> ## Documentation Index
> Fetch the complete documentation index at: https://cantonfoundation-generated-references-ledger-bindings-update.mintlify.site/llms.txt
> Use this file to discover all available pages before exploring further.

# PackageManagementServiceGrpc.PackageManagementServiceBlockingStub

> A stub to allow clients to do synchronous rpc calls to service PackageManagementService. Status: experimental interface, will change before it is deemed production ready Query the Daml-LF packages supported by the ledger participant and upload DAR files. We use 'backing participant' to refer to this specific participant in the methods of this API.

## PackageManagementServiceGrpc.PackageManagementServiceBlockingStub

Upstream docs: [Open](https://javadoc.io/doc/com.daml/bindings-java/3.5.7/com/daml/ledger/api/v2/admin/PackageManagementServiceGrpc.PackageManagementServiceBlockingStub.html)

**Signature**

```text theme={"theme":{"light":"github-light","dark":"github-dark"}}
public static final class PackageManagementServiceGrpc.PackageManagementServiceBlockingStub extends io.grpc.stub.AbstractBlockingStub<PackageManagementServiceGrpc.PackageManagementServiceBlockingStub>
```

**Members**

| Docs                                                                                                                                                                                                                                                                                  | Member                                                                                 | Introduced | Deprecated | Removed |
| ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | -------------------------------------------------------------------------------------- | ---------- | ---------- | ------- |
| [Open](https://javadoc.io/doc/com.daml/bindings-java/3.5.7/com/daml/ledger/api/v2/admin/PackageManagementServiceGrpc.PackageManagementServiceBlockingStub.html#build%28io.grpc.Channel,io.grpc.CallOptions%29)                                                                        | `build(Channel, CallOptions)`                                                          | `3.5.7`    | -          | -       |
| [Open](https://javadoc.io/doc/com.daml/bindings-java/3.5.7/com/daml/ledger/api/v2/admin/PackageManagementServiceGrpc.PackageManagementServiceBlockingStub.html#listKnownPackages%28com.daml.ledger.api.v2.admin.PackageManagementServiceOuterClass.ListKnownPackagesRequest%29)       | `listKnownPackages(PackageManagementServiceOuterClass.ListKnownPackagesRequest)`       | `3.5.7`    | -          | -       |
| [Open](https://javadoc.io/doc/com.daml/bindings-java/3.5.7/com/daml/ledger/api/v2/admin/PackageManagementServiceGrpc.PackageManagementServiceBlockingStub.html#updateVettedPackages%28com.daml.ledger.api.v2.admin.PackageManagementServiceOuterClass.UpdateVettedPackagesRequest%29) | `updateVettedPackages(PackageManagementServiceOuterClass.UpdateVettedPackagesRequest)` | `3.5.7`    | -          | -       |
| [Open](https://javadoc.io/doc/com.daml/bindings-java/3.5.7/com/daml/ledger/api/v2/admin/PackageManagementServiceGrpc.PackageManagementServiceBlockingStub.html#uploadDarFile%28com.daml.ledger.api.v2.admin.PackageManagementServiceOuterClass.UploadDarFileRequest%29)               | `uploadDarFile(PackageManagementServiceOuterClass.UploadDarFileRequest)`               | `3.5.7`    | -          | -       |
| [Open](https://javadoc.io/doc/com.daml/bindings-java/3.5.7/com/daml/ledger/api/v2/admin/PackageManagementServiceGrpc.PackageManagementServiceBlockingStub.html#validateDarFile%28com.daml.ledger.api.v2.admin.PackageManagementServiceOuterClass.ValidateDarFileRequest%29)           | `validateDarFile(PackageManagementServiceOuterClass.ValidateDarFileRequest)`           | `3.5.7`    | -          | -       |