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gradle-showcase-worker-exception

the "database-plugin" will spawn a worker process that is classpath isolated. In it's classpath a postgresql jdbc connection is attempted to be established (to a not existing database). The attempt obviously fails and the expectation is that the Exception can be catched and gradle will terminate failed but gracefully.

Instead, the Gradle core process has issues dealing with the returned Postgresql Exception and terminates abruptly.

The project has a Spok test-kit spec to show the results. Feel free to repeat the tests with a locally deployed version of this plugin, you should get the same results.

wrapping the exception

    public void execute() {

        try(Connection con = DriverManager.getConnection("jdbc:postgresql://localhost:5432/postgres", "postgres", "postgres")) {
            con.setAutoCommit(false);
        } catch (Exception e) {
            throw new GradleException("db interaction failed", e);
        }
    }

fails like this:

BUILD FAILED in 6s
1 actionable task: 1 executed

FAILURE: Build completed with 2 failures.

1: Task failed with an exception.
-----------
* What went wrong:
Execution failed for task ':updateDatabase'.
> There was a failure while executing work items
   > A failure occurred while executing com.example.plugin.UpdateWorkAction
      > db interaction failed

* Try:
> Run with --stacktrace option to get the stack trace.
> Run with --info or --debug option to get more log output.
> Run with --scan to get full insights.
> Get more help at https://help.gradle.org.
==============================================================================

2: Task failed with an exception.
-----------
* What went wrong:
org/postgresql/util/ServerErrorMessage
> org.postgresql.util.ServerErrorMessage

* Try:
> Run with --stacktrace option to get the stack trace.
> Run with --info or --debug option to get more log output.
> Run with --scan to get full insights.
> Get more help at https://help.gradle.org.
==============================================================================

Deprecated Gradle features were used in this build, making it incompatible with Gradle 9.0.

You can use '--warning-mode all' to show the individual deprecation warnings and determine if they come from your own scripts or plugins.

For more on this, please refer to https://docs.gradle.org/8.13/userguide/command_line_interface.html#sec:command_line_warnings in the Gradle documentation.

