[keycloak-user] Get the realms through the Client Admin Api

Dmitry Telegin dt at acutus.pro
Mon Dec 17 23:46:20 EST 2018 

Hello Luca,

I was able to retrieve clients with the identical setup. I've written a simple Java CLI program with the same two lines in the main method. The only difference is that I have some more dependencies in my POM:

    <dependencies>
        <dependency>
            <groupId>org.keycloak</groupId>
            <artifactId>keycloak-admin-client</artifactId>
            <version>4.7.0.Final</version>
        </dependency>
        <dependency>
            <groupId>org.jboss.resteasy</groupId>
            <artifactId>resteasy-client</artifactId>
            <version>3.5.1.Final</version>
        </dependency>
        <dependency>
            <groupId>org.jboss.resteasy</groupId>
            <artifactId>resteasy-jackson2-provider</artifactId>
            <version>3.5.1.Final</version>
        </dependency>
    </dependencies>

Are you also trying to create a Java CLI program? I can share the whole project if you wish.

Cheers,
Dmitry Telegin
CTO, Acutus s.r.o.
Keycloak Consulting and Training

Pod lipami street 339/52, 130 00 Prague 3, Czech Republic
+42 (022) 888-30-71
E-mail: info at acutus.pro

On Mon, 2018-12-17 at 17:23 +0100, Luca Stancapiano wrote:
> I'm triing a simple call via Rest to my keycloak 4.7.0.Final server distribution. I created an admin user through the admin web console:
> 
> user: admin
> pass: admin
> 
> The server works on the 8180 port and it starts through the command:
> 
> ./standalone.sh -Djboss.socket.binding.port-offset=100
> 
> I try to do a simple call using the admin client api imported through the dependency in the pom:
> 
> <dependencies>
>     <dependency>
> 	<groupId>org.keycloak</groupId>
> 	<artifactId>keycloak-admin-client</artifactId>
> 	<version>4.7.0.Final</version>
> 	<scope>test</scope>
>     </dependency>
> </dependencies>
> 
> Here the java code:
> 
> > Keycloak keycloak = Keycloak.getInstance("http://localhost:8180/auth", "master", "admin", "admin", "admin-cli");
> keycloak.realm("master").clients().findAll();
> 
> when the findAll method is executed I receive the Exception:
> 
> javax.ws.rs.ProcessingException: java.lang.NullPointerException
> 	at org.jboss.resteasy.client.jaxrs.internal.ClientInvocation.filterRequest(ClientInvocation.java:599)
> 	at org.jboss.resteasy.client.jaxrs.internal.ClientInvocation.invoke(ClientInvocation.java:436)
> 	at org.jboss.resteasy.client.jaxrs.internal.proxy.ClientInvoker.invokeSync(ClientInvoker.java:148)
> 	at org.jboss.resteasy.client.jaxrs.internal.proxy.ClientInvoker.invoke(ClientInvoker.java:112)
> 	at org.jboss.resteasy.client.jaxrs.internal.proxy.ClientProxy.invoke(ClientProxy.java:76)
> 	at com.sun.proxy.$Proxy29.findAll(Unknown Source)
> 	at it.vige.school.resttest.schoolmodule.test.PresenceTest.setPresence(PresenceTest.java:42)
> 	at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
> 	at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
> 	at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
> 	at java.base/java.lang.reflect.Method.invoke(Method.java:566)
> 	at org.junit.platform.commons.util.ReflectionUtils.invokeMethod(ReflectionUtils.java:532)
> 	at org.junit.jupiter.engine.execution.ExecutableInvoker.invoke(ExecutableInvoker.java:115)
> 	at org.junit.jupiter.engine.descriptor.TestMethodTestDescriptor.lambda$invokeTestMethod$6(TestMethodTestDescriptor.java:171)
> 	at org.junit.platform.engine.support.hierarchical.ThrowableCollector.execute(ThrowableCollector.java:72)
> 	at org.junit.jupiter.engine.descriptor.TestMethodTestDescriptor.invokeTestMethod(TestMethodTestDescriptor.java:167)
