The description of jclouds is given in the below link.https://jclouds.apache.org/guides/openstack/. I have packstack installed in the machine. java -classpath ".:lib/*" JCloudsNovaException in thread "main" java.util.ServiceConfigurationError: org.jclouds.apis.ApiMetadata: Provider org.jclouds.openstack.neutron.v2.NeutronApiMetadata could not be instantiated at java.util.ServiceLoader.fail(ServiceLoader.java:232) at java.util.ServiceLoader.access$100(ServiceLoader.java:185) at java.util.ServiceLoader$LazyIterator.nextService(ServiceLoader.java:384) at java.util.ServiceLoader$LazyIterator.next(ServiceLoader.java:404) at java.util.ServiceLoader$1.next(ServiceLoader.java:480) at com.google.common.collect.ImmutableCollection$Builder.addAll(ImmutableCollection.java:281)at com.google.common.collect.ImmutableCollection$ArrayBasedBuilder.addAll(ImmutableCollection.java:360) at com.google.common.collect.ImmutableSet$Builder.addAll(ImmutableSet.java:508) at org.jclouds.apis.Apis.all(Apis.java:72) at org.jclouds.apis.Apis.withId(Apis.java:88) at org.jclouds.ContextBuilder.newBuilder(ContextBuilder.java:169) at JCloudsNova.(JCloudsNova.java:39) at
JCloudsNova.main(JCloudsNova.java:19)Caused by: java.lang.NoClassDefFoundError: org/jclouds/openstack /keystone/v2_0/config/AuthenticationApiModule at org.jclouds.openstack.neutron.v2.NeutronApiMetadata$Builder.(NeutronApiMetadata.java:78) at org.jclouds.openstack.neutron.v2.NeutronApiMetadata.(NeutronApiMetadata.java:51) at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method) at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62) at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45) at java.lang.reflect.Constructor.newInstance(Constructor.java:423) at java.lang.Class.newInstance(Class.java:442) at java.util.ServiceLoader$LazyIterator.nextService(ServiceLoader.java:380) ... 10 moreCaused by: java.lang.ClassNotFoundException: org.jclouds.openstack.keystone.v2_0.config.AuthenticationApiModule at java.net.URLClassLoader.findClass(URLClassLoader.java:381) at java.lang.ClassLoader.loadClass(ClassLoader.java:424) at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:349) at java.lang.ClassLoader.loadClass(ClassLoader.java:357) ... 18 more
