2022/02/28

2022/02/20

2022/02/20



mac java version

久しぶりにJavaを触った。

many many jdks ...so how to mange so many jdks


  • show jdks version on your mac pc
    /usr/libexec/java_home -V

  • env is a good idea. 
    • python->pyenv
    • node->nodenv
    • ruby->rbenv
    • golang->gvm
    • java->jenv

  • install jenv
      brew install jenv
     export JENV_ROOT="$HOME/.jenv"
    echo 'eval "$(jenv init -)"' >> ~/.bash_profile
    source ~/.bash_profile
    jenv doctor

  • add jdk path to jenv
    jenv add /Library/Java/JavaVirtualMachines/jdk-12.0.2.jdk/Contents/Home

  • use some version
    jenv local 11     

2022/02/16

2022/02/16



Gradle The JavaExec.main property has been deprecated

deprecated gradle features were used in this build, making it incompatible with gradle 8.0.


 => add ↓ to gradle.properties

org.gradle.warning.mode=all


then 

he JavaExec.main property has been deprecated


change build.gradle


plugins {
    id "application"
}
apply plugin : "java"
application {
    mainClass = 'xxx.xxx'
}

then 

gradle run