BUILD FAILED in 6s

	at org.gradle.testkit.runner.internal.ToolingApiGradleExecutor.run(ToolingApiGradleExecutor.java:170)
	at org.gradle.testkit.runner.internal.DefaultGradleRunner.run(DefaultGradleRunner.java:353)
	at org.gradle.testkit.runner.internal.DefaultGradleRunner.buildAndFail(DefaultGradleRunner.java:281)
	at com.example.plugin.UpdateSpec.test updateDb with no settings(UpdateSpec.groovy:28)
Caused by: org.gradle.tooling.GradleConnectionException: Could not execute build using connection to Gradle installation 'C:\EDF\.gradle\wrapper\dists\gradle-8.13-bin\5xuhj0ry160q40clulazy9h7d\gradle-8.13'.
	at org.gradle.tooling.internal.consumer.ConnectionExceptionTransformer.transform(ConnectionExceptionTransformer.java:73)
	at org.gradle.tooling.internal.consumer.ResultHandlerAdapter.onFailure(ResultHandlerAdapter.java:42)
	at org.gradle.tooling.internal.consumer.async.DefaultAsyncConsumerActionExecutor$1$1.run(DefaultAsyncConsumerActionExecutor.java:68)
	at org.gradle.internal.concurrent.ExecutorPolicy$CatchAndRecordFailures.onExecute(ExecutorPolicy.java:64)
	at org.gradle.internal.concurrent.AbstractManagedExecutor$1.run(AbstractManagedExecutor.java:48)
	at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128)
	at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628)
	at java.base/java.lang.Thread.run(Thread.java:829)
	at org.gradle.tooling.internal.consumer.BlockingResultHandler.getResult(BlockingResultHandler.java:46)
	at org.gradle.tooling.internal.consumer.DefaultBuildLauncher.run(DefaultBuildLauncher.java:82)
	at org.gradle.testkit.runner.internal.ToolingApiGradleExecutor.run(ToolingApiGradleExecutor.java:146)
	... 3 more
Caused by: java.lang.NullPointerException
	at org.gradle.tooling.internal.provider.serialization.PayloadSerializer.deserialize(PayloadSerializer.java:70)
	at org.gradle.tooling.internal.provider.ProviderConnection.run(ProviderConnection.java:270)
	at org.gradle.tooling.internal.provider.ProviderConnection.run(ProviderConnection.java:176)
	at org.gradle.tooling.internal.provider.DefaultConnection.getModel(DefaultConnection.java:154)
	at org.gradle.tooling.internal.consumer.connection.CancellableModelBuilderBackedModelProducer.produceModel(CancellableModelBuilderBackedModelProducer.java:53)
	at org.gradle.tooling.internal.consumer.connection.PluginClasspathInjectionSupportedCheckModelProducer.produceModel(PluginClasspathInjectionSupportedCheckModelProducer.java:38)
	at org.gradle.tooling.internal.consumer.connection.AbstractConsumerConnection.run(AbstractConsumerConnection.java:64)
	at org.gradle.tooling.internal.consumer.connection.ParameterValidatingConsumerConnection.run(ParameterValidatingConsumerConnection.java:49)
	at org.gradle.tooling.internal.consumer.DefaultBuildLauncher$1.run(DefaultBuildLauncher.java:96)
	at org.gradle.tooling.internal.consumer.DefaultBuildLauncher$1.run(DefaultBuildLauncher.java:88)
	at org.gradle.tooling.internal.consumer.connection.LazyConsumerActionExecutor.run(LazyConsumerActionExecutor.java:143)
	at org.gradle.tooling.internal.consumer.connection.CancellableConsumerActionExecutor.run(CancellableConsumerActionExecutor.java:45)
	at org.gradle.tooling.internal.consumer.connection.ProgressLoggingConsumerActionExecutor.run(ProgressLoggingConsumerActionExecutor.java:61)
	at org.gradle.tooling.internal.consumer.connection.RethrowingErrorsConsumerActionExecutor.run(RethrowingErrorsConsumerActionExecutor.java:38)
	at org.gradle.tooling.internal.consumer.async.DefaultAsyncConsumerActionExecutor$1$1.run(DefaultAsyncConsumerActionExecutor.java:66)
	at org.gradle.internal.concurrent.ExecutorPolicy$CatchAndRecordFailures.onExecute(ExecutorPolicy.java:64)
	at org.gradle.internal.concurrent.AbstractManagedExecutor$1.run(AbstractManagedExecutor.java:48)
	at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128)
	at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628)
	at java.base/java.lang.Thread.run(Thread.java:829)


Could not execute build using connection to Gradle installation 'C:\EDF\.gradle\wrapper\dists\gradle-8.13-bin\5xuhj0ry160q40clulazy9h7d\gradle-8.13'.
org.gradle.tooling.GradleConnectionException: Could not execute build using connection to Gradle installation 'C:\EDF\.gradle\wrapper\dists\gradle-8.13-bin\5xuhj0ry160q40clulazy9h7d\gradle-8.13'.
	at app//org.gradle.tooling.internal.consumer.ConnectionExceptionTransformer.transform(ConnectionExceptionTransformer.java:73)
	at app//org.gradle.tooling.internal.consumer.ResultHandlerAdapter.onFailure(ResultHandlerAdapter.java:42)
	at app//org.gradle.tooling.internal.consumer.async.DefaultAsyncConsumerActionExecutor$1$1.run(DefaultAsyncConsumerActionExecutor.java:68)
	at app//org.gradle.internal.concurrent.ExecutorPolicy$CatchAndRecordFailures.onExecute(ExecutorPolicy.java:64)
	at app//org.gradle.internal.concurrent.AbstractManagedExecutor$1.run(AbstractManagedExecutor.java:48)
	at [email protected]/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128)
	at [email protected]/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628)
	at [email protected]/java.lang.Thread.run(Thread.java:829)
	at app//org.gradle.tooling.internal.consumer.BlockingResultHandler.getResult(BlockingResultHandler.java:46)
	at app//org.gradle.tooling.internal.consumer.DefaultBuildLauncher.run(DefaultBuildLauncher.java:82)
	at app//org.gradle.testkit.runner.internal.ToolingApiGradleExecutor.run(ToolingApiGradleExecutor.java:146)
	at app//org.gradle.testkit.runner.internal.DefaultGradleRunner.run(DefaultGradleRunner.java:353)
	at app//org.gradle.testkit.runner.internal.DefaultGradleRunner.buildAndFail(DefaultGradleRunner.java:281)
	at com.example.plugin.UpdateSpec.test updateDb with no settings(UpdateSpec.groovy:28)

