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Java 9: Building Robust Modular Applications
book

Java 9: Building Robust Modular Applications

by Dr. Edward Lavieri, Peter Verhas, Jason Lee
April 2018
Intermediate to advanced content levelIntermediate to advanced
910 pages
33h 21m
English
Packt Publishing
Content preview from Java 9: Building Robust Modular Applications

Unified JVM logging (JEP-158)

Creating a unified logging schema for the JVM was the central goal of JEP-158. Here is a high-level list of the goals of the JEP:

  • Create a JVM-wide set of command-line options for all logging operations
  • Use categorized tags for logging
  • Provide six levels of logging:
    • Error
    • Warning
    • Information
    • Debug
    • Trace
    • Develop
This is not an exhaustive list of goals. We will discuss JEP-158 in greater detail in Chapter 14, Command Line Flags.

The changes to the JVM, in the context of logging, can be categorized into:

  • Tags
  • Levels
  • Decorations
  • Output
  • Command-line options

Let's briefly look at these categories.

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Publisher Resources

ISBN: 9781788832823Supplemental ContentOtherPurchase LinkErrata Page