Pact-JVM fails with Android

We are trying to setup Pact for a new project using iOS and Android consumers. We are facing issues with Android when running Pact-jvm because of the Scala requirement and on iOS we also need to support iOS 7 (for iPhone 4) which seems to be incompatible with the existing Swift implementation. Did you guys find any workaround for these issues?

Our project is using au.com.dius:pact-jvm-consumer_2.11:3.2.1

I’ve publised an empty Android Project with just Pact and gives the same error:

https://github.com/jcarlos/AndroidPact

This one includes:

compile fileTree(dir: 'libs', include: ['*.jar'])
compile 'com.android.support:appcompat-v7:23.1.0'
compile 'com.android.support:design:23.1.0'
androidTestCompile 'au.com.dius:pact-jvm-consumer-junit_2.11:3.1.3'
androidTestCompile 'au.com.dius:pact-specification-test_2.11:3.1.3'
androidTestCompile 'au.com.dius:pact-jvm-matchers_2.11:3.1.3'
androidTestCompile 'au.com.dius:pact-jvm-consumer_2.11:3.1.3'
androidTestCompile 'au.com.dius:pact-jvm-consumer-specs2_2.11:3.1.3'
androidTestCompile 'au.com.dius:pact-jvm-model_2.11:3.1.3'
compile 'org.apache.httpcomponents:httpclient-android:4.3.5.1'
testCompile 'junit:junit:4.12'

I’ve downgraded to

androidTestCompile 'au.com.dius:pact-jvm-consumer_2.10:2.4.2'
androidTestCompile 'au.com.dius:pact-jvm-consumer-junit_2.11:2.4.2'

still getting the same error:

UNEXPECTED TOP-LEVEL EXCEPTION:
java.lang.RuntimeException: Exception parsing classes
    at com.android.dx.command.dexer.Main.processClass(Main.java:752)
    at com.android.dx.command.dexer.Main.processFileBytes(Main.java:718)
    at com.android.dx.command.dexer.Main.access$1200(Main.java:85)
    at com.android.dx.command.dexer.Main$FileBytesConsumer.processFileBytes(Main.java:1645)
    at com.android.dx.cf.direct.ClassPathOpener.processArchive(ClassPathOpener.java:284)
    at com.android.dx.cf.direct.ClassPathOpener.processOne(ClassPathOpener.java:166)
    at com.android.dx.cf.direct.ClassPathOpener.process(ClassPathOpener.java:144)
    at com.android.dx.command.dexer.Main.processOne(Main.java:672)
    at com.android.dx.command.dexer.Main.processAllFiles(Main.java:574)
    at com.android.dx.command.dexer.Main.runMonoDex(Main.java:311)
    at com.android.dx.command.dexer.Main.run(Main.java:277)
    at com.android.dx.command.dexer.Main.main(Main.java:245)
    at com.android.dx.command.Main.main(Main.java:106)
Caused by: com.android.dx.cf.iface.ParseException: bad utf-8 byte a0 at offset 00000004
    at com.android.dx.cf.cst.ConstantPoolParser.parseUtf8(ConstantPoolParser.java:374)
    at com.android.dx.cf.cst.ConstantPoolParser.parse0(ConstantPoolParser.java:262)
    at com.android.dx.cf.cst.ConstantPoolParser.parse0(ConstantPoolParser.java:294)
    at com.android.dx.cf.cst.ConstantPoolParser.parse(ConstantPoolParser.java:150)
    at com.android.dx.cf.cst.ConstantPoolParser.parseIfNecessary(ConstantPoolParser.java:124)
    at com.android.dx.cf.cst.ConstantPoolParser.getPool(ConstantPoolParser.java:115)
    at com.android.dx.cf.direct.DirectClassFile.parse0(DirectClassFile.java:482)
    at com.android.dx.cf.direct.DirectClassFile.parse(DirectClassFile.java:406)
    at com.android.dx.cf.direct.DirectClassFile.parseToInterfacesIfNecessary(DirectClassFile.java:388)
    at com.android.dx.cf.direct.DirectClassFile.getMagic(DirectClassFile.java:251)
    at com.android.dx.command.dexer.Main.parseClass(Main.java:764)
    at com.android.dx.command.dexer.Main.access$1500(Main.java:85)
    at com.android.dx.command.dexer.Main$ClassParserTask.call(Main.java:1684)
    at com.android.dx.command.dexer.Main.processClass(Main.java:749)
    ... 12 more
Caused by: java.lang.IllegalArgumentException: bad utf-8 byte a0 at offset 00000004
    at com.android.dx.rop.cst.CstString.throwBadUtf8(CstString.java:171)
    at com.android.dx.rop.cst.CstString.utf8BytesToString(CstString.java:143)
    at com.android.dx.rop.cst.CstString.<init>(CstString.java:200)
    at com.android.dx.cf.cst.ConstantPoolParser.parseUtf8(ConstantPoolParser.java:371)
    ... 25 more
1 error; aborting
Error:Execution failed for task ':app:preDexDebugAndroidTest'.
> com.android.ide.common.process.ProcessException: org.gradle.process.internal.ExecException: Process 'command '/Library/Java/JavaVirtualMachines/jdk1.8.0_45.jdk/Contents/Home/bin/java'' finished with non-zero exit value 1

[uglyog]

The problem is not with using pact-jvm with Android consumer apps (I have see some successful projects using it), it is with running the mock server and pact tests in the Android simulator. If the tests are run outside, then everything works fine.

I have been converting the Scala code to Groovy, but I feel that a statically typed language would suite better so I might look at Kotlin (which works well with Android). Once the conversion is done, then the tests can be run in the simulator (although I don’t see the value of doing this).

[uglyog]

Closing this as it does not make sense to run the pact mock server and tests in the Android simulator.