SapiensAnatis opened a new issue, #1452:
URL: https://github.com/apache/maven-mvnd/issues/1452
### Affected version
6734804eedc68f0f30aca315e842f3ec015def73
### Bug description
I am looking to use mvnd as a way to run an auto-formatter in an IDE plugin,
so far it looks much faster than mvn so I'm very keen to get it working.
The auto-formatter mojo tries to read the document from stdin. I have
noticed this works fine in mvn but on mvnd it is only able to read 1 byte. I
made the following mojo to demonstrate the issue:
```java
package sample.plugin;
import org.apache.maven.plugin.AbstractMojo;
import org.apache.maven.plugin.MojoExecutionException;
import org.apache.maven.plugins.annotations.Mojo;
import java.nio.charset.StandardCharsets;
@Mojo(name = "sayhi")
public class GreetingMojo extends AbstractMojo {
@Override
public void execute() throws MojoExecutionException {
byte[] bytes = new byte[] {};
try {
System.out.println("Available bytes: " + System.in.available());
bytes = System.in.readAllBytes();
} catch (Exception ex) {
getLog().error("Failed to read from stdin", ex);
}
System.out.println("Read " + bytes.length + " bytes from stdin.");
System.out.println("Stdin content: \"" + new String(bytes,
StandardCharsets.UTF_8) + "\"");
}
}
```
If I run this with `mvn` as follows:
```
$ echo -n "Hello" | mvn sample.plugin:hello-maven-plugin:1.0-SNAPSHOT:sayhi
```
then I get the expected output:
```
[INFO] --- hello:1.0-SNAPSHOT:sayhi (default-cli) @ hello-maven-plugin ---
[INFO] [stdout] Available bytes: 5
[INFO] [stdout] Read 5 bytes from stdin.
[INFO] [stdout] Stdin content: "Hello"
```
However if I use `mvnd`:
```
$ echo -n "Hello" | mvnd sample.plugin:hello-maven-plugin:1.0-SNAPSHOT:sayhi
```
then I get this output:
```
[INFO] --- hello:1.0-SNAPSHOT:sayhi (default-cli) @ hello-maven-plugin ---
[INFO] [stdout] Available bytes: 0
[INFO] [stdout] Read 1 bytes from stdin.
[INFO] [stdout] Stdin content: "H"
```
or sometimes I get `[INFO] [stdout] Stdin content: ""`. I have found if I
ignore `System.in.available()` and keep trying to read 1 character at a time I
can eventually get the whole stdin content, but it would be nice if
`readAllBytes` just worked.
Could this be a delay in the daemon receiving the standard input from the
terminal interface? I did try adding a sleep for 1s at the start of my mojo but
this didn't change the behaviour at all.
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