Gradle init command not working

vignesh1991 · July 24, 2017, 6:32am

I tried to use gradle init command for the below pom, but it is throwing error that could not convert maven pom to gradle build. I am not able to identify the issue.

<?xml version="1.0" encoding="UTF-8"?>

4.0.0

<groupId>com.core.lab</groupId>
<artifactId>CommonTestApp</artifactId>
<version>0.0.1-SNAPSHOT</version>
<packaging>jar</packaging>

<name>CommonTestApp</name>
<description>Demo project for Core-Parent</description>

<parent>
	<groupId>com.java</groupId>
	<artifactId>core-parent</artifactId>
	<version>1-SNAPSHOT</version>
	<!-- <relativePath>../coreload-parent</relativePath> --> <!-- to be removed when pushed to repository -->
</parent>

<properties>
	<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
	<project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
	<java.version>1.8</java.version>
	<spring-cloud.version>Dalston.SR1</spring-cloud.version>
</properties>

<dependencyManagement>
	<dependencies>
		<dependency>
			<groupId>org.springframework.cloud</groupId>
			<artifactId>spring-cloud-dependencies</artifactId>
			<version>${spring-cloud.version}</version>
			<type>pom</type>
			<scope>import</scope>
		</dependency>
	</dependencies>
</dependencyManagement>

<dependencies>
	<!-- https://mvnrepository.com/artifact/org.springframework.cloud/spring-cloud-starter-hystrix -->
	<dependency>
		<groupId>org.springframework.cloud</groupId>
		<artifactId>spring-cloud-starter-hystrix</artifactId>
	</dependency>
	<dependency>
		<groupId>org.springframework.cloud</groupId>
		<artifactId>spring-cloud-starter-config</artifactId>
	</dependency>
</dependencies>

<build>
	<plugins>
		<plugin>
			<groupId>org.springframework.boot</groupId>
			<artifactId>spring-boot-maven-plugin</artifactId>
		</plugin>
	</plugins>
</build>

Rene · July 24, 2017, 6:54am

What is the exact error message you get? can you provide the stacktrace by running the init command with —stacktrace?

vignesh1991 · July 24, 2017, 8:53am

C:\Users\2126xxxxxx\Documents\workspace-sts-3.8.3.RELEASE\CommonTestApp>gradle init --stacktrace

Task :init
Maven to Gradle conversion is an incubating feature.

FAILURE: Build failed with an exception.

What went wrong:
Execution failed for task ‘:init’.

Could not convert Maven POM C:\Users\2126xxxxxx\Documents\workspace-sts-3.8.3.RELEASE\CommonTestApp\pom.xml to a Gradle build.
Unable to create Maven project model using POM C:\Users\2126xxxxxx\Documents\workspace-sts-3.8.3.RELEASE\CommonTestApp\pom.xml.
java.lang.NullPointerException (no error message)

