in src/main/java/org/apache/sling/commons/threads/impl/ThreadLocalCleaner.java [227:238]
private void saveOldThreadLocals() {
threadLocalsCopy = new ThreadLocalMapCopy(copy(threadLocalsField),
size(threadLocalsField, threadLocalMapSizeField),
size(threadLocalsField, threadLocalMapThresholdField));
threadLocalsCopy.debug("saved", "Thread locals");
inheritableThreadLocalsCopy = new ThreadLocalMapCopy(copy(inheritableThreadLocalsField),
size(inheritableThreadLocalsField, threadLocalMapSizeField),
size(inheritableThreadLocalsField, threadLocalMapThresholdField));
inheritableThreadLocalsCopy.debug("saved", "Inheritable thread locals");
}