public DescriptorMap register(Class<?> cls, Descriptor descriptor) {
Util.throwIfNull(cls);
Util.throwIfNull(descriptor);
Util.throwIf(descriptor.isInitialized());
Util.throwIfNot(this.mIsInitializing);
if (this.mMap.containsKey(cls)) {
throw new UnsupportedOperationException();
} else if (this.mMap.containsValue(descriptor)) {
throw new UnsupportedOperationException();
} else {
this.mMap.put(cls, descriptor);
return this;
}
}
