Line Seperator issue between windows and unix

Reproduisez la divergence à l’aide de google-java-format-1.10.0-all-deps.jar et de l’exemple MinimalExample.java avec des fins de ligne LF et CRLF. Suivez la raison pour laquelle le formateur produit des retours à la ligne différents, puis vérifiez que le formatage du même code source produit une sortie cohérente sans saut de ligne supplémentaire sur les deux plateformes.

When applying GJF, some code is formatted differently between Unix-style line seperators (LF) and Windows-style line seperators (CRLF). With windows-style an extra linebreak is added, caused by the char difference between LF (\n) and CRLF (\r\n).

I changed the line-separator-style with Intellij (File>File Properties> Line Separators, while having the file opened) and got the following outputs:

Executing java -jar google-java-format-1.10.0-all-deps.jar MinimalExample.java when the file is formatted with Unix line endings:

import static org.mockito.Mockito.mock;
import static org.mockito.Mockito.when;

import feign.FeignException;

public class MinimalExample {
  void googleJavaFormatWindowsFail() {

    FeignException feignException = mock(FeignException.class);
    when(feignException.contentUTF8()).thenReturn("""
    {
      "errorCode" : 420
    }
    """);
  }
}

Executing java -jar google-java-format-1.10.0-all-deps.jar MinimalExample.java when the file is formatted with Windows line endings:

import static org.mockito.Mockito.mock;
import static org.mockito.Mockito.when;

import feign.FeignException;

public class MinimalExample {
  void googleJavaFormatWindowsFail() {

    FeignException feignException = mock(FeignException.class);
    when(feignException.contentUTF8())
        .thenReturn("""
    {
      "errorCode" : 420
    }
    """);
  }
}

If two chars are added, Unix-style generates the same line-break:

import static org.mockito.Mockito.mock;
import static org.mockito.Mockito.when;

import feign.FeignException;

public class MinimalExample {
  void googleJavaFormatWindowsFail() {

    FeignException feignException = mock(FeignException.class);
    when(feignException.contentUTF8())
        .thenReturn("""
    {
      "errorCode" : 42069
    }
    """);
  }
}

Done on GJF 1.10.0, 1,9 and 1.8 with Java 15.0.2
Windows 10 10.0
IntelliJ IDEA 2021.1.1 (Community Edition)