Missing scheduler on platforms

[cmelchior]

On our latest release I am seeing some weird behavior on Github Actions:

Starting process 'Gradle Test Executor 1'. Working directory: /home/runner/work/realm-kotlin/realm-kotlin/packages/test-base Command: /opt/hostedtoolcache/Java_Zulu_jdk/11.0.20-8/x64/bin/java -Dorg.gradle.internal.worker.tmpdir=/home/runner/work/realm-kotlin/realm-kotlin/packages/test-base/build/tmp/jvmTest/work -Dorg.gradle.native=false @/home/runner/.gradle/.tmp/gradle-worker-classpath412522939317337655txt -Xmx512m -Dfile.encoding=UTF-8 -Duser.country -Duser.language=en -Duser.variant -ea worker.org.gradle.process.internal.worker.GradleWorkerMain 'Gradle Test Executor 1'
Successfully started process 'Gradle Test Executor 1'
/work/packages/external/core/src/realm/object-store/util/scheduler.cpp:133: [realm-core-13.19.0] No built-in scheduler implementation for this platform. Register your own with Scheduler::set_default_factory()
/home/runner/.cache/io.realm.kotlin/cabe917019091876f1f961bcf664d49d26519d7f/librealmc.so(+0xac046b) [0x7fc0db6bc46b]
/home/runner/.cache/io.realm.kotlin/cabe917019091876f1f961bcf664d49d26519d7f/librealmc.so(+0xac06da) [0x7fc0db6bc6da]
/home/runner/.cache/io.realm.kotlin/cabe917019091876f1f961bcf664d49d26519d7f/librealmc.so(+0xac05a0) [0x7fc0db6bc5a0]
/home/runner/.cache/io.realm.kotlin/cabe917019091876f1f961bcf664d49d26519d7f/librealmc.so(+0x54fd17) [0x7fc0db14bd17]
/home/runner/.cache/io.realm.kotlin/cabe917019091876f1f961bcf664d49d26519d7f/librealmc.so(+0x552a49) [0x7fc0db14ea49]
/home/runner/.cache/io.realm.kotlin/cabe917019091876f1f961bcf664d49d26519d7f/librealmc.so(+0x55160a) [0x7fc0db14d60a]
/home/runner/.cache/io.realm.kotlin/cabe917019091876f1f961bcf664d49d26519d7f/librealmc.so(+0x54fcd5) [0x7fc0db14bcd5]
/home/runner/.cache/io.realm.kotlin/cabe917019091876f1f961bcf664d49d26519d7f/librealmc.so(+0x3b7ae3) [0x7fc0dafb3ae3]
/home/runner/.cache/io.realm.kotlin/cabe917019091876f1f961bcf664d49d26519d7f/librealmc.so(+0x3b7ee0) [0x7fc0dafb3ee0]
/home/runner/.cache/io.realm.kotlin/cabe917019091876f1f961bcf664d49d26519d7f/librealmc.so(realm_scheduler_make_default+0x14) [0x7fc0dafb3b47]
/home/runner/.cache/io.realm.kotlin/cabe917019091876f1f961bcf664d49d26519d7f/librealmc.so(Java_io_realm_kotlin_internal_interop_realmcJNI_realm_1scheduler_1make_1default+0x25) [0x7fc0daf4b8fd]
[0x7fc11876b930]
!!! IMPORTANT: Please report this at https://github.com/realm/realm-core/issues/new/choose
Thread name: Test worker @co

it looks like the default scheduler is missing on Ubuntu.

A similar issue was reported in Core for Windows: realm/realm-core#6951

[cmelchior]

Fixed in 1.11.1