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Daniel Schildt edited this page Jun 12, 2019 · 25 revisions

Choice of JDKs

Java development kits (JDK) and runtime environments (JRE) are available through the Scoop Java bucket.

To add the bucket, run:

scoop bucket add java

OpenJDK is the preferred JDK (because of its Open Source license), and can be installed with:

scoop install openjdk

The Scoop Java bucket contains five different OpenJDK builds:

Oracle’s Java is also available in the oraclejdk manifest.

Switching Javas

There are two solutions available today for switching java:

  1. scoop reset <java>[@<version>]
  2. Using find-java from extras

scoop reset works very well for the current session, and will also update the user's path.

Globally installed javas takes precedence over user installed javas, so running sudo scoop install -g oraclejdk-lts will install a java that is always default for new sessions.

Consider the following:

PS C:> scoop install oraclejdk-lts
Installing 'oraclejdk-lts' (8u172-b11) [64bit]

PS C:> scoop install oraclejdk10
Installing 'oraclejdk10' (10.0.1-10) [64bit]

PS C:> scoop install zulu6
Installing 'zulu6' (6.18.1.5) [64bit]

PS C:> scoop install openjdk10
Installing 'openjdk10' (10.0.1) [64bit]

PS C:> java -version
openjdk version "10.0.1" 2018-04-17
OpenJDK Runtime Environment (build 10.0.1+10)
OpenJDK 64-Bit Server VM (build 10.0.1+10, mixed mode)

PS C:> scoop reset zulu6
Resetting zulu6 (6.18.1.5).
Linking ~\scoop\apps\zulu6\current => ~\scoop\apps\zulu6\6.18.1.5

PS C:> java -version
openjdk version "1.6.0-99"
OpenJDK Runtime Environment (Zulu 6.18.1.5-win64) (build 1.6.0-99-b99)
OpenJDK 64-Bit Server VM (Zulu 6.18.1.5-win64) (build 23.77-b99, mixed mode)

PS C:> scoop reset oraclejdk-lts

PS C:> java -version
java version "1.8.0_172"
Java(TM) SE Runtime Environment (build 1.8.0_172-b11)
Java HotSpot(TM) 64-Bit Server VM (build 25.172-b11, mixed mode)
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