SOMns: A Newspeak for Concurrency Research

The release includes extension modules, support for snapshot writing, and major fixes for concurrency issues. The update to to GraalVM 19 should eventually bring Windows support.

For more reproducible research, SOMns comes now with a maintained artifact setup out of the box.

New Features

• Add support for extension modules #252
• Object heap serialization #278, #271, #276
• Optimized tracing and restoring replay support #261, #257
• Added VirtualBox artifact #296, #299

Concurrency Issues

• Swap tracing buffers for blocked threads #297
• Renew Safepoint assumption only when invalid #291
• Blocking primitives cannot participate in safepoints #288, #286
• Fix object layout races #285

General Maintenance

• Update Truffle to >19.0.1 release #298
• Update Truffle to 1.0.0-rc5 #266, #295, #267
• Make the current instance of SomLanguage accessible for language server #277
• VMM'18 Demo and Kompos improvements #270
• Add Kent CI and update ReBench, Checkstyle, and Kompos dependencies #258
• Improve readability of Travis CI Logs by using folding #281
• Update basic-setup documentation #284
• Update list of publications in README #283
• Use CompilerDirectives::castExact instead of ValueProfiles #256
• Move Actor mailbox loop to Truffle #250
• Change Warmup in harnesses to simply disregard measurements #249
• Remove All.ns #248

Bug Fixes

• Set promise data fields to null on resolution #300, #294
• Fix Travis Error codes and Codespeed URL #287
• Minimize the Truffle-related building #282
• Remove dead code #275
• Fix potential NPE in ExpressionNode.toString #269
• Fix replay test flakiness #268
• Redesign Timer Prim #264
• Trace TimerPrim #262
• Ensure charAt: and file read/write are compatible with PE #260
• Signal exceptions without helper methods #251, #214