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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

JVM command-line flag argument validation [JEP 245]

In this chapter, you have gained exposure to much of the command-line flag usage with the Java 9 platform. Java Enhancement Proposal 245, titled Validate JVM Command-Line Flag Arguments, was created to ensure all JVM command-line flags with arguments are validated. The primary goals of this effort were:

  • Avoid JVM crashes
  • Provide error messages to inform of invalid flag arguments

As you can see from the following graphic, there was no attempt to auto-correct the flag argument errors; rather, just to identify the errors and prevent the JVM from crashing:

A sample error message is provided ...

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Publisher Resources

ISBN: 9781788832823Supplemental ContentOtherPurchase LinkErrata Page