* ConsumerTarget.java: Remove redundant stack push.

Fixes GitLab issue #74 "JVM crash on (as ulong 1)".
1 job for master in 5 minutes and 15 seconds
Status Job ID Name Coverage
  Build And Test
failed #489569939


Name Stage Failure
build_script Build And Test
  -e '(close-output-port out)'
#tdiff tmpP ./ppfile.out
make[1]: diff: Command not found
make[1]: *** [Makefile:691: check-ppfile] Error 127
make[1]: Leaving directory '/builds/kashell/Kawa/testsuite'
make: *** [Makefile:1443: check-recursive] Error 1
Running after_script
Uploading artifacts for failed job
ERROR: Job failed: exit code 1