Unit testing App engine - Eclipse - Maven - java

For Appengine testing using Eclipse-Maven I have this defined in the POM.xml
<!-- Appengine Testing -->
<dependency>
<groupId>com.google.appengine</groupId>
<artifactId>appengine-api-labs</artifactId>
<version>${appengine.version}</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>com.google.appengine</groupId>
<artifactId>appengine-testing</artifactId>
<version>${appengine.version}</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>com.google.appengine</groupId>
<artifactId>appengine-api-stubs</artifactId>
<version>${appengine.version}</version>
<scope>test</scope>
</dependency>
However, everytime I add this dependency, when my webapp is invoked, it throws this error:
java.lang.ClassCastException: com.google.appengine.tools.development.ApiProxyLocalImpl cannot be cast to com.google.appengine.tools.development.ApiProxyLocal
Although I can run JUnit and test my Appengine specific code, it is very painful that everytime I have to run the app I have to delete these dependencies and refresh everything.
Is there any workaround with this scenario?

I use the same POM as you (#xybrek), I solved this by doing a simple mvn clean gae:run, now it works from maven ...

Which version do you use? My POM doesn't contain appengine-api-labs. Maybe you can try without it:
<dependency>
<groupId>com.google.appengine</groupId>
<artifactId>appengine-api-stubs</artifactId>
<version>${gae.version}</version>
<type>jar</type>
<scope>test</scope>
</dependency>
<dependency>
<groupId>com.google.appengine</groupId>
<artifactId>appengine-testing</artifactId>
<version>${gae.version}</version>
<type>jar</type>
<scope>test</scope>
</dependency>

Related

JUnit 5 and Mockito

With Java 14 and JUnit 5, if I add mockito-junit-jupiter to my build, an error is thrown when trying to run mvn test even without using mockito in any tests. Wiithout mockito-junit-jupiter everything is okay. All dependencies are the latest versions except Maven.
The error thrown is
# Created at 2020-04-15T16:34:33.816
org.junit.platform.commons.JUnitException: TestEngine with ID 'junit-jupiter' failed to discover tests
at org.junit.platform.launcher.core.DefaultLauncher.discoverEngineRoot(DefaultLauncher.java:189)
...
Caused by: java.lang.NoClassDefFoundError: org/junit/jupiter/api/extension/ReflectiveInvocationContext
at org.junit.jupiter.engine.descriptor.ClassBasedTestDescriptor.<clinit>(ClassBasedTestDescriptor.java:81)
<!-- https://mvnrepository.com/artifact/org.junit.jupiter/junit-jupiter -->
<dependency>
<groupId>org.junit.jupiter</groupId>
<artifactId>junit-jupiter</artifactId>
<version>5.6.2</version>
</dependency>
<!-- https://mvnrepository.com/artifact/org.junit.vintage/junit-vintage-engine -->
<dependency>
<groupId>org.junit.vintage</groupId>
<artifactId>junit-vintage-engine</artifactId>
<version>5.6.2</version>
</dependency>
<!-- https://mvnrepository.com/artifact/org.junit.platform/junit-platform-commons -->
<dependency>
<groupId>org.junit.platform</groupId>
<artifactId>junit-platform-commons</artifactId>
<version>1.6.2</version>
</dependency>
<!-- https://mvnrepository.com/artifact/org.junit.platform/junit-platform-suite-api -->
<dependency>
<groupId>org.junit.platform</groupId>
<artifactId>junit-platform-suite-api</artifactId>
<version>1.6.2</version>
</dependency>
<!-- https://mvnrepository.com/artifact/org.junit.platform/junit-platform-launcher -->
<dependency>
<groupId>org.junit.platform</groupId>
<artifactId>junit-platform-launcher</artifactId>
<version>1.6.2</version>
</dependency>
<!-- https://mvnrepository.com/artifact/org.junit.platform/junit-platform-runner -->
<dependency>
<groupId>org.junit.platform</groupId>
<artifactId>junit-platform-runner</artifactId>
<version>1.6.2</version>
</dependency>
<!-- https://mvnrepository.com/artifact/org.mockito/mockito-junit-jupiter -->
<dependency>
<groupId>org.mockito</groupId>
<artifactId>mockito-junit-jupiter</artifactId>
<version>3.3.3</version>
</dependency>
The order of Maven dependencies seems to be important when mixing JUnit 5 and Mockito. The Mockito dependencies MUST come after the ones for JUnit 5. Maybe it is only the one for mockito-junit-jupiter, but I try to group them toegether.