Try:
Run with --info or --debug option to get more log output.
Exception is:
org.gradle.api.tasks.TaskExecutionException: Execution failed for task ‘:init’.
at org.gradle.api.internal.tasks.execution.ExecuteActionsTaskExecuter.executeActions(ExecuteActionsTaskExecuter.java:100)
at org.gradle.api.internal.tasks.execution.ExecuteActionsTaskExecuter.execute(ExecuteActionsTaskExecuter.java:70)
at org.gradle.api.internal.tasks.execution.SkipUpToDateTaskExecuter.execute(SkipUpToDateTaskExecuter.java:64)
at org.gradle.api.internal.tasks.execution.ResolveTaskOutputCachingStateExecuter.execute(ResolveTaskOutputCachingStateExecuter.java:54)
at org.gradle.api.internal.tasks.execution.ValidatingTaskExecuter.execute(ValidatingTaskExecuter.java:58)
at org.gradle.api.internal.tasks.execution.SkipEmptySourceFilesTaskExecuter.execute(SkipEmptySourceFilesTaskExecuter.java:88)
at org.gradle.api.internal.tasks.execution.ResolveTaskArtifactStateTaskExecuter.execute(ResolveTaskArtifactStateTaskExecuter.java:52)
at org.gradle.api.internal.tasks.execution.SkipTaskWithNoActionsExecuter.execute(SkipTaskWithNoActionsExecuter.java:52)
at org.gradle.api.internal.tasks.execution.SkipOnlyIfTaskExecuter.execute(SkipOnlyIfTaskExecuter.java:54)
at org.gradle.api.internal.tasks.execution.ExecuteAtMostOnceTaskExecuter.execute(ExecuteAtMostOnceTaskExecuter.java:43)
at org.gradle.api.internal.tasks.execution.CatchExceptionTaskExecuter.execute(CatchExceptionTaskExecuter.java:34)
at org.gradle.execution.taskgraph.DefaultTaskGraphExecuter$EventFiringTaskWorker$1.run(DefaultTaskGraphExecuter.java:242)
at org.gradle.internal.progress.DefaultBuildOperationExecutor$RunnableBuildOperationWorker.execute(DefaultBuildOperationExecutor.java:317)
at org.gradle.internal.progress.DefaultBuildOperationExecutor$RunnableBuildOperationWorker.execute(DefaultBuildOperationExecutor.java:309)
at org.gradle.internal.progress.DefaultBuildOperationExecutor.execute(DefaultBuildOperationExecutor.java:185)
at org.gradle.internal.progress.DefaultBuildOperationExecutor.run(DefaultBuildOperationExecutor.java:95)
at org.gradle.execution.taskgraph.DefaultTaskGraphExecuter$EventFiringTaskWorker.execute(DefaultTaskGraphExecuter.java:235)
at org.gradle.execution.taskgraph.DefaultTaskGraphExecuter$EventFiringTaskWorker.execute(DefaultTaskGraphExecuter.java:224)
at org.gradle.execution.taskgraph.DefaultTaskPlanExecutor$TaskExecutorWorker.processTask(DefaultTaskPlanExecutor.java:121)
at org.gradle.execution.taskgraph.DefaultTaskPlanExecutor$TaskExecutorWorker.access$200(DefaultTaskPlanExecutor.java:77)
at org.gradle.execution.taskgraph.DefaultTaskPlanExecutor$TaskExecutorWorker$1.execute(DefaultTaskPlanExecutor.java:102)
at org.gradle.execution.taskgraph.DefaultTaskPlanExecutor$TaskExecutorWorker$1.execute(DefaultTaskPlanExecutor.java:96)
at org.gradle.execution.taskgraph.DefaultTaskExecutionPlan.execute(DefaultTaskExecutionPlan.java:612)
at org.gradle.execution.taskgraph.DefaultTaskExecutionPlan.executeWithTask(DefaultTaskExecutionPlan.java:567)
at org.gradle.execution.taskgraph.DefaultTaskPlanExecutor$TaskExecutorWorker.run(DefaultTaskPlanExecutor.java:96)
at org.gradle.internal.concurrent.ExecutorPolicy$CatchAndRecordFailures.onExecute(ExecutorPolicy.java:63)
at org.gradle.internal.concurrent.StoppableExecutorImpl$1.run(StoppableExecutorImpl.java:46)
at org.gradle.internal.concurrent.ThreadFactoryImpl$ManagedThreadRunnable.run(ThreadFactoryImpl.java:55)
Caused by: org.gradle.buildinit.plugins.internal.maven.MavenConversionException: Could not convert Maven POM C:\Users\212631126\Documents\workspace-sts-3.8.3.RELEASE\CommonTestApp\pom.xml to a Gradle build.
at org.gradle.buildinit.plugins.internal.PomProjectInitDescriptor.generate(PomProjectInitDescriptor.java:48)
