CODEWITHSUNDEEP
javagradle
lapots
lapots

Reputation: 13395

get jvm argument in the app when running gradle task

I am using gradle application plugin to run my main class. When I do like this

gradle run -Dparameter=5

And try to get that argument parameter in my main function

public static void main(String[] args) {
    System.getProperty("parameter")
}

It returns null.

How to pass jvm argument properly?

Upvotes: 0

Views: 1820

Answers (2)

nail fei
nail fei

Reputation: 2319

If your application requires a specific set of JVM settings or system properties, you can configure the applicationDefaultJvmArgs property. These JVM arguments are applied to the run task and also considered in the generated start scripts of your distribution.

Chapter 52. The Application Plugin

e.g. you can add

applicationDefaultJvmArgs=["-Dparameter=5"]

in build.gradle

Upvotes: 2

Klitos Kyriacou
Klitos Kyriacou

Reputation: 11621

The gradle -D option sets the system property of the Gradle process itself and not the system property of the task you want to run.

You can use the -P (project property) option instead, but then you will need to get the property value in your gradle script and set the system property accrodingly:

if (project.hasProperty('myPropertyNameHere'))
    systemProperty('myPropertyNameHere', myPropertyNameHere)

Upvotes: 3

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