java -Xbootclasspath/a:D:\JavaApplication\bootstrap\build\libs\bootstrap.jar
注意：无法覆盖掉java内置类
-Xbootclasspath: <path> Sets the search path for bootstrap classes and resources.
-Xbootclasspath/p:<path> Prepends the specified resources to the front of the bootstrap class path.
-Xbootclasspath/a:<path> Appends the specified resources to the end of the bootstrap class path.
where <path> represents directories and compressed or Java™ archive files separated with colons (:). On Windows™ systems, use a semicolon (;) as a separator.
https://www.ibm.com/docs/en/sdk-java-technology/8?topic=options-xbootclasspath