Can't load resources in a gradle project - jenkins

Question

I am using gradle 4.10.2 & IntelliJ IDEA Community Edition 2018.2
Note that this is a jenkins shared library project, hence, deviates from the standard gradle project structure.
The project shown in the image is an existing Gradle project. I am simply trying to load a properties file viz. mailTemplate.properties in a Groovy class EmailTemplate but the problem is that irrespective of where I keep it(like shown in the image), it's not loaded. I created a separate test gradle project and placed it in the default (src/main/resources) dir. and it works like a breeze.
I tried creating 'resources' at two places but in vain.
The build.gradle is:
buildscript {
repositories {
ivy {
url "$repositoryURL/$resolveRepository"
}
maven {
url "$repositoryURL/$resolveRepository"
}
}
dependencies {
classpath "tools.gradle.plugin:ReleasePlugin:1.10.0"
classpath "tools.gradle.plugin:qualityreport:v1.14.4"
}
}
group 'tools'
apply plugin: 'groovy'
apply plugin: 'tools.gradle.plugin.releaseplugin'
apply plugin: 'tools.gradle.plugin.qualityreport'
sourceSets {
main {
groovy {
srcDirs = ['src']
}
}
test {
groovy {
srcDirs = ['test/groovy']
}
}
}
repositories {
addAll(buildscript.repositories)
}
dependencies {
compile 'org.codehaus.groovy:groovy-all:2.4.15'
compile 'org.codehaus.groovy:groovy-json:2.4.9'
compile 'com.cloudbees:groovy-cps:1.1'
compile 'org.slf4j:slf4j-api:1.7.21'
testCompile 'junit:junit:4.12'
testCompile 'org.hamcrest:hamcrest-core:1.3'
testCompile 'net.bytebuddy:byte-buddy:1.6.4'
testCompile ('org.spockframework:spock-core:1.1-groovy-2.4') {
exclude group: 'org.codehaus.groovy'
}
testCompile gradleTestKit()
testCompile group: 'com.lesfurets', name: 'jenkins-pipeline-unit', version: '1.1'
testCompile group: 'org.mockito', name: 'mockito-core', version: '2.23.4'
testCompile group: 'tools.gradle.plugin', name: 'jenkins-shared-stages', version: 'v2.48.0'
// jenkins dependencies
testCompile 'org.jenkins-ci.plugins:script-security:1.34#jar'
}
task copySharedLibs(type: Copy, group: "PipelineTest") {
from '.'
into 'build/libs/jenkins-shared-pipelines#master'
include 'src/**'
include 'vars/**'
}
test.dependsOn(copySharedLibs)

Answer 1

Gradle groovy plugin expects resources to be at src/main/resources by default. In case the resources are located some other folder then it should be configured in the sourceSets. You can try the below assuming your resource file are also withing your src folder.
sourceSets {
main {
groovy {
srcDirs = ['src']
}
resources {
srcDirs = ['src']
}
}
test {
groovy {
srcDirs = ['test/groovy']
}
resources {
srcDirs = ['test/groovy']
}
}
}