I have a maven based Java 7 project.

Given

final String fileName = "/" + resource + ".txt";
InputStream inputStream = Thread.currentThread().getContextClassLoader().getResourceAsStream(fileName);
        
final Path resourcePath = Paths.get("src/test/resources"+fileName);
if(inputStream == null && Files.exists(resourcePath, LinkOption.NOFOLLOW_LINKS))
{
  inputStream = new FileInputStream(resourcePath.toFile());
}
if (inputStream == null) // "Unnecessary test for null, the expression is never null" hint
{
    inputStream = new FileInputStream("src/main/resources" + fileName);
}

The hint that "inputStream" can not be null is wrong, since the condition above may result in "inputStream == null, file exist == false".

If I change it to

if(inputStream == null && true)
{
   inputStream = new FileInputStream(resourcePath.toFile());
}
if (inputStream == null)
{
   inputStream = new FileInputStream("src/main/resources" + fileName);
}

the hint vanishes, even if it would now make sense.