Gradle 1.12-rc-1 Script Plugin classpath issues

Old Forum Archive
1

Trying to upgrade to 1.12-rc-1 and I encounter an error where the classpath for a plugin script appears to be wrong:

project/
|
+ -- buildSrc/
|
|
|
\-- build.gradle
|
+ -- build.gradle
|
+ -- grails-app.gradle
|
+ -- grails.gradle

So the scenarios is this: buildSrc/build.gradle contains

repositories {
  jcenter()
}
dependencies {
  compile 'org.grails:grails-gradle-plugin:2.0.1'
}

Then build.gradle is:

apply from: file('grails-app.gradle')

And grails.gradle is:

apply from: file('grails.gradle')

And finally ‘grails-base.gradle’ is:

import org.grails.gradle.pluigin.tasks.GrailsTask
  apply plugin: 'grails'
version = '1.0'
grails {
  grailsVersion = '2.3.5'
  groovyVersion = '2.1.9'
}
repositories {
  grails.central()
}
dependencies {
  bootstrap 'org.grails.plugins:tomcat:7.0.50'
  compile 'org.grails.plugins:scaffolding:2.0.0'
}
  task testFoo(type: GrailsTask) {
  command 'test-app'
}

When trying to run Gradle get the following error:

➜
gg-test
gradle tasks -s
:buildSrc:compileJava UP-TO-DATE
:buildSrc:compileGroovy UP-TO-DATE
:buildSrc:processResources UP-TO-DATE
:buildSrc:classes UP-TO-DATE
:buildSrc:jar UP-TO-DATE
:buildSrc:assemble UP-TO-DATE
:buildSrc:compileTestJava UP-TO-DATE
:buildSrc:compileTestGroovy UP-TO-DATE
:buildSrc:processTestResources UP-TO-DATE
:buildSrc:testClasses UP-TO-DATE
:buildSrc:test UP-TO-DATE
:buildSrc:check UP-TO-DATE
:buildSrc:build UP-TO-DATE
  FAILURE: Build failed with an exception.
  * Where:
Script '/Users/jengelman/workspace/personal/gg-test/grails.gradle'
  * What went wrong:
A problem occurred evaluating script.
> org.grails.gradle.plugin.tasks.GrailsTask
  * Try:
Run with --info or --debug option to get more log output.
  * Exception is:
org.gradle.api.GradleScriptException: A problem occurred evaluating script.
 at org.gradle.groovy.scripts.internal.DefaultScriptRunnerFactory$ScriptRunnerImpl.run(DefaultScriptRunnerFactory.java:54)
 at org.gradle.configuration.DefaultScriptPluginFactory$ScriptPluginImpl.apply(DefaultScriptPluginFactory.java:152)
 at org.gradle.api.internal.plugins.DefaultObjectConfigurationAction.applyScript(DefaultObjectConfigurationAction.java:97)
 at org.gradle.api.internal.plugins.DefaultObjectConfigurationAction.access$000(DefaultObjectConfigurationAction.java:36)
 at org.gradle.api.internal.plugins.DefaultObjectConfigurationAction$1.run(DefaultObjectConfigurationAction.java:67)
 at org.gradle.api.internal.plugins.DefaultObjectConfigurationAction.execute(DefaultObjectConfigurationAction.java:129)
 at org.gradle.groovy.scripts.DefaultScript.apply(DefaultScript.java:99)
 at org.gradle.api.Script$apply.callCurrent(Unknown Source)
 at grails_app_67id415ckdhs09fpd03ja43j2q.run(/Users/jengelman/workspace/personal/gg-test/grails-app.gradle:1)
 at org.gradle.groovy.scripts.internal.DefaultScriptRunnerFactory$ScriptRunnerImpl.run(DefaultScriptRunnerFactory.java:52)
 at org.gradle.configuration.DefaultScriptPluginFactory$ScriptPluginImpl.apply(DefaultScriptPluginFactory.java:152)
 at org.gradle.api.internal.plugins.DefaultObjectConfigurationAction.applyScript(DefaultObjectConfigurationAction.java:97)
 at org.gradle.api.internal.plugins.DefaultObjectConfigurationAction.access$000(DefaultObjectConfigurationAction.java:36)
 at org.gradle.api.internal.plugins.DefaultObjectConfigurationAction$1.run(DefaultObjectConfigurationAction.java:67)
 at org.gradle.api.internal.plugins.DefaultObjectConfigurationAction.execute(DefaultObjectConfigurationAction.java:129)
 at org.gradle.api.internal.project.AbstractPluginAware.apply(AbstractPluginAware.java:41)
 at org.gradle.api.Project$apply.call(Unknown Source)
 at org.gradle.api.internal.project.ProjectScript.apply(ProjectScript.groovy:34)
 at org.gradle.api.Script$apply.callCurrent(Unknown Source)
 at build_2e86hqli4nat0hh88fge0ivsta.run(/Users/jengelman/workspace/personal/gg-test/build.gradle:1)
 at org.gradle.groovy.scripts.internal.DefaultScriptRunnerFactory$ScriptRunnerImpl.run(DefaultScriptRunnerFactory.java:52)
 at org.gradle.configuration.DefaultScriptPluginFactory$ScriptPluginImpl.apply(DefaultScriptPluginFactory.java:152)
 at org.gradle.configuration.project.BuildScriptProcessor.execute(BuildScriptProcessor.java:40)
 at org.gradle.configuration.project.BuildScriptProcessor.execute(BuildScriptProcessor.java:26)
 at org.gradle.configuration.project.ConfigureActionsProjectEvaluator.evaluate(ConfigureActionsProjectEvaluator.java:34)
 at org.gradle.configuration.project.LifecycleProjectEvaluator.evaluate(LifecycleProjectEvaluator.java:55)
 at org.gradle.api.internal.project.AbstractProject.evaluate(AbstractProject.java:493)
 at org.gradle.api.internal.project.AbstractProject.evaluate(AbstractProject.java:80)
 at org.gradle.configuration.DefaultBuildConfigurer.configure(DefaultBuildConfigurer.java:31)
 at org.gradle.initialization.DefaultGradleLauncher.doBuildStages(DefaultGradleLauncher.java:142)
 at org.gradle.initialization.DefaultGradleLauncher.doBuild(DefaultGradleLauncher.java:113)
