[jdt-dev] A problem that ecj doesn't have

[Stephan Herrmann <stephan.herrmann@xxxxxxxxx>]

Now for something nice (from JDT p.o.v.):

I just happened to look at https://bugs.openjdk.org/browse/JDK-8225508

A small Java program, where compilation with javac requires exponential heap 
size. The given example crashes javac (OOM) even above -Xmx3g (after 13 min).

ecj can easily crunch it with as little as -Xmx15m (under 5 secs).

I was told, that javac applies quite some optimizations to type inference (which 
contributes to the difficulty of comparing spec and impl). In this particular 
situation ecj must be doing something right. phew ...

cheers,
Stephan