private com.google.protobuf.SingleFieldBuilderV3<
            com.google.cloud.vmmigration.v1.VmwareSourceDetails,
            com.google.cloud.vmmigration.v1.VmwareSourceDetails.Builder,
            com.google.cloud.vmmigration.v1.VmwareSourceDetailsOrBuilder>
        getVmwareFieldBuilder() {
      if (vmwareBuilder_ == null) {
        if (!(sourceDetailsCase_ == 10)) {
          sourceDetails_ = com.google.cloud.vmmigration.v1.VmwareSourceDetails.getDefaultInstance();
        }
        vmwareBuilder_ =
            new com.google.protobuf.SingleFieldBuilderV3<
                com.google.cloud.vmmigration.v1.VmwareSourceDetails,
                com.google.cloud.vmmigration.v1.VmwareSourceDetails.Builder,
                com.google.cloud.vmmigration.v1.VmwareSourceDetailsOrBuilder>(
                (com.google.cloud.vmmigration.v1.VmwareSourceDetails) sourceDetails_,
                getParentForChildren(),
                isClean());
        sourceDetails_ = null;
      }
      sourceDetailsCase_ = 10;
      onChanged();
      return vmwareBuilder_;
    }
<pre>
Vmware type source details.
</pre>

<code>.google.cloud.vmmigration.v1.VmwareSourceDetails vmware = 10;</code>
java-vmmigration/proto-google-cloud-vmmigration-v1/src/main/java/com/google/cloud/vmmigration/v1/Source.java