Spring boot 2.2 activemq jetty conflict

I am trying to upgrade Spring boot to the version 2.2 together with jetty starter.
I get these errors due to jetty version conflict
The following method did not exist:
'org.eclipse.jetty.websocket.server.NativeWebSocketConfiguration org.eclipse.jetty.websocket.server.NativeWebSocketServletContainerInitializer.initialize(org.eclipse.jetty.servlet.ServletContextHandler)'
The method's class, org.eclipse.jetty.websocket.server.NativeWebSocketServletContainerInitializer, is available from the following locations:
jar:file:/some-dir/target/p3.0.166-SNAPSHOT.war!/WEB-INF/lib/jetty-all-9.4.19.v20190610-uber.jar!/org/eclipse/jetty/websocket/server/NativeWebSocketServletContainerInitializer.class
jar:file:/some-dir/target/p3.0.166-SNAPSHOT.war!/WEB-INF/lib/websocket-server-9.4.20.v20190813.jar!/org/eclipse/jetty/websocket/server/NativeWebSocketServletContainerInitializer.class
I have activemq dependency which brings in it's own jetty-all versioned 9.4.19 dependency which is in conflict with spring-boot 2.2 jetty (9.4.20)
And part of my pom.xml is:
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
<exclusions>
<exclusion>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-tomcat</artifactId>
</exclusion>
</exclusions>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-jetty</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-test</artifactId>
<scope>test</scope>
</dependency>
<!--
Jsp-api isn't standard in spring boot
-->
<dependency>
<groupId>javax.servlet.jsp</groupId>
<artifactId>javax.servlet.jsp-api</artifactId>
<version>${jsp.version}</version>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>javax.servlet</groupId>
<artifactId>javax.servlet-api</artifactId>
<scope>provided</scope>
</dependency>
<!-- artefacts enable JSP running in spring-boot -->
<dependency>
<groupId>javax.servlet</groupId>
<artifactId>jstl</artifactId>
</dependency>
<dependency>
<groupId>org.eclipse.jetty</groupId>
<artifactId>apache-jsp</artifactId>
</dependency>
<dependency>
<groupId>org.eclipse.jetty</groupId>
<artifactId>apache-jstl</artifactId>
</dependency>
<!--
Used to be a single artifact.
<groupId>javax.servlet</groupId>
<artifactId>jstl</artifactId>
<version>1.2</version>
Newer versions splits the interface and implementation.
This suggests to use a Glassfish implementation.
https://www.andygibson.net/blog/quickbyte/jstl-missing-from-maven-repositories/
The one we used had an Apache implementation, so going with that.
https://stackoverflow.com/a/24444342
-->
<dependency>
<groupId>org.apache.taglibs</groupId>
<artifactId>taglibs-standard-spec</artifactId>
<version>${taglibs.version}</version>
</dependency>
<dependency>
<groupId>org.apache.taglibs</groupId>
<artifactId>taglibs-standard-impl</artifactId>
<version>${taglibs.version}</version>
</dependency>
<!-- Unit test dependencies -->
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.easytesting</groupId>
<artifactId>fest-assert</artifactId>
<version>1.4</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.mockito</groupId>
<artifactId>mockito-core</artifactId>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-test</artifactId>
<scope>test</scope>
</dependency>
<!-- html compressing is used by hrmanager in the JSP -->
<dependency>
<groupId>com.googlecode.htmlcompressor</groupId>
<artifactId>htmlcompressor</artifactId>
<version>1.5.2</version>
</dependency>
<!-- ApacheMQ HTTP jarfile set -->
<dependency>
<groupId>org.apache.activemq</groupId>
<artifactId>activemq-client</artifactId>
</dependency>
<dependency>
<groupId>org.apache.activemq</groupId>
<artifactId>activemq-http</artifactId>
</dependency>
</dependencies>
Any idea how I can fix this?
ActiveMQ is wrong here.
jetty-all is not meant to be used as a dependency in a project.
See https://www.eclipse.org/lists/jetty-users/msg06030.html
It only exists as a command line tool for the documentation to educate folks about basic featureset of Jetty.
It does not, and cannot, contain all of Jetty.
A single artifact with everything that Jetty produces is impossible.
As #Shilan pointed out, excluding jetty-all is the correct solution.
The use of the other appropriate dependencies (by spring-boot-starter-jetty it seems) will already pull in the correct Jetty transitive dependencies that you need.
You can use $ mvn dependency:tree from the command line to see this (before and after excluding jetty-all)
You might want to run one of the duplicate class finder maven plugins to see what other duplicate classes you have going on and correct for those as well.
https://github.com/ning/maven-duplicate-finder-plugin
https://github.com/basepom/duplicate-finder-maven-plugin

