Hi,

Executed in the latest Pharo 7 image (Pharo-7.0.0+alpha.build.1310.sha.a454977bb3d55bc4fcca3a57ac2fafcf137c0f30 (64 Bit)) the code below blocks the image (both with latest and stable vm on MacOs HighSierra). The vm does not crash but gets into a "Not Responding" state and does not get out:

Class new ��

�� superclass: GLMTransmission; ��

�� setFormat: GLMTransmission format;

�� classLayout: GLMTransmission classLayout copy; ��

�� yourself��

Code like this is used in Moose in some tests and in SmaCC in the rewrite engine:

Class new��

�� superclass: SmaCCRewriteMatchContext; ��

�� setFormat: SmaCCRewriteMatchContext format; ��

�� classLayout: SmaCCRewriteMatchContext classLayout copy; ��

�� yourself.��

This worked in Pharo 6. Bug or here should be a different way to do this?

Cheers,

Andrei