Z Abend Investigator uses a subsystem known as HFZS for services that can otherwise not be performed or which might cause incomplete analysis if not started.
Z Abend Investigator requires at least one PDS or PDSE data set to be allocated as a fault history file.
To capture the current Java™ state from a Java program, Z Abend Investigator can be invoked to create a history file fault entry, along with an associated MVS™ SVC dump.
Z Abend Investigator Java wrapper utility wraps a callable Java application in a try-catch block by using the FA Java class.
Z Abend Investigator provides a JVMTI (JVM Tool Interface) agent. The agent runs inside a Java™ Virtual Machine (JVM) and can inspect the state of the running Java application.
Some considerations if you are using the J9 VM.
The HFZUTIL batch utility can be used to perform history file management functions, such as listing and deleting history file fault entries.
HCL Z Abend Investigator is a host component and supports a client that supports various interfaces such as Microsoft Visual Studio Code IDEs.