Arquillian and Wildfly: Unable to collect/resolve dependency

I'm trying to write a simple Widlfly container test using Arquillian framework. I have followed the guide from Wildfly container testing guide.
The resulting pom.xml looks like follows.
pom.xml
<dependencyManagement>
<dependencies>
<dependency>
<groupId>org.wildfly.swarm</groupId>
<artifactId>bom-all</artifactId>
<version>${version.wildfly-swarm}</version>
<type>pom</type>
<scope>import</scope>
</dependency>
</dependencies>
</dependencyManagement>
<dependencies>
<!-- https://mvnrepository.com/artifact/org.hibernate.javax.persistence/hibernate-jpa-2.1-api -->
<dependency>
<groupId>org.hibernate.javax.persistence</groupId>
<artifactId>hibernate-jpa-2.1-api</artifactId>
<version>1.0.2.Final</version>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>com.mycompany.libs</groupId>
<artifactId>3ds-commons</artifactId>
<version>${project.version}</version>
</dependency>
<dependency>
<groupId>javax</groupId>
<artifactId>javaee-api</artifactId>
<version>8.0</version>
<scope>provided</scope>
</dependency>
<!-- https://mvnrepository.com/artifact/com.mysema.querydsl/querydsl-apt -->
<dependency>
<groupId>com.mysema.querydsl</groupId>
<artifactId>querydsl-apt</artifactId>
<version>3.7.4</version>
</dependency>
<!-- https://mvnrepository.com/artifact/com.mysema.querydsl/querydsl-jpa -->
<dependency>
<groupId>com.mysema.querydsl</groupId>
<artifactId>querydsl-jpa</artifactId>
<version>3.7.4</version>
</dependency>
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>4.12</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.wildfly.swarm</groupId>
<artifactId>jaxrs</artifactId>
<version>${version.wildfly-swarm}</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.wildfly.swarm</groupId>
<artifactId>datasources</artifactId>
<version>${version.wildfly-swarm}</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.wildfly.swarm</groupId>
<artifactId>arquillian-adapter</artifactId>
<version>${version.wildfly-swarm}</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.jboss.arquillian.junit</groupId>
<artifactId>arquillian-junit-container</artifactId>
<version>1.4.0.Final</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.wildfly.swarm</groupId>
<artifactId>arquillian</artifactId>
<version>${version.wildfly-swarm}</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.jboss.arquillian.core</groupId>
<artifactId>arquillian-core-api</artifactId>
<version>1.4.0.Final</version>
<scope>test</scope>
</dependency>
</dependencies>
I was following the guide and wrote the JUnit test as follows.
InContainerTest.java
#RunWith(Arquillian.class)
#DefaultDeployment(type = DefaultDeployment.Type.JAR)
public class InContainerTest {
#ArquillianResource
InitialContext context;
#Test
public void testDataSourceIsBound() throws Exception {
DataSource ds = (DataSource) context.lookup("java:jboss/datasources/MyDS");
assertNotNull(ds);
}
}
Whenever I try to run mvn clean install on this code, I'm getting the following error:
org.jboss.arquillian.container.spi.client.container.DeploymentException: Unable to collect/resolve dependency tree for a resolution due to: Failed to collect dependencies at my.company.libs:my-commons:jar:0.0.1-SNAPSHOT, caused by: Server returned HTTP response code: 409 for URL: http://repo.gradle.org/gradle/libs-releases-local/com/mycompany/libs/my-commons/0.0.1-SNAPSHOT/my-commons-0.0.1-SNAPSHOT.pom
Package my-commons comes from the internal repository of my company, but we have Maven's settings.xml configured for it, and it normally works in all other cases.
Any help on this would be highly appreciated.
Please check if the "my-commons" actually contains snapshots or only release artifacts. check if there is some other repo for snapshots and adapt you maven configuration accordingly. See here for reference how to do that: https://maven.apache.org/settings.html#Repositories

