This website uses cookies. By clicking Accept, you consent to the use of cookies. Click Here to learn more about how we use cookies.
Accept
Reject
cancel
Turn on suggestions
Auto-suggest helps you quickly narrow down your search results by suggesting possible matches as you type.
Showing results for 
Search instead for 
Did you mean: 
Help

Head's Up! These forums are read-only. All users and content have migrated. Please join us at community.neo4j.com.

Fail to run Open-GDS Junit test in Eclipse

Go to solution
Jean
Node Link

‎04-21-2022 02:22 AM

Hi, all,
I'm planning to upgrade my GDS library 1.6.1 to higher version of OpenGDS 1.8.6 or 2.0.2， which my own algorithm is running with. My problem is , OpenGDS seems to be compiled and is running correctly in command line window, but test cases won't run in Eclipse.
For example, when I try to run the Junit test case for ~/alpha/alpha-proc/src/main/java/org/neo4j/gds/spanningtree/KSpanningTreeProc.java, the test case ~/alpha/alpha-proc/src/test/java/org/neo4j/gds/KSpanningTreeProcTest.java, which I import to my Eclipse project to test, it just failed to load a test database with null pointer exception. Here's the stack trace, any idea?
I think it may be some misconfigurations of pom.xml, and put it in the end.
I import ~/alpha/alpha-algo/src/test/java/org/neo4j/gds/impl/spanningTree/PrimTest.java too, and it runs fine.