 at org.gradle.initialization.DefaultGradleLauncher.run(DefaultGradleLauncher.java:81)
 at org.gradle.launcher.exec.InProcessBuildActionExecuter$DefaultBuildController.run(InProcessBuildActionExecuter.java:64)
 at org.gradle.launcher.cli.ExecuteBuildAction.run(ExecuteBuildAction.java:33)
 at org.gradle.launcher.cli.ExecuteBuildAction.run(ExecuteBuildAction.java:24)
 at org.gradle.launcher.exec.InProcessBuildActionExecuter.execute(InProcessBuildActionExecuter.java:35)
 at org.gradle.launcher.daemon.server.exec.ExecuteBuild.doBuild(ExecuteBuild.java:45)
 at org.gradle.launcher.daemon.server.exec.BuildCommandOnly.execute(BuildCommandOnly.java:34)
 at org.gradle.launcher.daemon.server.exec.DaemonCommandExecution.proceed(DaemonCommandExecution.java:125)
 at org.gradle.launcher.daemon.server.exec.WatchForDisconnection.execute(WatchForDisconnection.java:42)
 at org.gradle.launcher.daemon.server.exec.DaemonCommandExecution.proceed(DaemonCommandExecution.java:125)
 at org.gradle.launcher.daemon.server.exec.ResetDeprecationLogger.execute(ResetDeprecationLogger.java:24)
 at org.gradle.launcher.daemon.server.exec.DaemonCommandExecution.proceed(DaemonCommandExecution.java:125)
 at org.gradle.launcher.daemon.server.exec.StartStopIfBuildAndStop.execute(StartStopIfBuildAndStop.java:33)
 at org.gradle.launcher.daemon.server.exec.DaemonCommandExecution.proceed(DaemonCommandExecution.java:125)
 at org.gradle.launcher.daemon.server.exec.ReturnResult.execute(ReturnResult.java:34)
 at org.gradle.launcher.daemon.server.exec.DaemonCommandExecution.proceed(DaemonCommandExecution.java:125)
 at org.gradle.launcher.daemon.server.exec.ForwardClientInput$2.call(ForwardClientInput.java:71)
 at org.gradle.launcher.daemon.server.exec.ForwardClientInput$2.call(ForwardClientInput.java:69)
 at org.gradle.util.Swapper.swap(Swapper.java:38)
 at org.gradle.launcher.daemon.server.exec.ForwardClientInput.execute(ForwardClientInput.java:69)
 at org.gradle.launcher.daemon.server.exec.DaemonCommandExecution.proceed(DaemonCommandExecution.java:125)
 at org.gradle.launcher.daemon.server.exec.LogToClient.doBuild(LogToClient.java:60)
 at org.gradle.launcher.daemon.server.exec.BuildCommandOnly.execute(BuildCommandOnly.java:34)
 at org.gradle.launcher.daemon.server.exec.DaemonCommandExecution.proceed(DaemonCommandExecution.java:125)
 at org.gradle.launcher.daemon.server.exec.EstablishBuildEnvironment.doBuild(EstablishBuildEnvironment.java:60)
 at org.gradle.launcher.daemon.server.exec.BuildCommandOnly.execute(BuildCommandOnly.java:34)
 at org.gradle.launcher.daemon.server.exec.DaemonCommandExecution.proceed(DaemonCommandExecution.java:125)
 at org.gradle.launcher.daemon.server.exec.StartBuildOrRespondWithBusy$1.run(StartBuildOrRespondWithBusy.java:45)
 at org.gradle.launcher.daemon.server.DaemonStateCoordinator.runCommand(DaemonStateCoordinator.java:186)
 at org.gradle.launcher.daemon.server.exec.StartBuildOrRespondWithBusy.doBuild(StartBuildOrRespondWithBusy.java:49)
 at org.gradle.launcher.daemon.server.exec.BuildCommandOnly.execute(BuildCommandOnly.java:34)
 at org.gradle.launcher.daemon.server.exec.DaemonCommandExecution.proceed(DaemonCommandExecution.java:125)
 at org.gradle.launcher.daemon.server.exec.HandleStop.execute(HandleStop.java:36)
 at org.gradle.launcher.daemon.server.exec.DaemonCommandExecution.proceed(DaemonCommandExecution.java:125)
 at org.gradle.launcher.daemon.server.exec.DaemonHygieneAction.execute(DaemonHygieneAction.java:39)
 at org.gradle.launcher.daemon.server.exec.DaemonCommandExecution.proceed(DaemonCommandExecution.java:125)
 at org.gradle.launcher.daemon.server.exec.CatchAndForwardDaemonFailure.execute(CatchAndForwardDaemonFailure.java:32)
 at org.gradle.launcher.daemon.server.exec.DaemonCommandExecution.proceed(DaemonCommandExecution.java:125)
 at org.gradle.launcher.daemon.server.exec.DefaultDaemonCommandExecuter.executeCommand(DefaultDaemonCommandExecuter.java:51)
 at org.gradle.launcher.daemon.server.DefaultIncomingConnectionHandler$ConnectionWorker.handleCommand(DefaultIncomingConnectionHandler.java:155)
 at org.gradle.launcher.daemon.server.DefaultIncomingConnectionHandler$ConnectionWorker.receiveAndHandleCommand(DefaultIncomingConnectionHandler.java:128)
 at org.gradle.launcher.daemon.server.DefaultIncomingConnectionHandler$ConnectionWorker.run(DefaultIncomingConnectionHandler.java:116)
 at org.gradle.internal.concurrent.DefaultExecutorFactory$StoppableExecutorImpl$1.run(DefaultExecutorFactory.java:64)
Caused by: java.lang.NoClassDefFoundError: org.grails.gradle.plugin.tasks.GrailsTask
 at grails_5ll5nj66lcs9b212v4b2fcl4tv.class$(/Users/jengelman/workspace/personal/gg-test/grails.gradle)
 at grails_5ll5nj66lcs9b212v4b2fcl4tv.$get$$class$org$grails$gradle$plugin$tasks$GrailsTask(/Users/jengelman/workspace/personal/gg-test/grails.gradle)
 at grails_5ll5nj66lcs9b212v4b2fcl4tv.run(/Users/jengelman/workspace/personal/gg-test/grails.gradle:21)
 at org.gradle.groovy.scripts.internal.DefaultScriptRunnerFactory$ScriptRunnerImpl.run(DefaultScriptRunnerFactory.java:52)
 ... 73 more

