[iconhacker]

I have used latest edition of IntelliJ on OsX. IntelliJ is acceptable but not smooth at all considering that I have 16g ram with 1tb Ssd. And font rendering due to the jvm swing bug is hurting eyes. It is far fetched to say the experience is any pleasant. To fix the issue of Java, jetbrain bundles their custom built jdk

[sievebrain]

I use IntelliJ on the same setup and don't see any font issues. I haven't noticed any lack of smoothness either, but perhaps we have different standards for that.

[iconhacker]

Another important performance issue is related to Java's handling about generic type erasure and auto boxing. This is one of the biggest design issue comparing with C#'s handling. So manipulating bytes is a pain. And there is even no unsigned byte. Benchmark does not represent real world use case. I don't feel Java is much faster than Python or Ruby. But there is too much boilerplate code comparing with C#. The pure Java language is clean. But with Spring framework and various Apache common, endless different logging framework, it makes the language such a hassle to deal with. Just my 2 cents.