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 ...
