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问密钥披风和RESTEasy客户端: ClassNotFoundException: ClassNotFoundException
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Stack Overflow用户

提问于 2022-05-17 21:28:57

回答 1查看 992关注 0票数 0

我需要向keycloak (基于WildFly的发行版)添加一个WildFly客户端。

我通过扩展org.keycloak.broker.provider.AbstractIdentityProviderMapper

I在构造函数

中定义以下代码创建了一个新的类

Client client = ClientBuilder.newBuilder().build();
ClientWebTarget target = (ClientWebTarget) client.target(UriBuilder.fromPath(URL_PATH));
CustomFetcher fetcher = target.proxy(CustomFetcher.class);

我将类添加到src/main/resources/META-INF/services/org.keycloak.broker.provider.IdentityProviderMapper中

当我将jar复制到keycloak的standalone/deployments目录时，我得到

20:55:01,522 ERROR [org.jboss.msc.service.fail] (MSC service thread 1-2) MSC000001: Failed to start service jboss.deployment.unit."keycloak-user-mapper-0.0.1-SNAPSHOT.jar".POST_MODULE: org.jboss.msc.service.StartException in service jboss.deployment.unit."keycloak-user-mapper-0.0.1-SNAPSHOT.jar".POST_MODULE: WFLYSRV0153: Failed to process phase POST_MODULE of deployment "keycloak-user-mapper-0.0.1-SNAPSHOT.jar"
        at org.jboss.as.server@18.0.4.Final//org.jboss.as.server.deployment.DeploymentUnitPhaseService.start(DeploymentUnitPhaseService.java:189)
        at org.jboss.msc@1.4.13.Final//org.jboss.msc.service.ServiceControllerImpl$StartTask.startService(ServiceControllerImpl.java:1739)
        at org.jboss.msc@1.4.13.Final//org.jboss.msc.service.ServiceControllerImpl$StartTask.execute(ServiceControllerImpl.java:1701)
        at org.jboss.msc@1.4.13.Final//org.jboss.msc.service.ServiceControllerImpl$ControllerTask.run(ServiceControllerImpl.java:1559)
        at org.jboss.threads@2.4.0.Final//org.jboss.threads.ContextClassLoaderSavingRunnable.run(ContextClassLoaderSavingRunnable.java:35)
        at org.jboss.threads@2.4.0.Final//org.jboss.threads.EnhancedQueueExecutor.safeRun(EnhancedQueueExecutor.java:1990)
        at org.jboss.threads@2.4.0.Final//org.jboss.threads.EnhancedQueueExecutor$ThreadBody.doRunTask(EnhancedQueueExecutor.java:1486)
        at org.jboss.threads@2.4.0.Final//org.jboss.threads.EnhancedQueueExecutor$ThreadBody.run(EnhancedQueueExecutor.java:1377)
        at java.base/java.lang.Thread.run(Thread.java:829)
Caused by: java.util.ServiceConfigurationError: org.keycloak.broker.provider.IdentityProviderMapper: Provider org.myorg.UserAttributeMapper could not be instantiated
        at java.base/java.util.ServiceLoader.fail(ServiceLoader.java:582)
        at java.base/java.util.ServiceLoader$ProviderImpl.newInstance(ServiceLoader.java:804)
        at java.base/java.util.ServiceLoader$ProviderImpl.get(ServiceLoader.java:722)
        at java.base/java.util.ServiceLoader$3.next(ServiceLoader.java:1395)
        at org.keycloak.keycloak-services@17.0.0//org.keycloak.provider.DefaultProviderLoader.load(DefaultProviderLoader.java:60)
        at org.keycloak.keycloak-services@17.0.0//org.keycloak.provider.ProviderManager.load(ProviderManager.java:94)
        at org.keycloak.keycloak-services@17.0.0//org.keycloak.services.DefaultKeycloakSessionFactory.loadFactories(DefaultKeycloakSessionFactory.java:294)
