Crash installing APKs on API 15-18 emulators

[sampalmer]

Describe the bug
Crash installing APKs on API 15-18 emulators

Bundletool version(s) affected
Version: 0.9.0

Stacktrace

C:\Utilities\bundletool>java -jar bundletool-all-0.9.0.jar install-apks --apks=app.apks
The APKs have been extracted in the directory: C:\Users\sam__\AppData\Local\Temp\762967780459134954
[BT:0.9.0] Error: null
java.lang.NullPointerException
        at com.google.common.base.Preconditions.checkNotNull(Preconditions.java:787)
        at com.google.common.base.Joiner.toString(Joiner.java:454)
        at com.google.common.base.Joiner.appendTo(Joiner.java:106)
        at com.google.common.base.Joiner.appendTo(Joiner.java:154)
        at com.google.common.base.Joiner.join(Joiner.java:197)
        at com.google.common.base.Joiner.join(Joiner.java:187)
        at com.google.common.base.Joiner.join(Joiner.java:205)
        at com.android.ddmlib.Device.installRemotePackage(Device.java:1024)
        at com.android.ddmlib.Device.installPackage(Device.java:902)
        at com.android.ddmlib.Device.installPackage(Device.java:880)
        at com.android.ddmlib.Device.installPackage(Device.java:869)
        at com.android.tools.build.bundletool.device.DdmlibDevice.installApks(DdmlibDevice.java:113)
        at com.android.tools.build.bundletool.device.ApksInstaller.installOnDevice(ApksInstaller.java:94)
        at com.android.tools.build.bundletool.device.ApksInstaller.installApks(ApksInstaller.java:82)
        at com.android.tools.build.bundletool.device.ApksInstaller.installApks(ApksInstaller.java:44)
        at com.android.tools.build.bundletool.commands.InstallApksCommand.execute(InstallApksCommand.java:165)
        at com.android.tools.build.bundletool.BundleToolMain.main(BundleToolMain.java:88)
        at com.android.tools.build.bundletool.BundleToolMain.main(BundleToolMain.java:46)

To Reproduce

1. Ensure no physical devices are connected to the computer
2. Launch the API 15, API 16, API 17 or API 18 Android emulator
3. (Due to an unrelated bug, if the emulator screen stays black then you may need to open the emulator's config.ini and switch on both hw.gpu.enabled and hw.gpu.mode)
4. Run java -jar bundletool-all-0.9.0.jar build-apks --bundle=app.aab --output=apps.apks
5. Run java -jar bundletool-all-0.9.0.jar install-apks --apks=app.apks

See artifacts.zip

Expected behavior
App should be installed on the emulator

Known workaround
Use the API 29 emulator

[plecesne]

Dupe of #49.