Java Gradle Multi-Module: "Module can only have 1 content root"

[lukasbradley]

Describe the bug
In attempting to execute a Lambda in a multi-module Gradle project, the Plugin has a fatal error.

To reproduce

1. Create a multi-module Gradle project.
2. Select the RequestHandler class to execute.
3. Run it...

Expected behavior
No fatal error...?

Actual behavior

IDE Fatal Error: The Plugin crashes with the following stack trace.
java.lang.IllegalArgumentException: Module can only have 1 content root at software.aws.toolkits.jetbrains.services.lambda.java.JavaLambdaBuilder.getBaseDirectory(JavaLambdaBuilder.kt:43) at software.aws.toolkits.jetbrains.services.lambda.java.JavaLambdaBuilder.buildLambda(JavaLambdaBuilder.kt:30) at software.aws.toolkits.jetbrains.services.lambda.LambdaBuilderUtils.runSamBuild(LambdaBuilderUtils.kt:133) at software.aws.toolkits.jetbrains.services.lambda.LambdaBuilderUtils.access$runSamBuild(LambdaBuilderUtils.kt:32) at software.aws.toolkits.jetbrains.services.lambda.LambdaBuilderUtils$buildAndReport$$inlined$runSamBuildInBackground$1.run(LambdaBuilderUtils.kt:177) at com.intellij.openapi.progress.impl.CoreProgressManager$TaskRunnable.run(CoreProgressManager.java:731) at com.intellij.openapi.progress.impl.CoreProgressManager.lambda$runProcess$2(CoreProgressManager.java:164) at com.intellij.openapi.progress.impl.CoreProgressManager.registerIndicatorAndRun(CoreProgressManager.java:586) at com.intellij.openapi.progress.impl.CoreProgressManager.executeProcessUnderProgress(CoreProgressManager.java:532) at com.intellij.openapi.progress.impl.ProgressManagerImpl.executeProcessUnderProgress(ProgressManagerImpl.java:86) at com.intellij.openapi.progress.impl.CoreProgressManager.runProcess(CoreProgressManager.java:151) at com.intellij.openapi.progress.impl.CoreProgressManager$4.run(CoreProgressManager.java:403) at com.intellij.openapi.application.impl.ApplicationImpl$1.run(ApplicationImpl.java:311) at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) at java.util.concurrent.FutureTask.run(FutureTask.java:266) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) at java.lang.Thread.run(Thread.java:748)

Your Environment

• OS: Ubuntu 18.10
• JetBrains' Product: IDEA
• JetBrains' Product Version: Ultimate 2019.1
• Toolkit Version: 1.2
• SAM CLI Version: 0.14.2
• JVM/Python Version: JDK 1.8

Additional context
The plugin completely crashes and will not allow me to re-run. I have to shut down the IDE and restart.

[abrooksv]

So it seems we have 2 issues here:

1. Improve the logic around resolving handlers when using a Java handler invocation with respect to Gradle imports.
2. Make sure we wrap all exceptions coming out of the Run/Debug system as an ExecutionExceptionas per the method contract

[zhangzhx]

This fix has been released in version 1.3. Feel free to reopen it if you still see any issue.