        at org.keycloak.keycloak-services@17.0.0//org.keycloak.services.DefaultKeycloakSessionFactory.deploy(DefaultKeycloakSessionFactory.java:154)
        at org.keycloak.keycloak-services@17.0.0//org.keycloak.provider.ProviderManagerRegistry.deploy(ProviderManagerRegistry.java:42)
        at org.keycloak.keycloak-wildfly-server-subsystem@17.0.0//org.keycloak.subsystem.server.extension.KeycloakProviderDeploymentProcessor.deploy(KeycloakProviderDeploymentProcessor.java:58)
        at org.jboss.as.server@18.0.4.Final//org.jboss.as.server.deployment.DeploymentUnitPhaseService.start(DeploymentUnitPhaseService.java:182)
        ... 8 more
Caused by: java.lang.RuntimeException: java.lang.ClassNotFoundException: org.jboss.resteasy.client.jaxrs.internal.proxy.ProxyBuilderImpl from [Module "org.jboss.as.server" version 18.0.4.Final from local module loader @66c92293 (finder: local module finder @332796d3 (roots: /opt/jboss/keycloak/modules,/opt/jboss/keycloak/modules/system/layers/keycloak,/opt/jboss/keycloak/modules/system/layers/base))]
        at org.jboss.resteasy.resteasy-client-api@4.7.4.Final//org.jboss.resteasy.client.jaxrs.ProxyBuilder.builder(ProxyBuilder.java:41)
        at org.jboss.resteasy.resteasy-client@4.7.4.Final//org.jboss.resteasy.client.jaxrs.internal.ClientWebTarget.createProxyBuilder(ClientWebTarget.java:107)
        at org.jboss.resteasy.resteasy-client@4.7.4.Final//org.jboss.resteasy.client.jaxrs.internal.ClientWebTarget.proxy(ClientWebTarget.java:94)
        at deployment.keycloak-user-mapper-0.0.1-SNAPSHOT.jar//org.myorg.UserAttributeMapper.<init>(UserAttributeMapper.java:55)
        at java.base/jdk.internal.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
        at java.base/jdk.internal.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62)
        at java.base/jdk.internal.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
        at java.base/java.lang.reflect.Constructor.newInstance(Constructor.java:490)
        at java.base/java.util.ServiceLoader$ProviderImpl.newInstance(ServiceLoader.java:780)
        ... 17 more
Caused by: java.lang.ClassNotFoundException: org.jboss.resteasy.client.jaxrs.internal.proxy.ProxyBuilderImpl from [Module "org.jboss.as.server" version 18.0.4.Final from local module loader @66c92293 (finder: local module finder @332796d3 (roots: /opt/jboss/keycloak/modules,/opt/jboss/keycloak/modules/system/layers/keycloak,/opt/jboss/keycloak/modules/system/layers/base))]
        at org.jboss.modules.ModuleClassLoader.findClass(ModuleClassLoader.java:200)
        at org.jboss.modules.ConcurrentClassLoader.performLoadClassUnchecked(ConcurrentClassLoader.java:410)
        at org.jboss.modules.ConcurrentClassLoader.performLoadClass(ConcurrentClassLoader.java:398)
        at org.jboss.modules.ConcurrentClassLoader.loadClass(ConcurrentClassLoader.java:116)
        at org.jboss.resteasy.resteasy-client-api@4.7.4.Final//org.jboss.resteasy.client.jaxrs.ProxyBuilder.builder(ProxyBuilder.java:35)
        ... 25 more

显然，Wildfly自己的org.jboss.as.server模块没有正确配置，因此它的CLASSPATH上没有org.jboss.resteasy.client.jaxrs.internal.proxy.ProxyBuilderImpl，但是它存在于my的CLASSPATH上，因为我可以成功地执行

Class.forName("org.jboss.resteasy.client.jaxrs.internal.proxy.ProxyBuilderImpl")