GDS version: 1.8.6
Neo4j version: 4.4.5
Operating system: Windows 10

java.lang.RuntimeException: Error starting Neo4j database server at D:\eclipse\workspace\OpenGDS\target\test data\org.neo4j.gds.KSpanningTreeProcTest\testb8a7cb238131887da6b7584838c57239\data\databases
	at org.neo4j.graphdb.facade.DatabaseManagementServiceFactory.startDatabaseServer(DatabaseManagementServiceFactory.java:228)
	at org.neo4j.graphdb.facade.DatabaseManagementServiceFactory.build(DatabaseManagementServiceFactory.java:181)
	at org.neo4j.test.TestDatabaseManagementServiceBuilder.newDatabaseManagementService(TestDatabaseManagementServiceBuilder.java:134)
	at org.neo4j.test.TestDatabaseManagementServiceBuilder.build(TestDatabaseManagementServiceBuilder.java:120)
	at org.neo4j.test.extension.DbmsSupportController.buildDbms(DbmsSupportController.java:163)
	at org.neo4j.test.extension.DbmsSupportController.startDbms(DbmsSupportController.java:99)
	at org.neo4j.test.extension.DbmsSupportController.startDbms(DbmsSupportController.java:87)
	at org.neo4j.test.extension.DbmsSupportExtension.beforeEach(DbmsSupportExtension.java:51)
	at org.junit.jupiter.engine.descriptor.TestMethodTestDescriptor.lambda$invokeBeforeEachCallbacks$1(TestMethodTestDescriptor.java:159)
	at org.junit.jupiter.engine.descriptor.TestMethodTestDescriptor.lambda$invokeBeforeMethodsOrCallbacksUntilExceptionOccurs$5(TestMethodTestDescriptor.java:195)
	at org.junit.platform.engine.support.hierarchical.ThrowableCollector.execute(ThrowableCollector.java:73)
	at org.junit.jupiter.engine.descriptor.TestMethodTestDescriptor.invokeBeforeMethodsOrCallbacksUntilExceptionOccurs(TestMethodTestDescriptor.java:195)
	at org.junit.jupiter.engine.descriptor.TestMethodTestDescriptor.invokeBeforeEachCallbacks(TestMethodTestDescriptor.java:158)
	at org.junit.jupiter.engine.descriptor.TestMethodTestDescriptor.execute(TestMethodTestDescriptor.java:125)
	at org.junit.jupiter.engine.descriptor.TestMethodTestDescriptor.execute(TestMethodTestDescriptor.java:65)
	at org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively$5(NodeTestTask.java:139)
	at org.junit.platform.engine.support.hierarchical.ThrowableCollector.execute(ThrowableCollector.java:73)
	at org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively$7(NodeTestTask.java:129)
	at org.junit.platform.engine.support.hierarchical.Node.around(Node.java:137)
	at org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively$8(NodeTestTask.java:127)
	at org.junit.platform.engine.support.hierarchical.ThrowableCollector.execute(ThrowableCollector.java:73)
	at org.junit.platform.engine.support.hierarchical.NodeTestTask.executeRecursively(NodeTestTask.java:126)
	at org.junit.platform.engine.support.hierarchical.NodeTestTask.execute(NodeTestTask.java:84)
	at java.base/java.util.ArrayList.forEach(ArrayList.java:1541)
	at org.junit.platform.engine.support.hierarchical.SameThreadHierarchicalTestExecutorService.invokeAll(SameThreadHierarchicalTestExecutorService.java:38)
	at org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively$5(NodeTestTask.java:143)
	at org.junit.platform.engine.support.hierarchical.ThrowableCollector.execute(ThrowableCollector.java:73)
	at org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively$7(NodeTestTask.java:129)
	at org.junit.platform.engine.support.hierarchical.Node.around(Node.java:137)
	at org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively$8(NodeTestTask.java:127)
	at org.junit.platform.engine.support.hierarchical.ThrowableCollector.execute(ThrowableCollector.java:73)
	at org.junit.platform.engine.support.hierarchical.NodeTestTask.executeRecursively(NodeTestTask.java:126)
	at org.junit.platform.engine.support.hierarchical.NodeTestTask.execute(NodeTestTask.java:84)
	at java.base/java.util.ArrayList.forEach(ArrayList.java:1541)
	at org.junit.platform.engine.support.hierarchical.SameThreadHierarchicalTestExecutorService.invokeAll(SameThreadHierarchicalTestExecutorService.java:38)
	at org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively$5(NodeTestTask.java:143)
	at org.junit.platform.engine.support.hierarchical.ThrowableCollector.execute(ThrowableCollector.java:73)
	at org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively$7(NodeTestTask.java:129)
	at org.junit.platform.engine.support.hierarchical.Node.around(Node.java:137)
	at org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively$8(NodeTestTask.java:127)
	at org.junit.platform.engine.support.hierarchical.ThrowableCollector.execute(ThrowableCollector.java:73)
	at org.junit.platform.engine.support.hierarchical.NodeTestTask.executeRecursively(NodeTestTask.java:126)
	at org.junit.platform.engine.support.hierarchical.NodeTestTask.execute(NodeTestTask.java:84)
	at org.junit.platform.engine.support.hierarchical.SameThreadHierarchicalTestExecutorService.submit(SameThreadHierarchicalTestExecutorService.java:32)
	at org.junit.platform.engine.support.hierarchical.HierarchicalTestExecutor.execute(HierarchicalTestExecutor.java:57)
	at org.junit.platform.engine.support.hierarchical.HierarchicalTestEngine.execute(HierarchicalTestEngine.java:51)
	at org.junit.platform.launcher.core.EngineExecutionOrchestrator.execute(EngineExecutionOrchestrator.java:108)
	at org.junit.platform.launcher.core.EngineExecutionOrchestrator.execute(EngineExecutionOrchestrator.java:88)
	at org.junit.platform.launcher.core.EngineExecutionOrchestrator.lambda$execute$0(EngineExecutionOrchestrator.java:54)
	at org.junit.platform.launcher.core.EngineExecutionOrchestrator.withInterceptedStreams(EngineExecutionOrchestrator.java:67)
	at org.junit.platform.launcher.core.EngineExecutionOrchestrator.execute(EngineExecutionOrchestrator.java:52)
	at org.junit.platform.launcher.core.DefaultLauncher.execute(DefaultLauncher.java:96)
	at org.junit.platform.launcher.core.DefaultLauncher.execute(DefaultLauncher.java:84)
	at org.eclipse.jdt.internal.junit5.runner.JUnit5TestReference.run(JUnit5TestReference.java:98)
	at org.eclipse.jdt.internal.junit.runner.TestExecution.run(TestExecution.java:41)
	at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:542)
	at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:770)
	at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run(RemoteTestRunner.java:464)
	at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main(RemoteTestRunner.java:210)
	Suppressed: java.lang.NullPointerException
		at org.neo4j.test.extension.DbmsSupportController.shutdown(DbmsSupportController.java:186)
		at org.neo4j.test.extension.DbmsSupportExtension.afterEach(DbmsSupportExtension.java:60)
		at org.junit.jupiter.engine.descriptor.TestMethodTestDescriptor.lambda$invokeAfterEachCallbacks$11(TestMethodTestDescriptor.java:253)
		at org.junit.jupiter.engine.descriptor.TestMethodTestDescriptor.lambda$invokeAllAfterMethodsOrCallbacks$12(TestMethodTestDescriptor.java:269)
		at org.junit.platform.engine.support.hierarchical.ThrowableCollector.execute(ThrowableCollector.java:73)
		at org.junit.jupiter.engine.descriptor.TestMethodTestDescriptor.lambda$invokeAllAfterMethodsOrCallbacks$13(TestMethodTestDescriptor.java:269)
		at java.base/java.util.ArrayList.forEach(ArrayList.java:1541)
		at org.junit.jupiter.engine.descriptor.TestMethodTestDescriptor.invokeAllAfterMethodsOrCallbacks(TestMethodTestDescriptor.java:268)
		at org.junit.jupiter.engine.descriptor.TestMethodTestDescriptor.invokeAfterEachCallbacks(TestMethodTestDescriptor.java:252)
		at org.junit.jupiter.engine.descriptor.TestMethodTestDescriptor.execute(TestMethodTestDescriptor.java:137)
		... 45 more
Caused by: org.neo4j.kernel.lifecycle.LifecycleException: Component 'org.neo4j.dbms.database.DefaultDatabaseInitializer@15cee630' was successfully initialized, but failed to start. Please see the attached cause exception "Receiver class org.neo4j.kernel.database.TestDatabaseIdRepository$RandomDatabaseIdRepository does not define or inherit an implementation of the resolved method abstract getByName(Lorg/neo4j/kernel/database/NormalizedDatabaseName;)Ljava/util/Optional; of interface org.neo4j.kernel.database.DatabaseIdRepository.".
	at org.neo4j.kernel.lifecycle.LifeSupport$LifecycleInstance.start(LifeSupport.java:463)
	at org.neo4j.kernel.lifecycle.LifeSupport.start(LifeSupport.java:110)
	at org.neo4j.graphdb.facade.DatabaseManagementServiceFactory.startDatabaseServer(DatabaseManagementServiceFactory.java:219)
	... 58 more
Caused by: java.lang.AbstractMethodError: Receiver class org.neo4j.kernel.database.TestDatabaseIdRepository$RandomDatabaseIdRepository does not define or inherit an implementation of the resolved method abstract getByName(Lorg/neo4j/kernel/database/NormalizedDatabaseName;)Ljava/util/Optional; of interface org.neo4j.kernel.database.DatabaseIdRepository.
	at org.neo4j.kernel.database.DatabaseIdRepository.getByName(DatabaseIdRepository.java:59)
	at org.neo4j.kernel.database.MapCachingDatabaseIdRepository.lambda$getByName$0(MapCachingDatabaseIdRepository.java:49)
	at java.base/java.util.concurrent.ConcurrentHashMap.computeIfAbsent(ConcurrentHashMap.java:1705)
	at org.neo4j.kernel.database.MapCachingDatabaseIdRepository.getByName(MapCachingDatabaseIdRepository.java:49)
	at org.neo4j.kernel.database.DatabaseIdRepository.getByName(DatabaseIdRepository.java:59)
	at org.neo4j.dbms.database.DefaultDatabaseManager.initialiseDefaultDatabase(DefaultDatabaseManager.java:51)
	at org.neo4j.dbms.database.DefaultDatabaseInitializer.start0(DefaultDatabaseInitializer.java:39)
	at org.neo4j.kernel.lifecycle.SafeLifecycle.transition(SafeLifecycle.java:124)
	at org.neo4j.kernel.lifecycle.SafeLifecycle.start(SafeLifecycle.java:138)
	at org.neo4j.kernel.lifecycle.LifeSupport$LifecycleInstance.start(LifeSupport.java:442)
	... 60 more

