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kotlinlang

I was getting errors about Java 5 language level. Set 7 everywhere in Project Structure and Settings. Getting problem with 'diamond' (`new TreeSet&lt;&gt;()`)
&gt; Wrong 1st argument type. Found: java.util.TreeSet&lt;java.lang.Object&gt;, required: java.util.Set&lt;java.lang.Long&gt;

And where are these memory tools? Can't find any mentions in the blog.

Actually, new IDEA looks faster, has better icons, and I really like parameter name badges. :heart:
4 replies
Actually, this not helped. I've got Oracle Java 1.8.0_121 as project SDK, Java 7 as Project language level, 1.7 as Project Bytecode Version, and `sourceCompatibility = 1.7` in build.gradle.
Compiler continues treating `new TreeMap&lt;&gt;()` as `new TreeMap&lt;Object&gt;()`.