Does Java do anything to prevent files from changing out from under it?
martinrb at google.com
Wed May 14 20:43:06 UTC 2008
Having users write to jar files that are in use by a JDK is one of the
sources of JDK crashes. There's a long history of bugs open in the
Windows doesn't have this problem -- they have the opposite problem of locking
jar files in use so that they cannot be updated.
Fixing this would require hooking into the OS file modification
not easy; how to abort a class load in progress?
On Mon, May 12, 2008 at 9:47 PM, Peter B. Kessler <Peter.Kessler at sun.com> wrote:
> Does the Java platform do anything to prevent files from changing
> out from under it? E.g., once one has opened a jar file for class
> loading, could a malicious (or oblivious) user write to the jar
> file and disturb the VM? Or is that all relegated to "the operating
> system", file system permissions, etc.?
> ... peter
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