at org.gradle.buildinit.tasks.InitBuild.setupProjectLayout(InitBuild.java:97)
at org.gradle.internal.reflect.JavaMethod.invoke(JavaMethod.java:73)
at org.gradle.api.internal.project.taskfactory.DefaultTaskClassInfoStore$StandardTaskAction.doExecute(DefaultTaskClassInfoStore.java:141)
at org.gradle.api.internal.project.taskfactory.DefaultTaskClassInfoStore$StandardTaskAction.execute(DefaultTaskClassInfoStore.java:134)
at org.gradle.api.internal.project.taskfactory.DefaultTaskClassInfoStore$StandardTaskAction.execute(DefaultTaskClassInfoStore.java:121)
at org.gradle.api.internal.AbstractTask$TaskActionWrapper.execute(AbstractTask.java:711)
at org.gradle.api.internal.AbstractTask$TaskActionWrapper.execute(AbstractTask.java:694)
at org.gradle.api.internal.tasks.execution.ExecuteActionsTaskExecuter$1.run(ExecuteActionsTaskExecuter.java:122) at org.gradle.internal.progress.DefaultBuildOperationExecutor$RunnableBuildOperationWorker.execute(DefaultBuildOperationExecutor.java:317)
at org.gradle.internal.progress.DefaultBuildOperationExecutor$RunnableBuildOperationWorker.execute(DefaultBuildOperationExecutor.java:309)
at org.gradle.internal.progress.DefaultBuildOperationExecutor.execute(DefaultBuildOperationExecutor.java:185)
at org.gradle.internal.progress.DefaultBuildOperationExecutor.run(DefaultBuildOperationExecutor.java:95)
at org.gradle.api.internal.tasks.execution.ExecuteActionsTaskExecuter.executeAction(ExecuteActionsTaskExecuter.java:111)
at org.gradle.api.internal.tasks.execution.ExecuteActionsTaskExecuter.executeActions(ExecuteActionsTaskExecuter.java:92)
… 27 more
Caused by: org.gradle.buildinit.plugins.internal.maven.MavenConversionException: Unable to create Maven project model using POM C:\Users\212631126\Documents\workspace-sts-3.8.3.RELEASE\CommonTestApp\pom.xml.
at org.gradle.buildinit.plugins.internal.maven.MavenProjectsCreator.create(MavenProjectsCreator.java:51)
at org.gradle.buildinit.plugins.internal.PomProjectInitDescriptor.generate(PomProjectInitDescriptor.java:45)
… 41 more
Caused by: java.lang.NullPointerException
at org.sonatype.aether.impl.internal.DefaultMetadataResolver.resolve(DefaultMetadataResolver.java:279)
at org.sonatype.aether.impl.internal.DefaultMetadataResolver.resolveMetadata(DefaultMetadataResolver.java:173)
at org.apache.maven.repository.internal.DefaultVersionResolver.resolveVersion(DefaultVersionResolver.java:225)
at org.sonatype.aether.impl.internal.DefaultArtifactResolver.resolve(DefaultArtifactResolver.java:272)
at org.sonatype.aether.impl.internal.DefaultArtifactResolver.resolveArtifacts(DefaultArtifactResolver.java:216)
at org.sonatype.aether.impl.internal.DefaultArtifactResolver.resolveArtifact(DefaultArtifactResolver.java:193)
at org.sonatype.aether.impl.internal.DefaultRepositorySystem.resolveArtifact(DefaultRepositorySystem.java:286)
at org.apache.maven.project.ProjectModelResolver.resolveModel(ProjectModelResolver.java:155)
at org.apache.maven.model.building.DefaultModelBuilder.readParentExternally(DefaultModelBuilder.java:813)
at org.apache.maven.model.building.DefaultModelBuilder.readParent(DefaultModelBuilder.java:664)
at org.apache.maven.model.building.DefaultModelBuilder.build(DefaultModelBuilder.java:310)
at org.apache.maven.model.building.DefaultModelBuilder.build(DefaultModelBuilder.java:232)
at org.apache.maven.project.DefaultProjectBuilder.build(DefaultProjectBuilder.java:142)
at org.apache.maven.project.DefaultProjectBuilder.build(DefaultProjectBuilder.java:102)
at org.gradle.buildinit.plugins.internal.maven.MavenProjectsCreator.createNow(MavenProjectsCreator.java:71)
at org.gradle.buildinit.plugins.internal.maven.MavenProjectsCreator.create(MavenProjectsCreator.java:49)
… 42 more

BUILD FAILED in 2s
2 actionable tasks: 1 executed, 1 up-to-date