private com.google.protobuf.SingleFieldBuilderV3<
            com.google.cloud.vmmigration.v1.VmwareVmsDetails,
            com.google.cloud.vmmigration.v1.VmwareVmsDetails.Builder,
            com.google.cloud.vmmigration.v1.VmwareVmsDetailsOrBuilder>
        getVmwareVmsFieldBuilder() {
      if (vmwareVmsBuilder_ == null) {
        if (!(sourceVmsCase_ == 1)) {
          sourceVms_ = com.google.cloud.vmmigration.v1.VmwareVmsDetails.getDefaultInstance();
        }
        vmwareVmsBuilder_ =
            new com.google.protobuf.SingleFieldBuilderV3<
                com.google.cloud.vmmigration.v1.VmwareVmsDetails,
                com.google.cloud.vmmigration.v1.VmwareVmsDetails.Builder,
                com.google.cloud.vmmigration.v1.VmwareVmsDetailsOrBuilder>(
                (com.google.cloud.vmmigration.v1.VmwareVmsDetails) sourceVms_,
                getParentForChildren(),
                isClean());
        sourceVms_ = null;
      }
      sourceVmsCase_ = 1;
      onChanged();
      return vmwareVmsBuilder_;
    }
<pre>
The description of the VMs in a Source of type Vmware.
</pre>

<code>.google.cloud.vmmigration.v1.VmwareVmsDetails vmware_vms = 1;</code>
java-vmmigration/proto-google-cloud-vmmigration-v1/src/main/java/com/google/cloud/vmmigration/v1/FetchInventoryResponse.java