Add additional source set to Gretty classpath - gradle

Question

My project contains a jar and a war module. The jar module contains to source sets main and generated.
My jar module gradle.build defines the source sets as listed below:
sourceSets {
generated
main {
compileClasspath += sourceSets.generated.output // adds the sourceSet to the compileClassPath
runtimeClasspath += sourceSets.generated.output // adds the sourceSet to the runtimeClasspath
}
}
and places the output of both source sets into the jar.
jar {
from sourceSets.generated.output
from sourceSets.main.output
}
Within my war module I'd like to use Gretty to run it within the build. The build.gradle file looks like this.
apply plugin: 'war'
apply from: "${rootDir}/gradle/gretty.gradle"
gretty {
// supported values:
// 'jetty7', 'jetty8', 'jetty9', 'tomcat7', 'tomcat8'
servletContainer = 'tomcat8'
httpPort = 8081
contextPath = '/wbc'
realm 'wbc-realm'
realmConfigFile 'tomcat-users.xml'
}
dependencies {
compile project(':interfaces')
compile "org.atmosphere:atmosphere-runtime:${atmosphereVersion}"
compile "org.springframework:spring-web:${springVersion}"
compile "javax.servlet:javax.servlet-api:${servletVersion}"
runtime "org.slf4j:slf4j-log4j12:${slf4jVersion}"
runtime "log4j:log4j:1.2.17"
}
Whenever I start Gretty using gradle --daemon clean appRun Gretty fails to start up Tomcat due to a ClassNotFoundException. That class is located in the generated source set of my jar module. How can I tell gretty to add it to the classpath?

Answer 1

Try adding the output directories of generated to gretty classPath:
gretty {
...
sourceSets.generated.output.each { classPath it }
}