Documentation Contents
Java Platform, Standard Edition Troubleshooting Guide
Contents Previous Next

# Description of Fatal Error Log

The error log contains information obtained at the time of the fatal error, including the following information, where possible:

- The operating exception or signal that provoked the fatal error

- Version and configuration information

- Details on the thread that provoked the fatal error and thread's stack trace

- The list of running threads and their state

- Summary information about the heap

- The list of native libraries loaded

- Command line arguments

- Environment variables

- Details about the operating system and CPU

Note: In some cases only a subset of this information is output to the error log. This can happen when a fatal error is of such severity that the error handler is unable to recover and report all details.

The error log is a text file consisting of the following sections:

- A header that provides a brief description of the crash. See Header Format.

- A section with thread information. See Thread Section Format.

- A section with process information. See Process Section Format.

- A section with system information. See System Section Format.

Note: The format of the fatal error log described here is based on Java SE 6. The format might be different with other releases.

Contents Previous Next

Copyright © 1993, 2026, Oracle and/or its affiliates. All rights reserved.
Contact Us