What is Java Shared Class List File: -XX:SharedClassListFile?

Usage:

• -XX:SharedClassListFile=<filename>

Example:

java -Xshare:dump -XX:SharedClassListFile=myapp.classlist \ -XX:SharedArchiveFile=myapp_static.jsa -jar myapp.jar

Runs the application in myapp.jar with the class list in myapp.classlist to produce a shared class data archive at myapp_static.jsa.

Description:

The -XX:SharedClassListFile option is used to process a class list generated by -XX:DumpLoadedClassList and, together with the -Xshare:dump and -XX:SharedArchiveFile arguments, generates a shared class data archive for the application classes. This can substantially improve the startup time of the application. See the description of the -Xshare option for details on Class Data Sharing.

Default Value:

-XX:SharedClassListFile has no default, and must be specified when generating a shared class data archive from a class list.

Errors:

If the file specified with -XX:SharedClassListFile does not exist or otherwise cannot be read, then the JVM exits with an error message:

Allocated shared space: 3221225472 bytes at 0x0000000800000000

Loading classes to share ...

Error occurred during initialization of VM

Loading classlist failed: No such file or directory

Arguments Related to -XX:SharedClassListFile:

TODO: link to -Xshare TODO: link to -XX:DumpLoadedClassList TODO: link to -XX:SharedArchiveFile TODO: link to -XX:ArchiveClassesAtExit

Related Posts:

• Java Application Class Data Sharing.

NOTE:

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