[keycloak-user] java.lang.NoClassDefFoundError: org/keycloak/representations/AccessTokenResponse

valsaraj pv valsarajpv at gmail.com
Tue May 22 07:05:02 EDT 2018


Removed keycloak jars from application & then added
keycloak-admin-client-3.4.3.Final.jar in keycloak-core module for checking.
Then got following exception:

> java.lang.NoClassDefFoundError:
> org/jboss/resteasy/client/jaxrs/ResteasyClientBuilder
> at org.keycloak.admin.client.Keycloak.<init>(Keycloak.java:58)
> at org.keycloak.admin.client.Keycloak.getInstance(Keycloak.java:106)
> at com.ltchie.keycloak.util.KeycloakUtil.getInstance(KeycloakUtil.java:78)
> at
> org.tolven.web.security.GeneralSecurityFilter.doFilter(GeneralSecurityFilter.java:478)


Looks like resteasy dependency required here.
So  keycloak-admin-client not coming out of the box for WidFly modules. Is
there any other jar that can be used for calling admin APIs?


On Tue, May 22, 2018 at 4:11 PM, valsaraj pv <valsarajpv at gmail.com> wrote:

> Which Keycloak API jar we can use to call admin APIs from Java application?
>
> On Tue, May 22, 2018 at 4:08 PM, valsaraj pv <valsarajpv at gmail.com> wrote:
>
>> After adding keycloak-core-3.4.3.Final.jar into ear:
>>
>>> java.lang.LinkageError: loader constraint violation: loader (instance of
>>> org/jboss/modules/ModuleClassLoader) previously initiated loading for a
>>> different type with name "org/keycloak/representations/
>>> idm/RealmRepresentation"
>>> at java.lang.Class.forName0(Native Method)
>>> at java.lang.Class.forName(Class.java:264)
>>> at com.sun.proxy.$Proxy344.<clinit>(Unknown Source)
>>> at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
>>> at sun.reflect.NativeConstructorAccessorImpl.newInstance(Native
>>> ConstructorAccessorImpl.java:62)
>>> at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(De
>>> legatingConstructorAccessorImpl.java:45)
>>> at java.lang.reflect.Constructor.newInstance(Constructor.java:422)
>>> at java.lang.reflect.Proxy.newProxyInstance(Proxy.java:739)
>>> at org.jboss.resteasy.client.jaxrs.ProxyBuilder.proxy(ProxyBuil
>>> der.java:79)
>>> at org.jboss.resteasy.client.jaxrs.ProxyBuilder.build(ProxyBuil
>>> der.java:131)
>>> at org.jboss.resteasy.client.jaxrs.internal.ClientWebTarget.
>>> proxy(ClientWebTarget.java:74)
>>> at org.keycloak.admin.client.Keycloak.realms(Keycloak.java:114)
>>> at org.keycloak.admin.client.Keycloak.realm(Keycloak.java:118)
>>
>>
>>
>> On Tue, May 22, 2018 at 3:07 PM, valsaraj pv <valsarajpv at gmail.com>
>> wrote:
>>
>>>
>>> Hi,
>>>
>>> I am getting following exception when calling admin API:
>>>
>>>> java.lang.NoClassDefFoundError: org/keycloak/representations/A
>>>>> ccessTokenResponse
>>>>
>>>> at java.lang.Class.getDeclaredMethods0(Native Method)
>>>>
>>>> at java.lang.Class.privateGetDeclaredMethods(Class.java:2701)
>>>>
>>>> at java.lang.Class.privateGetPublicMethods(Class.java:2902)
>>>>
>>>> at java.lang.Class.getMethods(Class.java:1615)
>>>>
>>>> at org.jboss.resteasy.client.jaxrs.ProxyBuilder.proxy(ProxyBuil
>>>>> der.java:48)
>>>>
>>>> at org.jboss.resteasy.client.jaxrs.ProxyBuilder.build(ProxyBuil
>>>>> der.java:131)
>>>>
>>>> at org.jboss.resteasy.client.jaxrs.internal.ClientWebTarget.pro
>>>>> xy(ClientWebTarget.java:74)
>>>>
>>>> at org.keycloak.admin.client.token.TokenManager.<init>(TokenMan
>>>>> ager.java:55)
>>>>
>>>> at org.keycloak.admin.client.Keycloak.<init>(Keycloak.java:60)
>>>>
>>>> at org.keycloak.admin.client.Keycloak.getInstance(Keycloak.java:106)
>>>>
>>>>
>>> I have added keycloak-admin-client-3.4.3.Final.jar in ear lib & set
>>> dependency to following modules:
>>>
>>>> <module name="org.keycloak.keycloak-adapter-spi"/>
>>>
>>> <module name="org.keycloak.keycloak-adapter-core"/>
>>>
>>> <module name="org.keycloak.keycloak-common"/>
>>>
>>> <module name="org.keycloak.keycloak-core"/>
>>>
>>>
>>> Thanks!
>>>
>>
>>
>>
>> --
>> Life is like this: "Just when we get all the answers of life.... God
>> changes the question paper....
>>
>> Valsaraj Viswanathan
>>
>
>
>
> --
> Life is like this: "Just when we get all the answers of life.... God
> changes the question paper....
>
> Valsaraj Viswanathan
>



-- 
Life is like this: "Just when we get all the answers of life.... God
changes the question paper....

Valsaraj Viswanathan


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