The author explores the implementation of Virtual Threads in a Java web crawler, discovering that while they significantly improve URL processing speed, they can also lead to memory issues like OutOfMemoryError due to the lack of built-in concurrency limits. To mitigate the problem, the author suggests using semaphores to control concurrency and implementing rate limiting to prevent overwhelming the system. Ultimately, the experience highlights the need for a new approach to resource management with Virtual Threads.
virtual-threads ✓
+ java
concurrency ✓
web-crawler ✓
memory-management ✓