在我的类构造函数中。

解决方案----我在modules/system/layers/base/org/jboss/as/server/main/module.xml中添加了<module name="org.jboss.resteasy.resteasy-client"/>，它现在工作了，但是它似乎不是一个好的解决方案，我如何处理这个配置？

UPDATE我怀疑问题可能是热重新部署的问题，如果我首先将jar复制到keycloak，然后启动keycloak，则CLASSPATH不存在任何问题。但是，如果在运行jar时将keycloak复制到standalone/deployments中，则会抛出ClassNotFoundException。我试过keycloak-17.0.0.zip，keycloak-17.0.1.zip，keycloak-18.0.0.zip (基于WildFly)

这是一个复制问题的脚本。引用它时：

bash script.sh [17.0.0 | 17.0.1 | 18.0.0]

要将jar部署到本地keycloak (如果以前没有下载，脚本将自动下载keycloak的zip存档)。

(*)方括号中的参数是可选的，默认版本是18.0.0

#! /bin/bash

set -x

mkdir -p so72280865 && cd so72280865 || {
    echo "Unable to create a working directory"
    exit 1
}

cat <<EOF > pom.xml
<?xml version="1.0" encoding="UTF-8" standalone="no"?>
<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>

    <groupId>org.myorg</groupId>
    <artifactId>keycloak-so-demo</artifactId>
    <version>0.0.1-SNAPSHOT</version>

    <properties>
        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
        <maven.compiler.source>11</maven.compiler.source>
        <maven.compiler.target>11</maven.compiler.target>
    </properties>

    <dependencyManagement>
        <dependencies>
            <dependency>
                <groupId>org.keycloak</groupId>
                <artifactId>keycloak-parent</artifactId>
                <version>17.0.1</version>
                <type>pom</type>
                <scope>import</scope>
            </dependency>
        </dependencies>
    </dependencyManagement>

    <dependencies>
        <dependency>
            <groupId>org.keycloak</groupId>
            <artifactId>keycloak-core</artifactId>
            <scope>provided</scope>
        </dependency>
        <dependency>
            <groupId>org.keycloak</groupId>
            <artifactId>keycloak-server-spi</artifactId>
            <scope>provided</scope>
        </dependency>
        <dependency>
            <groupId>org.keycloak</groupId>
            <artifactId>keycloak-server-spi-private</artifactId>
            <scope>provided</scope>
        </dependency>
        <dependency>
            <groupId>org.keycloak</groupId>
            <artifactId>keycloak-services</artifactId>
            <scope>provided</scope>
        </dependency>
        <dependency>
            <groupId>org.jboss.resteasy</groupId>
            <artifactId>resteasy-jaxrs</artifactId>
            <scope>provided</scope>
        </dependency>
        <dependency>
            <groupId>org.jboss.resteasy</groupId>
            <artifactId>resteasy-client</artifactId>
            <scope>provided</scope>
        </dependency>
        <dependency>
            <groupId>org.jboss.resteasy</groupId>
            <artifactId>resteasy-jackson2-provider</artifactId>
            <scope>provided</scope>
        </dependency>
    </dependencies>

</project>
EOF

mkdir -p src/main/java/org/myorg/

cat <<EOF > src/main/java/org/myorg/App.java
package org.myorg;

import org.jboss.resteasy.client.jaxrs.internal.ClientWebTarget;
import org.keycloak.broker.provider.AbstractIdentityProviderMapper;
import org.keycloak.provider.ProviderConfigProperty;

import javax.ws.rs.GET;
import javax.ws.rs.Path;

import javax.ws.rs.client.Client;
import javax.ws.rs.client.ClientBuilder;
import javax.ws.rs.core.UriBuilder;
import java.util.Collections;
import java.util.List;

public class App extends AbstractIdentityProviderMapper {

    private static final String URL_PATH = "https://api.myip.com";
    private final CustomFetcher fetcher;

    public static final String[] COMPATIBLE_PROVIDERS = {ANY_PROVIDER};

    protected static final List<ProviderConfigProperty> configProperties = Collections.emptyList();

    public App() {
        final Client client = ClientBuilder.newBuilder()
                .register(new org.jboss.resteasy.plugins.providers.jackson.ResteasyJackson2Provider())
                .build();
        ClientWebTarget target = (ClientWebTarget) client.target(UriBuilder.fromPath(URL_PATH));
        fetcher = target.proxy(CustomFetcher.class);
    System.out.println(fetcher.get().toString());
    }

