Using alternative of Library loaded by Java Bootstrap class loader

I need use the both jars local_policy.jar and US_export_policy.jar wit开发者_运维问答h unlimited key size strength. The JRE comes bundled with versions of the jars, with limited key size strength. But I can't replace the original jars in the $JAVA_HOME/lib/security (insufficient rights), so i need them to override (at runtime?) somehow.

Any ideas?

It would appear that you can override the bootstrap classpath with the -Xbootclasspath JVM argument. See the 'Non-standard options' section of this page for more info.