Ok, this turned out to be a problem with build -- it looks like new ABCL version has more stuff, and jvm tried to open too many files. I had to rise nofile ulimit to 8192.
I didn't notice this from start because build process didn't check errors during compiling with abcl stage and proceeded to create jar file regardless. It said that build was successful so I didn't check error messages which scrolled away by that time.