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Comment by pjmlp | Hacker News Reader

I have since repent myself.

Google did indeed managed to pull a Microsoft and now we have a forked Java implementation getting steady behind the standard Java implementations.

Even J2ME is more compatible with its big brother than Android.

KitKat has now partial support for Java 7, with libraries still missing some pieces. Dalvik and ART still don't support invokedynamic bytecode.

And since almost no one has KitKat, one cannot use try-with-resources anyway.

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I wrote a lot of J2ME stuff a few years ago and you're spot on. I spent two weeks doing Java 8 bits with NetBeans which was really nice and spent the last two evenings writing my first Android app and what a complete mess it is. Plus the Android tooling is horrible to get working reliably - most problems being solved by "restart eclipse".

Late edit: perhaps Oracle should make a phone ;)

I also did some J2ME stuff back in 2003, most with Sharp and Nokia devices.

I read somewhere that some in the Android team are C converts doing their first Java gig.

Have you seen how broken are the generated Renderscript bindings? They don't have anything to do with Java conventions and feel completely out of place.

Haven't looked at render script yet. Still scratching head on the layout engine stuff and View infrastructure. It's fugly. I usually write C#+WPF and C++/Qt and HTML/Java EE and all of those are massively nicer to deal with.

If you are two days in and still getting around how Views and layout works I wouldn't call it a mess yet. You are still pretty early into it. Its not messy its just new to you.

From my experience once you get past the initial hump of learning their basic APIs and conventions its a very easy to work with platform. Maybe I am biased because I spend a lot of time with it. I also really like the tooling. How is it acting unstable for you?

> Late edit: perhaps Oracle should make a phone ;)

They did an open spec tablet with a raspberry pi tough.

https://wiki.openjdk.java.net/display/OpenJFX/DukePad

Chuck a GSM module in it and done :)

> Plus the Android tooling is horrible to get working reliably - most problems being solved by "restart eclipse"

Try Intellij IDEA / Android Studio. I find them quite reliable.

Intellij IDEA, yes.

Android Studio seems to still have performance issues with Gradle on Windows, specially when indexing stuff.

Agreed. I prefer IntelliJ IDEA Community Edition to Android Studio because I like using the same IDE for Android and Java development.

> "restart eclipse"

Eclipse

/shudder

After this week, yep!

> Even J2ME is more compatible with its big brother than Android.

Are you serious?

J2ME is even more crippled than Android's Java (no reflection, no Swing, no AWT and stuck in Java 1.4).

J2ME has been dead for more than half a decade and we have Android to thank for that. Good riddance.

I'm not sure where you get your information about this, but J2ME 8 was released alongside Java 8:

http://www.oracle.com/technetwork/java/embedded/overview/jav...

No invokedynamic though :-) https://jcp.org/en/jsr/detail?id=360

Also missing:

    Reflection
    Serialization
    Lambda expressions (JSR 335)
    JNI and application native code
    User-defined class loaders
    Full annotations support (Runtime annotations)
    Thread groups and demon threads
    Full Math APIs (with BigDecimals)
    Concurrency utilities
    Full security APIs
    Full collection APIs (Sorted collection classes)

Source: http://docs.oracle.com/javame/config/cldc/opt-pkgs/api/cldc/...

J2ME has been updated to Java 8 and outside the mobile world is used a lot in embedded industrial deployments.

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