steveloughran commented on PR #4996:
URL: https://github.com/apache/hadoop/pull/4996#issuecomment-1713650781
updated pr tries to address reviews, including building.txt details.
regarding @apurtell's comment about static vs qualified import of
`getRemoteException()` I started to convert, but got fed up with the needless
repetition. So upgraded the RPC invocations to java 8 language level (!!) by
adding a new operation `ipc()` to take a lambda expression and do the
invocation, translating the result
```java
public static <T> T ipc(IpcCall<T> call) throws IOException {
try {
return call.call();
} catch (ServiceException e) {
throw getRemoteException(e);
}
}
```
this lets us have far simpler invocations in the code
```java
status = ipc(() -> rpcProxy.getServiceStatus(NULL_CONTROLLER,
GET_SERVICE_STATUS_REQ));
```
I've done this for hadoop-common; if all are happy then I will do for the
rest of the modules
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