Exception in thread "main" java.lang.OutOfMemoryError: GC overhead limit exceeded

This error occurs when the Java Virtual Machine (JVM) spends too much time executing garbage collection (GC) and recovers very little memory in each cycle. This can happen when the heap size is too small for the amount of data being processed or when the application creates too many objects that are not properly disposed of.

To fix this error, you can try increasing the heap size by adding the -Xmx flag when running the JVM. For example, java -Xmx2g MyClass can set the maximum heap size to 2 gigabytes. You can also try optimizing your code to reduce memory usage, such as reusing objects instead of creating new ones, or explicitly calling the System.gc() method to trigger garbage collection at appropriate times.