If I remove one of the nestings, change build.gradle to be:

apply from: file('grails.gradle')

Then the file resolves fine and the build will run.

This build works fine in Gradle 1.11.

2

So the only place where you are declaring ‘grails-gradle-plugin’ is ’ buildSrc/build.gradle’? Then you can use it only for the ‘buildSrc’ build. If you want to use it for the main build, you need a ‘buildscript’ block in ‘build.gradle’.

3

Ok, that works. Which isn’t overly surprising, except this wasn’t an issue before and previously when I did this, I would get class loader conflicts.

But now I don’t seem to be able to replicate that issue.

Question -> if I apply a ‘buildscript’ block in the main ‘build.gradle’ file, should those classes be available in any applied script or are they isolated and I need to apply the same ‘buildscript’ block in each one?

It seems like when doing an ‘apply from: file’ that script to be loaded should extend from the classloader of the parent, but that doesn’t seem to be the case.

4

Currently, the ‘buildscript’ block needs to go into the project’s main build script, and does affect scripts applied to the main script.

5

Thanks Peter, but it doesn’t seem to be working that way.

It works correctly for one level of nesting: build.gradle -> apply -> grails.gradle

but not deeper: build.gradle -> apply -> grails.gradle -> apply -> grails2.gradle

Furthermore, it appears that classes from the ‘buildSrc’ build are not available in the 2nd level (grails2.gradle) file.

6

Can you try with 1.11? Might be a regression in 1.12-rc-1.

7

Works in 1.11.

Here is an example project: https://github.com/johnrengelman/grails-gradle-112

Under Gradle 1.11 it works fine (this actually shows the ‘buildSrc’ dependencies being availble for all subsequent scripts…which makes sense to me because it’s ‘buildSrc’ inherently placed onto the classpath? shouldn’t all it’s dependencies be placed there, too?)

Under Gradle 1.12 this fails, unless you explicitly add a ‘buildscript’ block to the ‘gradle-base.gradle’ file (which only fixes the ‘GrailsTask’ dependency, but the classes from ‘buildSrc’ are not available)

8

Sorry, I mistakenly believed that the dependency declarations in your ‘buildSrc/build.gradle’ were inside a ‘buildscript’ block. So let me try again: Yes, I’d expect that ‘buildSrc’ code and its compile and runtime dependencies are accessible from all build scripts. I was able to validate that this is the case in 1.11, but isn’t the case in 1.12-rc-1 for “second-order” script plugins (build.gradle -> apply -> plugin1.gradle -> apply -> plugin2.gradle). Raised GRADLE-3069. Thanks for the report!

9

Thanks Peter!