> 	at org.junit.jupiter.engine.descriptor.TestMethodTestDescriptor.execute(TestMethodTestDescriptor.java:114)
> 	at org.junit.jupiter.engine.descriptor.TestMethodTestDescriptor.execute(TestMethodTestDescriptor.java:59)
> 	at org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively$4(NodeTestTask.java:108)
> 	at org.junit.platform.engine.support.hierarchical.ThrowableCollector.execute(ThrowableCollector.java:72)
> 	at org.junit.platform.engine.support.hierarchical.NodeTestTask.executeRecursively(NodeTestTask.java:98)
> 	at org.junit.platform.engine.support.hierarchical.NodeTestTask.execute(NodeTestTask.java:74)
> 	at java.base/java.util.ArrayList.forEach(ArrayList.java:1540)
> 	at org.junit.platform.engine.support.hierarchical.SameThreadHierarchicalTestExecutorService.invokeAll(SameThreadHierarchicalTestExecutorService.java:38)
> 	at org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively$4(NodeTestTask.java:112)
> 	at org.junit.platform.engine.support.hierarchical.ThrowableCollector.execute(ThrowableCollector.java:72)
> 	at org.junit.platform.engine.support.hierarchical.NodeTestTask.executeRecursively(NodeTestTask.java:98)
> 	at org.junit.platform.engine.support.hierarchical.NodeTestTask.execute(NodeTestTask.java:74)
> 	at java.base/java.util.ArrayList.forEach(ArrayList.java:1540)
> 	at org.junit.platform.engine.support.hierarchical.SameThreadHierarchicalTestExecutorService.invokeAll(SameThreadHierarchicalTestExecutorService.java:38)
> 	at org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively$4(NodeTestTask.java:112)
> 	at org.junit.platform.engine.support.hierarchical.ThrowableCollector.execute(ThrowableCollector.java:72)
> 	at org.junit.platform.engine.support.hierarchical.NodeTestTask.executeRecursively(NodeTestTask.java:98)
> 	at org.junit.platform.engine.support.hierarchical.NodeTestTask.execute(NodeTestTask.java:74)
> 	at org.junit.platform.engine.support.hierarchical.SameThreadHierarchicalTestExecutorService.submit(SameThreadHierarchicalTestExecutorService.java:32)
> 	at org.junit.platform.engine.support.hierarchical.HierarchicalTestExecutor.execute(HierarchicalTestExecutor.java:57)
> 	at org.junit.platform.engine.support.hierarchical.HierarchicalTestEngine.execute(HierarchicalTestEngine.java:51)
> 	at org.junit.platform.launcher.core.DefaultLauncher.execute(DefaultLauncher.java:220)
> 	at org.junit.platform.launcher.core.DefaultLauncher.lambda$execute$6(DefaultLauncher.java:188)
> 	at org.junit.platform.launcher.core.DefaultLauncher.withInterceptedStreams(DefaultLauncher.java:202)
> 	at org.junit.platform.launcher.core.DefaultLauncher.execute(DefaultLauncher.java:181)
> 	at org.junit.platform.launcher.core.DefaultLauncher.execute(DefaultLauncher.java:128)
> 	at org.apache.maven.surefire.junitplatform.JUnitPlatformProvider.invokeAllTests(JUnitPlatformProvider.java:142)
> 	at org.apache.maven.surefire.junitplatform.JUnitPlatformProvider.invoke(JUnitPlatformProvider.java:117)
> 	at org.apache.maven.surefire.booter.ForkedBooter.invokeProviderInSameClassLoader(ForkedBooter.java:384)
> 	at org.apache.maven.surefire.booter.ForkedBooter.runSuitesInProcess(ForkedBooter.java:345)
> 	at org.apache.maven.surefire.booter.ForkedBooter.execute(ForkedBooter.java:126)
> 	at org.apache.maven.surefire.booter.ForkedBooter.main(ForkedBooter.java:418)
> Caused by: java.lang.NullPointerException
> 	at org.keycloak.admin.client.resource.BearerAuthFilter.filter(BearerAuthFilter.java:53)
> 	at org.jboss.resteasy.client.jaxrs.internal.ClientInvocation.filterRequest(ClientInvocation.java:586)
> 	... 47 more
> 
> 
> 
> What i miss?
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