Scott Wegner created BEAM-2883:
----------------------------------
Summary: Poor error message when forgetting to specify a Datastore
project.
Key: BEAM-2883
URL: https://issues.apache.org/jira/browse/BEAM-2883
Project: Beam
Issue Type: Bug
Components: sdk-java-gcp
Reporter: Scott Wegner
Assignee: Chamikara Jayalath
Priority: Minor
From:
https://stackoverflow.com/questions/46155781/mojoexecutionexception-while-writing-to-bigquery
A Beam user using DatastoreIO.v1() encountered an error because their pipeline
didn't specify a Datastore project via DatastoreIO.v1().read().withProject(..).
But the error was not very informative. Even when referencing the source code,
it is difficult to trace through the code due to use of AutoValue and
ValueProvider.
The error was:
[ERROR] Failed to execute goal org.codehaus.mojo:exec-maven-plugin:1.4.0:java
(default-cli) on project pubsub-bigquery: An exception occured while executing
the Java class. null: InvocationTargetException: projectId -> [Help 1]
org.apache.maven.lifecycle.LifecycleExecutionException: Failed to execute goal
org.codehaus.mojo:exec-maven-plugin:1.4.0:java (default-cli) on project
pubsub-bigquery: An exception occured while executing the Java class. null
at
org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:212)
at
org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:153)
at
org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:145)
at
org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject(LifecycleModuleBuilder.java:116)
at
org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject(LifecycleModuleBuilder.java:80)
at
org.apache.maven.lifecycle.internal.builder.singlethreaded.SingleThreadedBuilder.build(SingleThreadedBuilder.java:51)
at
org.apache.maven.lifecycle.internal.LifecycleStarter.execute(LifecycleStarter.java:128)
at org.apache.maven.DefaultMaven.doExecute(DefaultMaven.java:307)
at org.apache.maven.DefaultMaven.doExecute(DefaultMaven.java:193)
at org.apache.maven.DefaultMaven.execute(DefaultMaven.java:106)
at org.apache.maven.cli.MavenCli.execute(MavenCli.java:863)
at org.apache.maven.cli.MavenCli.doMain(MavenCli.java:288)
at org.apache.maven.cli.MavenCli.main(MavenCli.java:199)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at
org.codehaus.plexus.classworlds.launcher.Launcher.launchEnhanced(Launcher.java:289)
at
org.codehaus.plexus.classworlds.launcher.Launcher.launch(Launcher.java:229)
at
org.codehaus.plexus.classworlds.launcher.Launcher.mainWithExitCode(Launcher.java:415)
at org.codehaus.plexus.classworlds.launcher.Launcher.main(Launcher.java:356)
Caused by: org.apache.maven.plugin.MojoExecutionException: An exception occured
while executing the Java class. null
at org.codehaus.mojo.exec.ExecJavaMojo.execute(ExecJavaMojo.java:345)
at
org.apache.maven.plugin.DefaultBuildPluginManager.executeMojo(DefaultBuildPluginManager.java:134)
at
org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:207)
... 20 more
Caused by: java.lang.reflect.InvocationTargetException
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at org.codehaus.mojo.exec.ExecJavaMojo$1.run(ExecJavaMojo.java:293)
at java.lang.Thread.run(Thread.java:745)
Caused by: java.lang.NullPointerException: projectId
at com.google.common.base.Preconditions.checkNotNull(Preconditions.java:787)
at
org.apache.beam.sdk.io.gcp.datastore.DatastoreV1$Read.validate(DatastoreV1.java:624)
at
org.apache.beam.sdk.Pipeline$ValidateVisitor.enterCompositeTransform(Pipeline.java:610)
at
org.apache.beam.sdk.runners.TransformHierarchy$Node.visit(TransformHierarchy.java:590)
at
org.apache.beam.sdk.runners.TransformHierarchy$Node.visit(TransformHierarchy.java:594)
at
org.apache.beam.sdk.runners.TransformHierarchy$Node.access$500(TransformHierarchy.java:276)
at
org.apache.beam.sdk.runners.TransformHierarchy.visit(TransformHierarchy.java:210)
at org.apache.beam.sdk.Pipeline.traverseTopologically(Pipeline.java:440)
at org.apache.beam.sdk.Pipeline.validate(Pipeline.java:552)
at org.apache.beam.sdk.Pipeline.run(Pipeline.java:296)
at org.apache.beam.sdk.Pipeline.run(Pipeline.java:283)
at org.druk.twc.tobq.DsToBQ.main(DsToBQ.java:126)
... 6 more
[ERROR]
[ERROR] Re-run Maven using the -X switch to enable full debug logging.
[ERROR]
[ERROR] For more information about the errors and possible solutions, please
read the following articles:
[ERROR] [Help 1]
http://cwiki.apache.org/confluence/display/MAVEN/MojoExecutionException
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