import java.nio.file.attribute.UserPrincipalNotFoundException; //导入依赖的package包/类
private String putBlob( Blob blob )
{
    String etag = null;

    try
    {
        etag = blobStore.putBlob( config.container, blob );
    }
    catch ( RuntimeException rte )
    {
        Throwable cause = rte.getCause();

        if ( cause != null && cause instanceof UserPrincipalNotFoundException )
        {
            // Intentionally ignored exception which occurs with JClouds (< 2.0.0) on localized Windows.
            // See https://issues.apache.org/jira/browse/JCLOUDS-1015
            log.debug( "Ignored UserPrincipalNotFoundException. Workaround for 'JCLOUDS-1015'." );
        }
        else
        {
            throw rte;
        }
    }

    return etag;
}
 

import java.nio.file.attribute.UserPrincipalNotFoundException; //导入依赖的package包/类
private String putBlob( Blob blob )
{
    String etag = null;

    try
    {
        etag = blobStore.putBlob( container, blob );
    }
    catch ( RuntimeException rte )
    {
        Throwable cause = rte.getCause();

        if ( cause != null && cause instanceof UserPrincipalNotFoundException )
        {
            // Intentionally ignored exception which occurs with JClouds on localized
            // Windows systems while trying to resolve the "Everyone" group.
            // See https://issues.apache.org/jira/browse/JCLOUDS-1015
            log.debug( "Ignored UserPrincipalNotFoundException. Workaround for JClouds bug 'JCLOUDS-1015'." );
        }
        else
        {
            throw rte;
        }
    }

    return etag;
}
 

import java.nio.file.attribute.UserPrincipalNotFoundException; //导入依赖的package包/类
@Override
public UserPrincipal lookupPrincipalByName(String name) throws IOException {
    if(name.equals(userPrincipal.getName())) {
        return userPrincipal;
    }
    throw new UserPrincipalNotFoundException(name);
}
 

import java.nio.file.attribute.UserPrincipalNotFoundException; //导入依赖的package包/类
@Override
public GroupPrincipal lookupPrincipalByGroupName(String group)
        throws IOException {
    if(group.equals(groupPrincipal.getName())) {
        return groupPrincipal;
    }
    throw new UserPrincipalNotFoundException(group);

}
 

import java.nio.file.attribute.UserPrincipalNotFoundException; //导入依赖的package包/类
@Override
public GroupPrincipal lookupPrincipalByGroupName(String group) throws IOException {
  if (!supportsGroups) {
    throw new UserPrincipalNotFoundException(group); // required by spec
  }
  return createGroupPrincipal(group);
}
 

import java.nio.file.attribute.UserPrincipalNotFoundException; //导入依赖的package包/类
@Test
public void testServiceNotSupportingGroups() throws IOException {
  UserPrincipalLookupService service = new UserLookupService(false);

  try {
    service.lookupPrincipalByGroupName("group");
    fail();
  } catch (UserPrincipalNotFoundException expected) {
    assertThat(expected.getName()).isEqualTo("group");
  }
}
 

import java.nio.file.attribute.UserPrincipalNotFoundException; //导入依赖的package包/类
@Override
public SimplePrincipal lookupPrincipalByName( String name ) throws IOException {
    return users.getOrThrow( name, new UserPrincipalNotFoundException( "no such user: " + name ) );
}
 

import java.nio.file.attribute.UserPrincipalNotFoundException; //导入依赖的package包/类
@Override
public SimplePrincipal lookupPrincipalByGroupName( String name ) throws IOException {
    return groups.getOrThrow( name, new UserPrincipalNotFoundException( "no such group: " + name ) );
}