logging the exception

    @Override
    public void execute() {

        try(Connection con = DriverManager.getConnection("jdbc:postgresql://localhost:5432/postgres", "postgres", "postgres")) {
            con.setAutoCommit(false);
        } catch (Exception e) {
            Logging.getLogger(UpdateWorkAction.class).error("issue occured", e);
            throw new GradleException("db interaction failed");
        }
    }

fails even more drastically

An error occurred executing build with args '-Dorg.gradle.vfs.watch=false updateDatabase' in directory 'C:\Users\...\AppData\Local\Temp\spock_test_updateDb_with__0_projectDir12837240114094370567'. Output before error:
> Task :updateDatabase

java.lang.IllegalStateException: An error occurred executing build with args '-Dorg.gradle.vfs.watch=false updateDatabase' in directory 'C:\Users\...\AppData\Local\Temp\spock_test_updateDb_with__0_projectDir12837240114094370567'. Output before error:
> Task :updateDatabase

	at org.gradle.testkit.runner.internal.ToolingApiGradleExecutor.run(ToolingApiGradleExecutor.java:170)
	at org.gradle.testkit.runner.internal.DefaultGradleRunner.run(DefaultGradleRunner.java:353)
	at org.gradle.testkit.runner.internal.DefaultGradleRunner.buildAndFail(DefaultGradleRunner.java:281)
	at com.example.plugin.UpdateSpec.test updateDb with no settings(UpdateSpec.groovy:28)
Caused by: org.gradle.tooling.GradleConnectionException: Could not execute build using connection to Gradle installation 'C:\EDF\.gradle\wrapper\dists\gradle-8.13-bin\5xuhj0ry160q40clulazy9h7d\gradle-8.13'.
	at org.gradle.tooling.internal.consumer.ConnectionExceptionTransformer.transform(ConnectionExceptionTransformer.java:73)
	at org.gradle.tooling.internal.consumer.ResultHandlerAdapter.onFailure(ResultHandlerAdapter.java:42)
	at org.gradle.tooling.internal.consumer.async.DefaultAsyncConsumerActionExecutor$1$1.run(DefaultAsyncConsumerActionExecutor.java:68)
	at org.gradle.internal.concurrent.ExecutorPolicy$CatchAndRecordFailures.onExecute(ExecutorPolicy.java:64)
	at org.gradle.internal.concurrent.AbstractManagedExecutor$1.run(AbstractManagedExecutor.java:48)
	at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128)
	at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628)
	at java.base/java.lang.Thread.run(Thread.java:829)
	at org.gradle.tooling.internal.consumer.BlockingResultHandler.getResult(BlockingResultHandler.java:46)
	at org.gradle.tooling.internal.consumer.DefaultBuildLauncher.run(DefaultBuildLauncher.java:82)
	at org.gradle.testkit.runner.internal.ToolingApiGradleExecutor.run(ToolingApiGradleExecutor.java:146)
	... 3 more
Caused by: org.gradle.launcher.daemon.client.DaemonConnectionException: Could not receive a message from the daemon.
	at org.gradle.launcher.daemon.client.DaemonClientConnection.receive(DaemonClientConnection.java:88)
	at org.gradle.launcher.daemon.client.DaemonClient.monitorBuild(DaemonClient.java:246)
	at org.gradle.launcher.daemon.client.DaemonClient.executeBuild(DaemonClient.java:209)
	at org.gradle.launcher.daemon.client.DaemonClient.execute(DaemonClient.java:172)
	at org.gradle.launcher.daemon.client.DaemonClient.execute(DaemonClient.java:97)
	at org.gradle.tooling.internal.provider.DaemonBuildActionExecuter.execute(DaemonBuildActionExecuter.java:44)
	at org.gradle.tooling.internal.provider.DaemonBuildActionExecuter.execute(DaemonBuildActionExecuter.java:30)
	at org.gradle.tooling.internal.provider.LoggingBridgingBuildActionExecuter.execute(LoggingBridgingBuildActionExecuter.java:59)
	at org.gradle.tooling.internal.provider.LoggingBridgingBuildActionExecuter.execute(LoggingBridgingBuildActionExecuter.java:38)
	at org.gradle.tooling.internal.provider.ProviderConnection.run(ProviderConnection.java:268)
	at org.gradle.tooling.internal.provider.ProviderConnection.run(ProviderConnection.java:176)