Here's my pom.xml for the maven project.

<project xmlns="http://maven.apache.org/POM/4.0.0"
	xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
	xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd">
	<modelVersion>4.0.0</modelVersion>
	<groupId>cn.jean.neo4j</groupId>
	<artifactId>gds-extend</artifactId>
	<version>0.0.1-SNAPSHOT</version>
	<name>Neo4j Spanning Arborescence</name>
	<description>Neo4j procedure for min &amp; K spanning arborescence of
		directed graph
	</description>

	<properties>
		<java.version>11</java.version>
		<maven.compiler.release>${java.version}</maven.compiler.release>

		<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
		<project.reporting.outputEncoding>UTF-8
		</project.reporting.outputEncoding>
		<neo4j.version>4.4.5</neo4j.version>
		<neo4j-java-driver.version>4.4.5</neo4j-java-driver.version>
		<junit-jupiter.version>5.8.2</junit-jupiter.version>
		<maven-shade-plugin.version>3.2.4</maven-shade-plugin.version>
		<maven-compiler-plugin.version>3.10.1</maven-compiler-plugin.version>
		<assertj.version>3.22.0</assertj.version>
		<maven-surefire-plugin.version>2.22.2</maven-surefire-plugin.version>
	</properties>

	<dependencies>
		<!-- This gives us the Procedure API our runtime code uses. We have a `provided` 
			scope on it, because when this is deployed in a Neo4j Instance, the API will 
			be provided by Neo4j. If you add non-Neo4j dependencies to this project, 
			their scope should normally be `compile` -->
		<dependency>
			<groupId>org.neo4j</groupId>
			<artifactId>neo4j</artifactId>
			<version>${neo4j.version}</version>
			<scope>provided</scope>
		</dependency>

