I was getting errors about Java 5 language level. ...

# intellij

[miha-x64]

I was getting errors about Java 5 language level. Set 7 everywhere in Project Structure and Settings. Getting problem with 'diamond' (new TreeSet<>())

Wrong 1st argument type. Found: java.util.TreeSet<java.lang.Object>, required: java.util.Set<java.lang.Long>

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. ❤️

[janvladimirmostert]

miha-x64: Are you using Maven? Maven is set to Java5 by default, unless you specify explicitly which version of Java to use.

[miha-x64]

Oh. Thank you, I've forgot sourceCompatibility in my build.gradle 🙂

[janvladimirmostert]

👍

[miha-x64]

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<>() as new TreeMap<Object>().

[sksk]

i think this is a Java 8 feature

[miha-x64]

@sksk Diamond is Java 7 feature.