ADDITIONAL SYSTEM INFORMATION :
Microsoft Windows [Version 10.0.17763.195]

openjdk version "11.0.1" 2018-10-16
OpenJDK Runtime Environment 18.9 (build 11.0.1+13)
OpenJDK 64-Bit Server VM 18.9 (build 11.0.1+13, mixed mode)

A DESCRIPTION OF THE PROBLEM :
The Javadoc tool creates broken link to the Java 11 Javadoc hosted on the Oracle website.

This bug is present in version 11.0.1 but not version 12-ea+19. Please backport the fix to Java 11.

REGRESSION : Last worked in version 10.0.2

STEPS TO FOLLOW TO REPRODUCE THE PROBLEM :
Run "javadoc @options @packages" where:

options contains:
"-encoding
'UTF-8'
-public
-sourcepath
'src/main/java'
-author
-bottom
'Copyright © 2019. All rights reserved.'
-charset
'UTF-8'
-d
'target/site/apidocs'
-docencoding
'UTF-8'
-doctitle
'javadoc-link-to-jdk 1.0-SNAPSHOT API'
-link
'https://docs.oracle.com/en/java/javase/11/docs/api/'
-use
-version
"

packages contains:
"testcase"

src/main/java/test/Main.java contains:

package testcase;

public class Main
{
        public Number createNumber()
        {
                return 0;
        }
}

EXPECTED VERSUS ACTUAL BEHAVIOR :
EXPECTED -
Hyperlink to java.lang.Number should point to https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/lang/Number.html?is-external=true
ACTUAL -
Hyperlink to java.lang.Number points to https://docs.oracle.com/en/java/javase/11/docs/api/java/lang/Number.html?is-external=true

FREQUENCY : always