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

• I have many java versions installed, so a mixup is possible.
• Is there any way to verify the java version?

Answer 1

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