set variable from task only when task is called - gradle

Question

I've defined a task called debug that should set the applicationDefaultJvmArgs of the application plugin so that spring-boot will halt and wait for the debugger.
I would like to use this task in combination with another task I have defined called local which sets a spring.profiles.active variable.
apply plugin: 'spring-boot'
apply plugin: 'application'
apply plugin: 'org.flywaydb.flyway'
dependencies {
compile group: "org.apache.camel", name: "camel-netty4-http", version: camelVersion
compile group: "org.apache.camel", name: "camel-spring-boot", version: camelVersion
compile group: "org.springframework.boot", name: "spring-boot-starter", version: "1.2.1.RELEASE"
}
flyway {
url = 'jdbc:mysql://localhost:3306/foobar'
user = 'foo'
password = 'bar'
}
task local {
tasks.withType(org.springframework.boot.gradle.run.BootRunTask) {
systemProperty('spring.profiles.active', 'local')
}
}
task debug << {
project.ext {
applicationDefaultJvmArgs = [
"-agentlib:jdwp=transport=dt_socket,server=y,suspend=y,address=5005"
]
}
}
When I call gradle using gradle local debug the debug the applicationDefaultJvmArgs are set but when I call gralde local they are also set ?
I've tried experimenting with
task debug << { ...
but that wouldn't make a difference.

Answer 1

Where is applicationDefaultJvmArgs defined? Can you provide the full code for your build script?
I believe that the next piece of code should do the job:
task debug << {
project.ext {
applicationDefaultJvmArgs = [
"-agentlib:jdwp=transport=dt_socket,server=y,suspend=y,address=5005"
]
}
}
The changes:
Assigning applicationDefaultJvmArgs as part of the debug task action (rather than a configuration)
Defining applicationDefaultJvmArgs as a project property