How class loading is done by using -Xbootclasspath/p:path? [closed]

Question

I've seen -Xbootclasspath/p:path being used for loading class dynamically can you please elaborate and explain by providing example.

Yount

Start by reading the Oracle documentation; i.e. the manual page on the java command and the document it links to on how the classpath works. – Resemblance

@StephenC : I went through Oracle documentaion site but, it was quite unclear about the usage. Thats the reason of posting the question. – Yount

Answer 1

go to your command line and type java -X, to see the options available, -Xbootclasspath followed by path to comma seperated lists of jar files specified to prepend these classes before the standard jre classes. A use would be if you want to add patches affecting core runtime libraries.

Gelhar

Doesn't -Xbootclasspath replace the standard boot classpath in its entirety? Why do you say that they are prepended? – Polybasite

Looks like you can replace, append or prepend based on how you use it: -Xbootclasspath:bootclasspath files are used in place of; -Xbootclasspath/a:path files are appended to; -Xbootclasspath/p:path files are added in front of... docs.oracle.com/javase/7/docs/technotes/tools/windows/java.html – Embus

Note the "comma separated lists" statement is wrong. Multiple jars on Xbootclasspath are separated the same way as for standard classpath - semicolon in Windows, colon in Linux. The java -X provides hint with correct separator on each platform. – Bullpup