Troubleshooting Java memory problems can be tricky. In this article, we discuss the proper approach for locating them, and we take a look at a wide range of tools we can use to eradicate them.

Memory alignment does matter (as shown, for example, for primitive array types in Java Tip 130), but I think it is unprofitable to chase after such low-level details.

Why is it such a common solution for memory allocation errors? We’ll start with the perils of memory management in languages like C and C++, which do not use garbage collection.

Most commonly used JVM parameters Of all the JVM options listed above, the most commonly used are Xms and Xmx, which set the minimum and maximum heap size, respectively. The following example sets the ...