A false negative about the rule RV_DONT_JUST_NULL_CHECK_READLINE

[Zustin]

Hi, I find a false negative about the rule RV_DONT_JUST_NULL_CHECK_READLINE. Please refer to the below code sample.

SpotBugs should have reported a violation at line 3, but it does not. Hence, I think this is a false negative. Thanks for your consideration and I am willing to help fix this issue.

public void foo(InputStream stream) throws IOException {
    MemoryCacheImageInputStream is = new MemoryCacheImageInputStream(stream);
    while(is.readLine() != null) {}
}

MySpotBugs version is 4.4.2 and I run it by Idea plugin and CLI.

[gtoison]

This was fixed in #1823