Authorization failed error on OOTB DFS 7.2 sample code

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Hi Expert,

We are getting below error while run the OOTB DFS 7.2 Sample code through Composer 7.2.

com.emc.documentum.fs.rt.AuthenticationException: Authorization failed, please review identities provided in service context "temporary/127.0.0.1-1540803488685-9245e08e-4ca7-441a-b9be-665678adbc46". Could not initialize class com.documentum.fc.client.DfClient
at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:57)
at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
at java.lang.reflect.Constructor.newInstance(Constructor.java:526)
at com.emc.documentum.fs.rt.context.impl.compat.ClientReflectionServiceInvokerCompat60.getExceptionInstance(ClientReflectionServiceInvokerCompat60.java:191)
at com.emc.documentum.fs.rt.context.impl.compat.ClientReflectionServiceInvokerCompat60.invoke(ClientReflectionServiceInvokerCompat60.java:83)
at com.emc.documentum.fs.rt.context.impl.UcfClientInvocationHandler.invoke(UcfClientInvocationHandler.java:52)
at com.emc.documentum.fs.rt.context.impl.SoapClientInvocationHandler.invoke(SoapClientInvocationHandler.java:60)
at com.emc.documentum.fs.rt.context.impl.MtomCompatHandler60SP1.invoke(MtomCompatHandler60SP1.java:60)
at com.emc.documentum.fs.rt.context.impl.HttpSessionInvocationHandler.invoke(HttpSessionInvocationHandler.java:88)
at com.emc.documentum.fs.rt.context.impl.RemoteServiceInterfaceInvocationHandler.invoke(RemoteServiceInterfaceInvocationHandler.java:30)
at com.emc.documentum.fs.rt.context.impl.ReturnedContentTransformationHandler.invoke(ReturnedContentTransformationHandler.java:45)
at com.emc.documentum.fs.rt.context.impl.OperationOptionsHandler.invoke(OperationOptionsHandler.java:74)
at com.emc.documentum.fs.rt.context.impl.ContextThreadLocalInvocationHandler.invoke(ContextThreadLocalInvocationHandler.java:48)
at com.emc.documentum.fs.rt.context.impl.ServiceContextInvocationHandler.invoke(ServiceContextInvocationHandler.java:30)
at com.emc.documentum.fs.rt.context.impl.FileRegistryCleanupHandler.invoke(FileRegistryCleanupHandler.java:24)
at com.sun.proxy.$Proxy21.execute(Unknown Source)
at com.emc.documentum.fs.doc.test.client.TQueryServiceTest.callQueryService(TQueryServiceTest.java:98)
at com.emc.documentum.fs.doc.test.client.TQueryServiceTest.main(TQueryServiceTest.java:123)
Caused by: java.lang.NoClassDefFoundError: Could not initialize class com.documentum.fc.client.DfClient
at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:57)
at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
at java.lang.reflect.Constructor.newInstance(Constructor.java:526)
at com.emc.documentum.fs.rt.context.impl.compat.ClientReflectionServiceInvokerCompat60.getExceptionInstance(ClientReflectionServiceInvokerCompat60.java:159)
at com.emc.documentum.fs.rt.context.impl.compat.ClientReflectionServiceInvokerCompat60.invoke(ClientReflectionServiceInvokerCompat60.java:82)
... 13 more

Kindly suggest if any one faced similar issue.

Thanks in Advance !
Ram