Reflecting review feedback:

- using "conciseVersionString" intead of "shortVersionString"
- using <jarfile>.jar <jarfile>

src/java.base/share/classes/java/lang/System.java

@@ -2790,8 +2790,8 @@ public boolean allowSecurityManager() {
             }
 
             @Override
-            public String shortVersionString() {
-                return VersionProps.shortVersionString();
+            public String conciseVersionString() {
+                return VersionProps.conciseVersionString();
             }
 
         });

src/java.base/share/classes/java/lang/VersionProps.java.template

@@ -232,7 +232,7 @@ class VersionProps {
 
     }
 
-    static String shortVersionString() {
+    static String conciseVersionString() {
         return launcher_name + " " + java_version
                    + " " + java_version_date
                    + (isLTS ? " LTS" : "");

src/java.base/share/classes/jdk/internal/access/JavaLangAccess.java

@@ -639,5 +639,5 @@ StackWalker newStackWalkerInstance(Set<StackWalker.Option> options,
     /**
      * Return a short version string for this runtime.
      */
-    String shortVersionString();
+    String conciseVersionString();
 }

src/java.base/share/classes/sun/launcher/LauncherHelper.java

@@ -595,7 +595,7 @@ static void printXUsageMessage(boolean printToStderr) {
      */
     static void printConciseUsageMessage(boolean printToStderr) {
         initOutput(printToStderr);
-        ostream.println(SharedSecrets.getJavaLangAccess().shortVersionString());
+        ostream.println(SharedSecrets.getJavaLangAccess().conciseVersionString());
         ostream.println();
         ostream.println(getLocalizedMessage("java.launcher.opt.concise.header",
                 File.pathSeparator));

src/java.base/share/classes/sun/launcher/resources/launcher.properties

@@ -235,10 +235,10 @@ The following options are macOS specific:\n\
 # Translators please note do not translate the options themselves
 java.launcher.opt.concise.header  =   Usage: java [java options...] <application> [application arguments...]\n\n\
 \Where <application> is one of:\n\
-\  <mainclass>                to execute the main method of a compiled class\n\
-\  -jar <jarfile>.jar         to execute the main class of a JAR archive\n\
+\  <mainclass>                to execute the main method of a compiled main class\n\
+\  -jar <jarfile>             to execute the main class of a JAR archive\n\
 \  -m <module>[/<mainclass>]  to execute the main class of a module\n\
-\  <sourcefile>.java          to compile and execute a source-file program\n\n\
+\  <sourcefile>               to compile and execute a source-file program\n\n\
 \Where key java options include:\n\
 \  --class-path <class path>\n\
 \    where <class path> is a list of directories and JAR archives to search for class files, separated by "{0}"\n\