java.nio.file Assertions are going to break a lot of Android projects

[emilesvt]

We found by way of a few transitive dependencies (assertj-guava:1.2.0) when 2.0.0 was released on Friday a lot of our Android projects stopped working. The File based assertions that were added within the last month aren't going to work on the Dalvik platform as those classes are not available. This will preclude anyone using from assertj in their Android projects from ever moving the 2.x version.

[joel-costigliola]

Well, we can't be stuck to java 6 just because of Android.
Having said that, if there are some assertions you really need, we might just release another 1.x version including them.

[emilesvt]

We're not missing any assertions and JDK7 support is available for Android, it's just that Dalvik doesn't have all the classes available to it that you'd find in the JRE. I was just throwing this out there so others were aware.

[Sarev0k]

I'm getting the following compilation error when I try to use AssertJ 2.0 with Android:

    error: cannot access Path
            assertThat(“foo”).isEqualTo(“Bar”);
            ^
    class file for java.nio.file.Path not found
    1 error

Setting the CompileOptions in my build.gradle to enable some Java7 features didn't seem to help:

    compileOptions {
        sourceCompatibility JavaVersion.VERSION_1_7
        targetCompatibility JavaVersion.VERSION_1_7
    }

[joel-costigliola]

The reason was given by @emilesvt previous comment.

[dlubarov]

AssertJ Core 2.0 relies on Java 7.

I would tweak the release notes to make it clear that it relies on JRE 7 SE classes. It sounded to me like it relies on Java 7 language features, which wouldn't be a problem for most Android projects.

[joel-costigliola]

Will add that.

[joel-costigliola]

Done : http://joel-costigliola.github.io/assertj/assertj-core.html

[dlubarov]

Thanks!

[1zaman]

Done : http://joel-costigliola.github.io/assertj/assertj-core.html

That web page claims that the 2.x version should be suitable for Android.

if there are some assertions you really need, we might just release another 1.x version including them.

The assertion that I was missing is isEqualByComparingTo() in AbstractComparableAssert.

[joel-costigliola]

Note that you have to use Java6Assertions and yes it should be mentioned in the documentation but it is not (yet).

[joel-costigliola]

doc issue created : joel-costigliola/assertj#61

[1zaman]

Using Java6Assertions fixes the issue, thanks!