	at org.gradle.tooling.internal.provider.DefaultConnection.getModel(DefaultConnection.java:154)
	at org.gradle.tooling.internal.consumer.connection.CancellableModelBuilderBackedModelProducer.produceModel(CancellableModelBuilderBackedModelProducer.java:53)
	at org.gradle.tooling.internal.consumer.connection.PluginClasspathInjectionSupportedCheckModelProducer.produceModel(PluginClasspathInjectionSupportedCheckModelProducer.java:38)
	at org.gradle.tooling.internal.consumer.connection.AbstractConsumerConnection.run(AbstractConsumerConnection.java:64)
	at org.gradle.tooling.internal.consumer.connection.ParameterValidatingConsumerConnection.run(ParameterValidatingConsumerConnection.java:49)
	at org.gradle.tooling.internal.consumer.DefaultBuildLauncher$1.run(DefaultBuildLauncher.java:96)
	at org.gradle.tooling.internal.consumer.DefaultBuildLauncher$1.run(DefaultBuildLauncher.java:88)
	at org.gradle.tooling.internal.consumer.connection.LazyConsumerActionExecutor.run(LazyConsumerActionExecutor.java:143)
	at org.gradle.tooling.internal.consumer.connection.CancellableConsumerActionExecutor.run(CancellableConsumerActionExecutor.java:45)
	at org.gradle.tooling.internal.consumer.connection.ProgressLoggingConsumerActionExecutor.run(ProgressLoggingConsumerActionExecutor.java:61)
	at org.gradle.tooling.internal.consumer.connection.RethrowingErrorsConsumerActionExecutor.run(RethrowingErrorsConsumerActionExecutor.java:38)
	at org.gradle.tooling.internal.consumer.async.DefaultAsyncConsumerActionExecutor$1$1.run(DefaultAsyncConsumerActionExecutor.java:66)
	at org.gradle.internal.concurrent.ExecutorPolicy$CatchAndRecordFailures.onExecute(ExecutorPolicy.java:64)
	at org.gradle.internal.concurrent.AbstractManagedExecutor$1.run(AbstractManagedExecutor.java:48)
	at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128)
	at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628)
	at java.base/java.lang.Thread.run(Thread.java:829)
Caused by: org.gradle.internal.remote.internal.RecoverableMessageIOException: Could not read message from '/127.0.0.1:50467'.
	at org.gradle.internal.remote.internal.inet.SocketConnection.receive(SocketConnection.java:90)
	at org.gradle.launcher.daemon.client.DaemonClientConnection.receive(DaemonClientConnection.java:82)
	... 27 more
Caused by: java.io.StreamCorruptedException: invalid type code: 03
	at java.base/java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1718)
	at java.base/java.io.ObjectInputStream.readObject(ObjectInputStream.java:489)
	at java.base/java.io.ObjectInputStream.readObject(ObjectInputStream.java:447)
	at org.gradle.internal.serialize.Message.receive(Message.java:53)
	at org.gradle.internal.serialize.BaseSerializerFactory$ThrowableSerializer.read(BaseSerializerFactory.java:309)
	at org.gradle.internal.serialize.BaseSerializerFactory$ThrowableSerializer.read(BaseSerializerFactory.java:306)
	at org.gradle.internal.logging.serializer.LogEventSerializer.read(LogEventSerializer.java:56)
	at org.gradle.internal.logging.serializer.LogEventSerializer.read(LogEventSerializer.java:26)
	at org.gradle.internal.serialize.DefaultSerializerRegistry$TaggedTypeSerializer.read(DefaultSerializerRegistry.java:164)
	at org.gradle.launcher.daemon.protocol.DaemonMessageSerializer$OutputMessageSerializer.read(DaemonMessageSerializer.java:271)
	at org.gradle.launcher.daemon.protocol.DaemonMessageSerializer$OutputMessageSerializer.read(DaemonMessageSerializer.java:257)
	at org.gradle.internal.serialize.DefaultSerializerRegistry$TaggedTypeSerializer.read(DefaultSerializerRegistry.java:164)
	at org.gradle.internal.serialize.Serializers$StatefulSerializerAdapter$1.read(Serializers.java:36)
	at org.gradle.internal.remote.internal.inet.SocketConnection.receive(SocketConnection.java:83)
	... 28 more


