Zing JVM can create Java Heap Dumps in the standard HPROF binary format. They are for instance triggered by the included jmap command. For analyzing the heap dumps the included jhat or any other Java profiling tool capable of reading the HPROF format can be used.
One reason for using Heap Dumps is analyzing the memory usage within your application. As Zing offers with ZVision a built-in production-time non-intrusive CPU and memory profiling tool, you might not need to create those GByte-large heap dumps any more. Read more on Monitoring Tools included in Zing.