determining java version used in gradle build

Question

Complementary to this question: tell-gradle-to-use-specific-java-version
How can I determine (verify) the java version actually used in gradle build?
After a successful ./gradlew build, I looked for javac, but it was just in a binary file:

$ grep -rn "javac"
Binary file .gradle/4.6/taskHistory/taskHistory.bin matches

score 1 · Answer 1 · answered Mar 29 '21 at 12:26

1

./gradlew --version will tell you which jdk version you are using.

answered Mar 29 '21 at 12:26

Kaj Hejer

2

This gives the JRE version that gradle is running under. It could be different from the javac version it will use to compile java files. – k314159 Mar 29 '21 at 12:53

Joman68 · Answer 2 · 2022-03-17T00:30:51.000

1

If you add --info to the build command it will tell you what java exe it is using for the compile:

./gradlew build --info

Then look for the string Starting process and you will see a line like:

Starting process 'Gradle Worker Daemon 10'. Working directory: C:\dev\.gradle\workers Command: C:\dev\.jdks\corretto-11.0.13\bin\java.exe ...'

edited Mar 17 '22 at 00:30

answered Mar 16 '22 at 03:30

Joman68

2 Answers2