    @Path("/")
    public interface CustomFetcher {
        @GET String get();
    }

    @Override
    public String[] getCompatibleProviders() {
        return COMPATIBLE_PROVIDERS;
    }

    @Override
    public String getDisplayCategory() {
        return "Attribute Importer";
    }

    @Override
    public String getDisplayType() {
        return "Custom Fetcher";
    }

    @Override
    public String getHelpText() {
        return "Custom Fetcher";
    }

    @Override
    public List<ProviderConfigProperty> getConfigProperties() {
        return configProperties;
    }

    @Override
    public String getId() {
        return "custom-fetcher-idp-mapper";
    }
}
EOF

mkdir -p src/main/resources/META-INF/services
cat <<EOF > src/main/resources/META-INF/services/org.keycloak.broker.provider.IdentityProviderMapper
org.myorg.App
EOF

mvn package

if [ "$?" -ne "0" ] ; then
    exit 1
fi



KEYCLOAK_VERSION=${1:-18.0.0}
[ -f "keycloak-legacy-${KEYCLOAK_VERSION}.zip" ] || {
    curl -LO "https://github.com/keycloak/keycloak/releases/download/${KEYCLOAK_VERSION}/keycloak-legacy-${KEYCLOAK_VERSION}.zip"
}

[ -d "keycloak-${KEYCLOAK_VERSION}" ] || {
    unzip "keycloak-legacy-${KEYCLOAK_VERSION}.zip"
} && cp target/keycloak-so-demo-0.0.1-SNAPSHOT.jar "keycloak-${KEYCLOAK_VERSION}"/standalone/deployments &&
    ./"keycloak-${KEYCLOAK_VERSION}"/bin/standalone.sh &

trap "./keycloak-${KEYCLOAK_VERSION}/bin/jboss-cli.sh --connect --command=:shutdown" EXIT

TIMEOUT=180
while true ; do
    started=$(ss -lt | grep 9990 | wc -l)
    [ "$started" -eq "1" ] && break

    [ "$TIMEOUT" -le "0" ] && {
        echo "Timeout reached starting keycloak"
        exit 1
    }
    TIMEOUT=$((TIMEOUT - 10))
    sleep 10
done

cp target/keycloak-so-demo-0.0.1-SNAPSHOT.jar "keycloak-${KEYCLOAK_VERSION}"/standalone/deployments 
sleep 10

java

jakarta-ee

jboss

wildfly

keycloak

回答 1

Stack Overflow用户

发布于 2022-05-18 20:41:41

org.jboss.as.server不应该依赖于RESTEasy模块。您需要部署才能依赖它。如果定义了jaxrs子系统，默认情况下应该会发生这种情况。

如果jaxrs子系统不存在，则可以使用jboss-deployment-structure.xml或清单条目将依赖项添加到部署中。对于清单条目，只需将Dependencies: org.jboss.resteasy.resteasy-client services添加到JAR中的META-INF/MANIFEST.MF中即可。注意，这些是逗号分隔的条目，因此，如果需要类似于JSON提供程序的内容，则需要如下所示：

Dependencies: org.jboss.resteasy.resteasy-client services, org.jboss.resteasy.resteasy-json-p-provider services

“服务”部分只是导入服务。在某些情况下可能不需要这样做。

票数 1

页面原文内容由Stack Overflow提供。腾讯云小微IT领域专用引擎提供翻译支持

原文链接：

https://stackoverflow.com/questions/72280865

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