The jmap command is used to generate a Java heap dump snapshot. In the JVM, you can use the jmap command to generate a heap memory dump file of a Java process for analyzing memory usage. Typically, the command jmap -dump:format=b,file= is used to generate the heap dump file, where the format parameter specifies the format of the dump file (either b for binary format or h for text format), the file parameter specifies the name of the dump file, and the processID is the ID of the Java process for which the heap dump file should be generated. The generated heap dump file can be analyzed using tools such as jhat, jvisualvm, etc.
