When I downloaded the latest build of Android Studio, it won't start after accepting security warning. Looks like it silently fails. Further investigation showed that there is no bundled JDK in the .app package.

Here is the output I get when trying to start Studio from command line:

./studio                                                                  ─╯
2020-08-27 12:52:50.586 studio[14613:4454137] allVms required 1.8*,1.8+
2020-08-27 12:52:50.586 studio[14613:4454137] Can't find bundled java.The folder doesn't exist: /Applications/Android Studio 4.2 Preview.app/Contents/jbr
2020-08-27 12:52:50.586 studio[14613:4454137] Can't find bundled java.The folder doesn't exist: /Applications/Android Studio 4.2 Preview.app/Contents/jdk
2020-08-27 12:52:50.589 studio[14613:4454143] WorkingDirectory is absent in Info.plist. Current Directory: /Applications/Android Studio 4.2 Preview.app/Contents/MacOS
2020-08-27 12:52:50.589 studio[14613:4454143] fullFileName is: /Applications/Android Studio 4.2 Preview.app/Contents/bin/studio.vmoptions
2020-08-27 12:52:50.589 studio[14613:4454143] fullFileName exists: /Applications/Android Studio 4.2 Preview.app/Contents/bin/studio.vmoptions
2020-08-27 12:52:50.589 studio[14613:4454143] Value of STUDIO_VM_OPTIONS is (null)
2020-08-27 12:52:50.589 studio[14613:4454143] Processing VMOptions file at /Applications/Android Studio 4.2 Preview.app/Contents/bin/studio.vmoptions
2020-08-27 12:52:50.589 studio[14613:4454143] Done
2020-08-27 12:52:50.589 studio[14613:4454143] Processing VMOptions file at /Users/fobo66/Library/Application Support/Google/AndroidStudioPreview4.2/studio.vmoptions
2020-08-27 12:52:50.589 studio[14613:4454143] Done
2020-08-27 12:52:50.589 studio[14613:4454143] Processing VMOptions file at
2020-08-27 12:52:50.591 studio[14613:4454143] No content found
OpenJDK 64-Bit Server VM warning: Option UseConcMarkSweepGC was deprecated in version 9.0 and will likely be removed in a future release.
Error occurred during initialization of VM
Multiple garbage collectors selected

Studio Build: 4.2 Canary 8 (android-studio-ide-202.6787931-mac) Version of Gradle Plugin: 4.2.0-alpha08 Version of Gradle: 6.6 Version of Java: openjdk version "1.8.0_265" OS: macOS 10.15.6

Steps to Reproduce:

Download and extract Android Studio 4.2 Canary 8 from Android Developers website
Start the app
Accept security warning if not already accepted
Observe that app is not starting