enable-preview\n\
-    (preview language features are only supported for release {1})
-javac.err.preview.without.source.or.release=\
-    --enable-preview must be used with either -source or --release
-javac.err.file.not.found=\
-    file not found: {0}
-javac.err.file.not.directory=\
-    not a directory: {0}
-javac.err.file.not.file=\
-    not a file: {0}
-javac.err.two.class.loaders.1=\
-    javac is split between multiple class loaders: check your configuration
-javac.err.two.class.loaders.2=\
-    javac is split between multiple class loaders:\n\
-    one class comes from file: {0}\n\
-    while javac comes from {1}
-javac.err.bad.value.for.option=\
-    bad value for {0} option: ''{1}''
-javac.err.no.value.for.option=\
-    no value for {0} option
-javac.err.repeated.value.for.patch.module=\
-    --patch-module specified more than once for {0}
-
-javac.err.unmatched.quote=\
-    unmatched quote in environment variable %s
-
 ## messages
 
 javac.msg.usage.header=\
@@ -437,9 +372,3 @@
 
 javac.version={0} {1}
 javac.fullVersion={0} full version "{1}"
-
-javac.err.release.bootclasspath.conflict=\
-    option {0} cannot be used together with --release
-
-javac.err.unsupported.release.version=\
-    release version {0} not supported