maven dependency istio-java-api 1.1.0 not load in project External Libraries

[lianghuiyuan]

This dependency is seems not work? It can not load in project External Libraries.

<!-- https://mvnrepository.com/artifact/me.snowdrop/istio-java-api -->
<dependency>
    <groupId>me.snowdrop</groupId>
    <artifactId>istio-java-api</artifactId>
    <version>1.1.0</version>
    <type>pom</type>
</dependency>

[geoand]

Can you try to remove <type>pom</type> and see what happens?

[lianghuiyuan]

I have removed <type>pom</type> , It can not load in project External Libraries either.

[metacosm]

@lianghuiyuan is there a way for us to reproduce the issue like a sample project we could look at?

[lianghuiyuan]

@metacosm Thank you for help! I new created a Springboot project, and add istio-java-api dependency in the pom.xml It can not load in project External Libraries. The example project: https://github.com/lianghuiyuan/springworld.git below is the project pom.xml:

<?xml version="1.0" encoding="UTF-8"?>
<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 http://maven.apache.org/xsd/maven-4.0.0.xsd">
    <modelVersion>4.0.0</modelVersion>
    <parent>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-parent</artifactId>
        <version>2.1.6.RELEASE</version>
        <relativePath/> <!-- lookup parent from repository -->
    </parent>
    <groupId>com.lhy.spring</groupId>
    <artifactId>springworld</artifactId>
    <version>0.0.1-SNAPSHOT</version>
    <name>springworld</name>
    <description>Demo project for Spring Boot</description>

    <properties>
        <java.version>1.8</java.version>
    </properties>

    <dependencies>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter</artifactId>
        </dependency>

        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-test</artifactId>
            <scope>test</scope>
        </dependency>

        <!-- https://mvnrepository.com/artifact/me.snowdrop/istio-java-api -->
        <dependency>
            <groupId>me.snowdrop</groupId>
            <artifactId>istio-java-api</artifactId>
            <version>1.1.0</version>
            <type>pom</type>
        </dependency>

    </dependencies>

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

</project>

[metacosm]

Thanks, I will take a look soon.

[lianghuiyuan]

@metacosm Thanks. is my pom.xml error or something ? I tried different ways, but still can not load in project External Libraries.

[metacosm]

@lianghuiyuan actually, what you want to be using is the istio-client artifact most likely, not the istio-java-api one which is the parent POM and therefore doesn't contain any code by itself. Sorry I missed it earlier. Let me know if that fixes your issue.

[lianghuiyuan]

Thank you! @metacosm Sorry for late reply. Actually, I need both istio-client and kubernetes-client artifacts as I need to create/update/delete/list Gateway, VirtualService, DestinationRule and ServiceEntry. I am not sure it is the best way, but it works. Follow is the configuration in maven:

<!-- https://mvnrepository.com/artifact/me.snowdrop/istio-client -->
        <dependency>
            <groupId>me.snowdrop</groupId>
            <artifactId>istio-client</artifactId>
            <version>1.1.0</version>
        </dependency>
        <dependency>
            <groupId>io.fabric8</groupId>
            <artifactId>kubernetes-client</artifactId>
            <version>${kubernetes-client.version}</version>
        </dependency>

But now another problem came out: I config the IstioClient failed It seems the same like the issue: #https://github.com/fabric8io/kubernetes-client/issues/1592

I config the IstioClient with following code:

    Config config = new ConfigBuilder()
            .withCaCertData(k8s_cluster_clientCertData)
            .withClientKeyData(k8s_cluster_clientKeyData)
            .withClientCertData(k8s_cluster_clientCertData)
            .withMasterUrl(k8s_cluster_url)
            .build();
    IstioClient istioClient = new DefaultIstioClient(config);

It comes out the follow error: NullPointerException:

[2019-07-30 00:15:23,834][ERROR:restartedMain][SpringApplication.java:858] Application run failed
org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'gatewayController' defined in file [api/controller/GatewayController.class]: Instantiation of bean failed; nested exception is org.springframework.beans.BeanInstantiationException: Failed to instantiate [com.authine.lateinos.kube.api.controller.GatewayController]: Constructor threw exception; nested exception is java.lang.NullPointerException
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.instantiateBean(AbstractAutowireCapableBeanFactory.java:1303)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBeanInstance(AbstractAutowireCapableBeanFactory.java:1197)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:555)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:515)
    at org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean$0(AbstractBeanFactory.java:320)
    at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:222)
    at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:318)
    at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:199)
    at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:843)
    at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:877)
    at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:549)
    at org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.refresh(ServletWebServerApplicationContext.java:142)
    at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:775)
    at org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:397)
    at org.springframework.boot.SpringApplication.run(SpringApplication.java:316)
    at org.springframework.boot.SpringApplication.run(SpringApplication.java:1260)
    at org.springframework.boot.SpringApplication.run(SpringApplication.java:1248)
    at com.authine.lateinos.kube.api.Application.main(Application.java:23)
    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.springframework.boot.devtools.restart.RestartLauncher.run(RestartLauncher.java:49)
Caused by: org.springframework.beans.BeanInstantiationException: Failed to instantiate [com.authine.lateinos.kube.api.controller.GatewayController]: Constructor threw exception; nested exception is java.lang.NullPointerException
    at org.springframework.beans.BeanUtils.instantiateClass(BeanUtils.java:184)
    at org.springframework.beans.factory.support.SimpleInstantiationStrategy.instantiate(SimpleInstantiationStrategy.java:87)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.instantiateBean(AbstractAutowireCapableBeanFactory.java:1295)
    ... 22 more
Caused by: java.lang.NullPointerException
    at io.fabric8.kubernetes.client.Config.<init>(Config.java:267)
    at io.fabric8.kubernetes.client.ConfigBuilder.build(ConfigBuilder.java:132)
    at com.authine.lateinos.kube.api.controller.GatewayController.<init>(GatewayController.java:47)
    at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
    at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62)
    at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
    at java.lang.reflect.Constructor.newInstance(Constructor.java:423)
    at org.springframework.beans.BeanUtils.instantiateClass(BeanUtils.java:172)

[lianghuiyuan]

OK, I fixed the problem.

• To Config the Client as follow two ways:

      System.setProperty(Config.KUBERNETES_MASTER_SYSTEM_PROPERTY, k8s_cluster_url);
      System.setProperty(Config.KUBERNETES_CA_CERTIFICATE_DATA_SYSTEM_PROPERTY, k8s_cluster_authData);
      System.setProperty(Config.KUBERNETES_CLIENT_KEY_DATA_SYSTEM_PROPERTY, k8s_cluster_clientKeyData);
      System.setProperty(Config.KUBERNETES_CLIENT_CERTIFICATE_DATA_SYSTEM_PROPERTY, k8s_cluster_clientCertData);
      Config config = new ConfigBuilder().build();
      istioClient = new DefaultIstioClient(config);

  Or

      istioClient = new DefaultIstioClient(new ConfigBuilder()
          .withTrustCerts(true)
          .withMasterUrl(k8s_cluster_url)
          .withClientKeyData(k8s_cluster_clientKeyData)
          .withClientCertData(k8s_cluster_clientCertData)
          .withOauthToken(k8s_cluster_authData)
          .build());

• the artifacts in pom.xml are:

              <dependency>
          <groupId>me.snowdrop</groupId>
          <artifactId>istio-client</artifactId>
          <version>1.1.0</version>
      </dependency>
      <dependency>
          <groupId>io.fabric8</groupId>
          <artifactId>kubernetes-client</artifactId>
          <version>${kubernetes-client.version}</version>
      </dependency>