eclipse : Missing artifact org.apache.hbase:hbase:jar:1.1.3

I'm new on hbase, and trying to connect hbase from remote application.
But stuck at begin.
I added maven dependency on eclipse(Luna, JavaEE) however eclipse alerts a error Missing artifact org.apache.hbase:hbase:jar:1.1.3
How can I fix this?
here is dependencies
<dependencies>
<dependency>
<groupId>org.apache.hadoop</groupId>
<artifactId>hadoop-core</artifactId>
<version>1.2.1</version>
</dependency>
<dependency>
<groupId>org.apache.hbase</groupId>
<artifactId>hbase</artifactId>
<version>1.1.3</version>
</dependency>
<dependency>
<groupId>io.netty</groupId>
<artifactId>netty-all</artifactId>
<version>4.1.0.CR3</version>
</dependency>
<dependency>
<groupId>org.projectlombok</groupId>
<artifactId>lombok</artifactId>
<version>1.16.8</version>
</dependency>
<dependency>
<groupId>kr.co.vcnc.haeinsa</groupId>
<artifactId>haeinsa</artifactId>
<version>1.0.5</version>
</dependency>
</dependencies>
Define your dependecy as type pom.
<dependency>
<groupId>org.apache.hbase</groupId>
<artifactId>hbase</artifactId>
<version>1.1.3</version>
<type>pom</type>
</dependency>
You can try download the jar packageorg.apache.hbase:hbase:jar:1.1.3,
and put it into your local repository.

Drools hello world maven dependencies

I'm trying to run very simple application using Drools and for a couple of hours now can't set up pom.xml with all dependencies.
Here is how it looks now:
<dependencies>
<!-- Drools engine -->
<dependency>
<groupId>org.drools</groupId>
<artifactId>drools-core</artifactId>
<version>5.4.0.Final</version>
</dependency>
<dependency>
<groupId>org.drools</groupId>
<artifactId>drools-compiler</artifactId>
<version>5.4.0.Final</version>
</dependency>
<!-- Test -->
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>4.7</version>
<scope>test</scope>
</dependency>
</dependencies>
Just like in
https://community.jboss.org/wiki/DroolsMaven
But what I get:
org.drools.RuntimeDroolsException: Unable to load dialect 'org.drools.rule.builder.dialect.java.JavaDialectConfiguration:java:org.drools.rule.builder.dialect.java.JavaDialectConfiguration'
at org.drools.compiler.PackageBuilderConfiguration.addDialect(PackageBuilderConfiguration.java:313)
at org.drools.compiler.PackageBuilderConfiguration.buildDialectConfigurationMap(PackageBuilderConfiguration.java:298)
at org.drools.compiler.PackageBuilderConfiguration.init(PackageBuilderConfiguration.java:187)
at org.drools.compiler.PackageBuilderConfiguration.<init>(PackageBuilderConfiguration.java:160)
at org.drools.builder.impl.KnowledgeBuilderFactoryServiceImpl.newKnowledgeBuilderConfiguration(KnowledgeBuilderFactoryServiceImpl.java:26)
at org.drools.builder.KnowledgeBuilderFactory.newKnowledgeBuilderConfiguration(KnowledgeBuilderFactory.java:85)
yada-yada-yada
Caused by: java.lang.RuntimeException: The Janino jar is not in the classpath
If I try to add Janino I get another exception about some missing classes(I don't think I should add Janino here anyway as it should be a dependency of something else).
Do I miss anything in my pom?
Thanks!
Leonty
By default, drools-compiler uses the eclipse compiler (JavaDialectConfiguration.ECLIPSE) for the java dialect which is a transitive dependency:
<dependency>
<groupId>org.eclipse.jdt.core.compiler</groupId>
<artifactId>ecj</artifactId>
</dependency>
However, if you prefer the janino compiler(JavaDialectConfiguration.JANINO), you need to add the janino dependency yourself because it is an optional transitive dependency:
<dependency>
<groupId>org.codehaus.janino</groupId>
<artifactId>janino</artifactId>
<optional>true</optional>
</dependency>
Look at the droolsjbpm-parent pom to find out which version to use.
Turned out just the right version of Janino is needed for Drools 5.4.0 Final: 2.5.16
Newer versions luck class used in Drools.
<dependencies>
<!-- Drools engine -->
<dependency>
<groupId>org.drools</groupId>
<artifactId>drools-core</artifactId>
<version>5.4.0.Final</version>
</dependency>
<dependency>
<groupId>org.drools</groupId>
<artifactId>drools-compiler</artifactId>
<version>5.4.0.Final</version>
</dependency>
<dependency>
<groupId>org.codehaus.janino</groupId>
<artifactId>janino</artifactId>
<version>2.5.16</version>
</dependency>
<!-- Test -->
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>4.7</version>
<scope>test</scope>
</dependency>
</dependencies>

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