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Jinwoo Hwang

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Latest Articles from Jinwoo Hwang
When we encounter a java.lang.OutOfMemoryError, we often find that Java heap dumps, along with other artifacts, are generated by the Java Virtual Machine. If you feel like jumping right into a Java heap dump when you get a java.lang.OutOfMemoryError, don’t worry, it’s a normal thought....
A couple of patterns that could cause Java heap exhaustion were identified from years of research at IBM. One interesting scenarios was observed when Java applications generate excessive amount of finalizable objects whose classes have non-trivial Java finalizers. A Java finalizer perf...
We can visualize resource starvation using an elaborate rendition of the Dining Philosophers Problem. This classic metaphor of resource allocation among processes was first introduced in 1971 by Edsger Dijkstra in his paper “Hierarchical Ordering of Sequential Processes.” It’s been a m...