Gradle runs plugin implicitly?

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1

I thought that I understand how gradle works, but here I got an issue that made me think I was wrong:

I have a GitHub project that I’ve migrated from Maven to Gradle. It used to have the simplest build.gradle so when I run gradle clean build everything was great. But I want to push this project’s artifacts to Nexus using OSSRH, so I had to add some things that are related to “uploadArtifacts” to my build.gradle. Since then, everytime that I try (or Travis CI tries) to clean build, I get an error

Unable to retrieve secret key from key ring file ‘/home/travis/build/OhadR/oAuth2-sample/auth-common/PathToYourKeyRingFile’ as it does not exist

which I assume related to the “signing” plugin ( I have a gradle.properties file with “signing.secretKeyRingFile=PathToYourKeyRingFile”. but why it tries to activate the plugin? I only asked for a simple build…

what makes gradle run the signing plugin?
In addition, I see that Gradle runs the javadoc. Why? I thought that in order to run javadoc, I have to write explicitly “gradle javadoc”…

thanks
ohad

my build.gradle file:

description = ‘parent POM for authentication projects’

subprojects {
apply plugin: ‘java’
apply plugin: ‘eclipse’
apply plugin: ‘maven’
apply plugin: ‘signing’

group = 'com.ohadr'
version = '2.0.0-SNAPSHOT'

eclipse {
	classpath {
	   downloadSources=true
	}
}

task javadocJar(type: Jar) {
	classifier = 'javadoc'
	from javadoc
}

task sourcesJar(type: Jar) {
	classifier = 'sources'
	from sourceSets.main.allSource
}

artifacts {
	archives javadocJar, sourcesJar
}

signing {
	sign configurations.archives
}

repositories {
	mavenLocal()
   	mavenCentral()
}

ext {
	ohadr_spring_security_version = "4.0.3.RELEASE"
	ohadr_spring_version = "4.2.4.RELEASE"
	ohadr_spring_security_oauth_version = "2.0.9.RELEASE"
}



jar {
    
    //in case we wanna add the sources (.java) files to the artifacts, along with the .class files:
    // from sourceSets.main.allSource
    

    manifest {
        attributes(
			'provider': 'gradle',
			'Product-Version': version,
            )
    }
}


uploadArchives {
  repositories {
	mavenDeployer {
	  beforeDeployment { MavenDeployment deployment -> signing.signPom(deployment) }

	  repository(url: "https://oss.sonatype.org/service/local/staging/deploy/maven2/") {
		authentication(userName: ossrhUsername, password: ossrhPassword)
	  }

	  snapshotRepository(url: "https://oss.sonatype.org/content/repositories/snapshots/") {
		authentication(userName: ossrhUsername, password: ossrhPassword)
	  }

	  pom.project {
		name 'Example Application'
		packaging 'jar'
		// optionally artifactId can be defined here 
		description 'A application used as an example on how to set up pushing  its components to the Central Repository.'
		url 'http://www.example.com/example-application'

		scm {
		  connection 'scm:svn:http://foo.googlecode.com/svn/trunk/'
		  developerConnection 'scm:svn:https://foo.googlecode.com/svn/trunk/'
		  url 'http://foo.googlecode.com/svn/trunk/'
		}

		licenses {
		  license {
			name 'The Apache License, Version 2.0'
			url 'http://www.apache.org/licenses/LICENSE-2.0.txt'
		  }
		}

		developers {
		  developer {
			id 'manfred'
			name 'Manfred Moser'
			email 'manfred@sonatype.com'
		  }
		}
	  }
	}
  }
}

}