		<dependency>
			<groupId>org.neo4j.gds</groupId>
			<artifactId>core</artifactId>
			<version>1.8.6</version>
			<scope>provided</scope>
		</dependency>

		<!-- Contains the basic algorithm infrastructure -->
		<dependency>
			<groupId>org.neo4j.gds</groupId>
			<artifactId>algo-common</artifactId>
			<version>1.8.6</version>
			<scope>provided</scope>
		</dependency>

		<!-- Contains the productized algorithms -->
		<dependency>
			<groupId>org.neo4j.gds</groupId>
			<artifactId>algo</artifactId>
			<version>1.8.6</version>
			<scope>provided</scope>
		</dependency>

		<!-- Contains some alpha algorithms -->
		<dependency>
			<groupId>org.neo4j.gds</groupId>
			<artifactId>alpha-algo</artifactId>
			<version>1.8.6</version>
			<scope>provided</scope>
		</dependency>

		<!-- Contains the basic procedure infrastructure -->
		<dependency>
			<groupId>org.neo4j.gds</groupId>
			<artifactId>proc-common</artifactId>
			<version>1.8.6</version>
			<scope>provided</scope>
		</dependency>

		<!-- Contains the productized algorithm procedures -->
		<dependency>
			<groupId>org.neo4j.gds</groupId>
			<artifactId>proc</artifactId>
			<version>1.8.6</version>
			<scope>provided</scope>
		</dependency>

		<!-- Contains some alpha algorithm procedures -->
		<dependency>
			<groupId>org.neo4j.gds</groupId>
			<artifactId>alpha-proc</artifactId>
			<version>1.8.6</version>
			<scope>provided</scope>
		</dependency>

		<!-- https://mvnrepository.com/artifact/org.neo4j.gds/test-utils -->
		<dependency>
			<groupId>org.neo4j.gds</groupId>
			<artifactId>test-utils</artifactId>
			<version>1.8.6</version>
			<scope>test</scope>
		</dependency>

		<!-- https://mvnrepository.com/artifact/org.immutables/value -->
		<dependency>
			<groupId>org.immutables</groupId>
			<artifactId>value</artifactId>
			<version>2.8.8</version>
			<scope>provided</scope>
		</dependency>

		<dependency>
			<groupId>org.realityforge.org.jetbrains.annotations</groupId>
			<artifactId>org.jetbrains.annotations</artifactId>
			<version>1.7.0</version>
			<scope>provided</scope>
		</dependency>

	</dependencies>

	<build>
		<plugins>
			<plugin>
				<artifactId>maven-compiler-plugin</artifactId>
				<version>${maven-compiler-plugin.version}</version>
			</plugin>
			<plugin>
				<artifactId>maven-surefire-plugin</artifactId>
				<version>${maven-surefire-plugin.version}</version>
			</plugin>
			<plugin>
				<!-- This generates a jar-file with our procedure code, plus any dependencies 
					marked as `compile` scope. This should then be deployed in the `plugins` 
					directory of each Neo4j instance in your deployment. After a restart, the 
					procedure is available for calling. -->
				<artifactId>maven-shade-plugin</artifactId>
				<version>${maven-shade-plugin.version}</version>
				<configuration>
					<createDependencyReducedPom>false</createDependencyReducedPom>
				</configuration>
				<executions>
					<execution>
						<phase>package</phase>
						<goals>
							<goal>shade</goal>
						</goals>
					</execution>
				</executions>
			</plugin>
		</plugins>
	</build>

</project>
Labels:
0 Kudos
Reply
1 ACCEPTED SOLUTION

Go to solution
Jean
Node Link
In response to Jean

‎04-21-2022 08:11 AM

It's a configuration problem, I address the problem by matching the neo4j version according to the version mentioned in build.gradle.

View solution in original post

0 Kudos
Reply
2 REPLIES 2

Go to solution
Jean
Node Link

‎04-21-2022 06:49 AM

gradle :proc-test:test --tests org.neo4j.gds.impl.spanningTree.KSpanningTreeProcTest

The command above is O.K., but failed in Eclipse Junit test.

0 Kudos
Reply

Go to solution
Jean
Node Link
In response to Jean

‎04-21-2022 08:11 AM

It's a configuration problem, I address the problem by matching the neo4j version according to the version mentioned in build.gradle.

0 Kudos
Reply
Nodes 2022
Nodes
NODES 2022, Neo4j Online Education Summit

All the sessions of the conference are now available online

Watch replays