Could not execute build using connection to Gradle installation 'C:\EDF\.gradle\wrapper\dists\gradle-8.13-bin\5xuhj0ry160q40clulazy9h7d\gradle-8.13'.
org.gradle.tooling.GradleConnectionException: Could not execute build using connection to Gradle installation 'C:\EDF\.gradle\wrapper\dists\gradle-8.13-bin\5xuhj0ry160q40clulazy9h7d\gradle-8.13'.
	at app//org.gradle.tooling.internal.consumer.ConnectionExceptionTransformer.transform(ConnectionExceptionTransformer.java:73)
	at app//org.gradle.tooling.internal.consumer.ResultHandlerAdapter.onFailure(ResultHandlerAdapter.java:42)
	at app//org.gradle.tooling.internal.consumer.async.DefaultAsyncConsumerActionExecutor$1$1.run(DefaultAsyncConsumerActionExecutor.java:68)
	at app//org.gradle.internal.concurrent.ExecutorPolicy$CatchAndRecordFailures.onExecute(ExecutorPolicy.java:64)
	at app//org.gradle.internal.concurrent.AbstractManagedExecutor$1.run(AbstractManagedExecutor.java:48)
	at [email protected]/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128)
	at [email protected]/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628)
	at [email protected]/java.lang.Thread.run(Thread.java:829)
	at app//org.gradle.tooling.internal.consumer.BlockingResultHandler.getResult(BlockingResultHandler.java:46)
	at app//org.gradle.tooling.internal.consumer.DefaultBuildLauncher.run(DefaultBuildLauncher.java:82)
	at app//org.gradle.testkit.runner.internal.ToolingApiGradleExecutor.run(ToolingApiGradleExecutor.java:146)
	at app//org.gradle.testkit.runner.internal.DefaultGradleRunner.run(DefaultGradleRunner.java:353)
	at app//org.gradle.testkit.runner.internal.DefaultGradleRunner.buildAndFail(DefaultGradleRunner.java:281)
	at com.example.plugin.UpdateSpec.test updateDb with no settings(UpdateSpec.groovy:28)

working options

  • using processIsolation
  • swallowing the original PostgreSQL Exception entirely
  • serializing the original Exception to a String and returning that as a GradleException message

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