in serialization/src/main/java/com/twitter/serial/util/Pools.java [113:123]
public boolean release(@NotNull T instance) {
if (isInPool(instance)) {
throw new IllegalStateException("Already in the pool!");
}
if (mPoolSize < mPool.length) {
mPool[mPoolSize] = instance;
mPoolSize++;
return true;
}
return false;
}