java - OpenStack 连接时抛出 NullPointerException

Question

我正在尝试连接OpenStack在创建租户之前。它从“openstack-client-3.2.1.jar”中的 OpenStackClient.request() 给出了 NullPointerException。

代码和堆栈跟踪的开头如下:

UsernamePassword usernamePassword = new UsernamePassword(userA,passA)
com.woorea.openstack.keystone.model.Access access = 
    keystone
     .tokens()
     .authenticate(usernamePassword)
     .execute();

堆栈跟踪是:

 [java] java.lang.NullPointerException
 [java]     at com.woorea.openstack.base.client.OpenStackClient.request(OpenStackClient.java:51)
 [java]     at com.woorea.openstack.base.client.OpenStackClient.execute(OpenStackClient.java:66)
 [java]     at com.woorea.openstack.base.client.OpenStackRequest.execute(OpenStackRequest.java:98)
 [java]     at vep.openstack.OpenStackConnector.addUser(OpenStackConnector.java:624)

Answer 1

需要添加下面列出的三个库(即 openstack-client-connectors)之一:

Jersey 连接器

jersey2-连接器

resteasy 连接器