@NotNull
private FileAccessorCache.Handle<ZipFile> getZipFileHandle() throws IOException {
FileAccessorCache.Handle<ZipFile> handle = ourZipFileFileAccessorCache.get(this);
if (getFile() == getFileToUse()) { // files are canonicalized
// IDEA-148458, http://bugs.java.com/view_bug.do?bug_id=4425695, JVM crashes on use of opened
// ZipFile after it was updated
// Reopen file if the file has been changed
FileAttributes attributes = FileSystemUtil.getAttributes(getCanonicalPathToZip());
if (attributes == null) {
throw new FileNotFoundException(getCanonicalPathToZip());
}
if (attributes.lastModified == myFileStamp && attributes.length == myFileLength)
return handle;
// Note that zip_util.c#ZIP_Get_From_Cache will allow us to have duplicated ZipFile instances
// without a problem
removeZipHandlerFromCache();
handle.release();
handle = ourZipFileFileAccessorCache.get(this);
}
return handle;
}
// also used in Kotlin
public static void clearFileAccessorCache() {
ourZipFileFileAccessorCache.clear();
}
private void removeZipHandlerFromCache() {
ourZipFileFileAccessorCache.remove(this);
}