public <T> void setPersistentMapProperty(String prop, Map<String, T> value) {
boolean dirty = false;
synchronized (persistent_properties) {
Map<String, T> existing = getPersistentMapProperty(prop, null);
if (!BEncoder.mapsAreIdentical(value, existing)) {
try {
if (value == null) {
persistent_properties.remove(prop);
} else {
persistent_properties.put(prop, value);
}
dirty = true;
} catch (Throwable e) {
Debug.printStackTrace(e);
}
}
}
if (dirty) {
setDirty();
}
}
