Android: Jumbo Mode vs Multidex

java android gradle dex
Ivan Thai picture Ivan Thai · May 28, 2015 · Viewed 17.8k times · Source

I'm not totally sure what the difference is between setting dex option "jumbomode" to true vs adding multidex support.

Setting jumbo mode to true or multidex to true seems to fix the problem below

AGPBI: {"kind":"SIMPLE","text":"UNEXPECTED TOP-LEVEL EXCEPTION:","position":{},"original":"UNEXPECTED TOP-LEVEL EXCEPTION:"}
AGPBI: {"kind":"SIMPLE","text":"com.android.dex.DexIndexOverflowException: Cannot merge new index 65772 into a non-jumbo instruction!","position":{},"original":"com.android.dex.DexIndexOverflowException: Cannot merge new index 65772 into a non-jumbo instruction!"}
AGPBI: {"kind":"SIMPLE","text":"\tat com.android.dx.merge.InstructionTransformer.jumboCheck(InstructionTransformer.java:109)","position":{},"original":"\tat com.android.dx.merge.InstructionTransformer.jumboCheck(InstructionTransformer.java:109)"}
AGPBI: {"kind":"SIMPLE","text":"\tat com.android.dx.merge.InstructionTransformer.access$800(InstructionTransformer.java:26)","position":{},"original":"\tat com.android.dx.merge.InstructionTransformer.access$800(InstructionTransformer.java:26)"}
AGPBI: {"kind":"SIMPLE","text":"\tat com.android.dx.merge.InstructionTransformer$StringVisitor.visit(InstructionTransformer.java:72)","position":{},"original":"\tat com.android.dx.merge.InstructionTransformer$StringVisitor.visit(InstructionTransformer.java:72)"}
AGPBI: {"kind":"SIMPLE","text":"\tat com.android.dx.io.CodeReader.callVisit(CodeReader.java:114)","position":{},"original":"\tat com.android.dx.io.CodeReader.callVisit(CodeReader.java:114)"}
AGPBI: {"kind":"SIMPLE","text":"\tat com.android.dx.io.CodeReader.visitAll(CodeReader.java:89)","position":{},"original":"\tat com.android.dx.io.CodeReader.visitAll(CodeReader.java:89)"}
AGPBI: {"kind":"SIMPLE","text":"\tat com.android.dx.merge.InstructionTransformer.transform(InstructionTransformer.java:49)","position":{},"original":"\tat com.android.dx.merge.InstructionTransformer.transform(InstructionTransformer.java:49)"}
...

Answer

phdfong - Kenneth Fong picture phdfong - Kenneth Fong · May 28, 2015

Jumbo Mode, when reading https://source.android.com/devices/tech/dalvik/dalvik-bytecode.html, the const-string/jumbo is the jumbo mode for string. It is about the opcode such that "op vAA, string@BBBBBBBB" versus "op vAA, string@BBBB", 32 bits versus 16 bit.

Multi Dex is to allow to load classes from more than one dex file. The primary classes.dex must contain the classes necessary for calling this class methods. Secondary dex files found in the application apk will be added to the classloader after first call to MultiDex.install(Context) see https://developer.android.com/reference/android/support/multidex/MultiDex.html

Related questions

Multiple dex files define <my package>/BuildConfig, can't find the cause:

I'm using the new gradle build system and I'm facing the following problem: UNEXPECTED TOP-LEVEL EXCEPTION: com.android.dex.DexException: Multiple dex files define Lcom/kibo/mobi/BuildConfig; at com.android.dx.merge.DexMerger.readSortableTypes(DexMerger.java:594) at com.android.…

Read More
com.android.build.transform.api.TransformException

I am trying to integrate Google sign in, in my app, I added these libraries: compile 'com.google.android.gms:play-services-identity:8.1.0' compile 'com.google.android.gms:play-services-plus:8.1.0' Also add this to project build gradle: classpath 'com.google.gms:…

Read More
':app:lintVitalRelease' error when generating signed apk

I've tried to upload my apk on google play and encountered an error message: "You uploaded a debuggable APK. For security reasons you need to disable debugging before it can be published in Google Play. Learn more about debuggable APKs." …

Read More