CODEWITHSUNDEEP
javaenvironment-variablessystemdeprecated
Chet
Chet

Reputation: 71

System.getenv() method - deprecated or not?

Many places suggest that the System.getenv() JDK method has been deprecated. Many places suggest that it has been reinstated.

Is there a better API that provides the functionality to get environment settings in subsequent JDKs?

Or is System.getenv() still the preferred way to get environment variables / properties?

Upvotes: 7

Views: 1964

Answers (2)

simbo1905
simbo1905

Reputation: 6862

In the Java 8 API docs the method is not deprecated. It has references to getenv(String) but no other alternatives. Since getenv() returns a Map<String,String> from which you could just get(String) you may as well just call getenv(String) to get the value you are looking for else null if it is not defined. As those API docs are authoritative you can conclude that getEnv() is not deprecated in the current version Java nor is there a better recommended alternative other than getenv(String). Given that that API was introduced in Java 1.5 it is also highly backwards compatible.

Upvotes: 2

Mureinik
Mureinik

Reputation: 311843

System.getenv() and System.getenv(String) were introduced in the very early days of java, and then deprecated in Java 1.2(!).

Java 5 reinstated them (see bug 4199068), and since there's been no sign of these methods going anywhere or even being deprecated again for the last dozen years or so, I think it's safe to assume that they're here to stay, and use them as you need them.

Upvotes: 6

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