dojo build (buildscripts/build.sh --bin java fails when certain regex in js source files

[chiefgeek]

When building layers (with java) and one of the source files has the following regex in it, the build fails and says there was an error:

        this._emailValidationRegEx =
        /^[a-z0-9!#$%&'*+/=?^_`{|}~-]+(?:\.[a-z0-9!#$%&'*+/=?^_`{|}~-]+)*@(?:[a-z0-9](?:[a-z0-9-]*[a-z0-9])?\.)+[a-z0-9](?:[a-z0-9-]*[a-z0-9])?$/i;

The builds with node don't fail with this error but they do randomly fail with socket errors. see below a sample (profile with maxOptimizationProcesses: 2, doesn't seem to help either):

starting processing resource AST...
starting executing global optimizations...
starting writing resources...
[Error: This socket is closed.]
Error: This socket is closed.
    at Socket._write (net.js:638:19)
    at doWrite (_stream_writable.js:226:10)
    at writeOrBuffer (_stream_writable.js:216:5)
    at Socket.Writable.write (_stream_writable.js:183:11)
    at Socket.write (net.js:616:40)
    at Object.proc.write (/var/lib/jenkins/jobs/hotfix-frontend/workspace/resources/v3/other/dojo-release-1.11.2-src/util/build/transforms/optimizer/sendJob.js:98:20)
    at sendJob (/var/lib/jenkins/jobs/hotfix-frontend/workspace/resources/v3/other/dojo-release-1.11.2-src/util/build/transforms/optimizer/sendJob.js:40:28)
    at /var/lib/jenkins/jobs/hotfix-frontend/workspace/resources/v3/other/dojo-release-1.11.2-src/util/build/transforms/optimizer/closure.js:18:7
    at /var/lib/jenkins/jobs/hotfix-frontend/workspace/resources/v3/other/dojo-release-1.11.2-src/util/build/node/fs.js:38:9
    at Object.oncomplete (fs.js:108:15)

[dylan]

Given the recent updates to a more recent version of the Closure Compiler with 1.12, I'd be curious is this is still an issue. Let's investigate.

[dylan]

Moving 1.12.1 tickets to 1.12.2