--- a/src/jdk.javadoc/share/classes/jdk/javadoc/internal/tool/resources/javadoc.properties	Thu Feb 21 17:07:35 2019 -0800
+++ b/src/jdk.javadoc/share/classes/jdk/javadoc/internal/tool/resources/javadoc.properties	Fri Feb 22 11:10:55 2019 +0530
@@ -299,12 +299,9 @@
 Please file a bug against the javadoc tool via the Java bug reporting page\n\
 (http://bugreport.java.com) after checking the Bug Database (http://bugs.java.com)\n\
 for duplicates. Include error messages and the following diagnostic in your report. Thank you.
-main.legacy_api=The old Doclet and Taglet APIs in the packages\n\
-    com.sun.javadoc, com.sun.tools.doclets and their implementations\n\
-    are planned to be removed in a future JDK release. These\n\
-    components have been superseded by the new APIs in jdk.javadoc.doclet.\n\
-    Users are strongly recommended to migrate to the new APIs.\n
-
+main.not_a_doclet=\
+    Class {0} is not a valid doclet.\n\
+    Note: As of JDK 13, the com.sun.javadoc API is no longer supported.
 javadoc.class_not_found=Class {0} not found.
 javadoc.error=error
 javadoc.warning=warning