Error trying to test XML parsing with Robolectric

Question

I'm using Robolectric and trying to test parsing a XML response. I'm getting the following exception:

java.lang.NoClassDefFoundError: java/lang/AutoCloseable
    at android.util.Xml.parse(Xml.java:80)
    at com.test.app.network.parser.soap.BaseSoapParser.doParse(BaseSoapParser.java:57)
    at com.test.app.network.parser.soap.RecipeParser.parse(RecipeParser.java:57)
    at com.test.app.network.command.RecipeCommand.searchRecipes(RecipeCommand.java:64)
    at com.test.app.data.PrepopulateDB.prepopulateDB(PrepopulateDB.java:53)
    at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:45)
    at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:15)
    at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:42)
    at org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:20)
    at org.junit.internal.runners.statements.RunBefores.evaluate(RunBefores.java:28)
    at org.robolectric.RobolectricTestRunner$2.evaluate(RobolectricTestRunner.java:230)
    at org.junit.runners.ParentRunner.runLeaf(ParentRunner.java:263)
    at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:68)
    at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:47)
    at org.junit.runners.ParentRunner$3.run(ParentRunner.java:231)
    at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:60)
    at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:229)
    at org.junit.runners.ParentRunner.access$000(ParentRunner.java:50)
    at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:222)
    at org.robolectric.RobolectricTestRunner$1.evaluate(RobolectricTestRunner.java:172)
    at org.junit.runners.ParentRunner.run(ParentRunner.java:300)
    at org.eclipse.jdt.internal.junit4.runner.JUnit4TestReference.run(JUnit4TestReference.java:50)
    at org.eclipse.jdt.internal.junit.runner.TestExecution.run(TestExecution.java:38)
    at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:467)
    at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:683)
    at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run(RemoteTestRunner.java:390)
    at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main(RemoteTestRunner.java:197)
Caused by: java.lang.ClassNotFoundException: java.lang.AutoCloseable
    at java.net.URLClassLoader$1.run(URLClassLoader.java:202)
    at java.security.AccessController.doPrivileged(Native Method)
    at java.net.URLClassLoader.findClass(URLClassLoader.java:190)
    at java.lang.ClassLoader.loadClass(ClassLoader.java:306)
    at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:301)
    at java.lang.ClassLoader.loadClass(ClassLoader.java:247)
    at org.robolectric.bytecode.AsmInstrumentingClassLoader.loadClass(AsmInstrumentingClassLoader.java:100)
    at android.util.Xml.$$robo$$Xml_e8aa_parse(Xml.java:80)
    at android.util.Xml.parse(Xml.java)
    at com.test.app.network.parser.soap.BaseSoapParser.doParse(BaseSoapParser.java:57)
    at com.test.test.app.network.parser.soap.RecipeParser.parse(RecipeParser.java:57)
    at com.test.app.network.command.RecipeCommand.searchRecipes(RecipeCommand.java:64)
    at com.test.app.data.PrepopulateDB.prepopulateDB(PrepopulateDB.java:53)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
    at java.lang.reflect.Method.invoke(Method.java:597)
    ... 22 more

The thing is that "AutoCloseable" was only added in Java 7 and since Android uses Java 6 I can understand why the class isn't found - any help will be appreciated.

Libraries:

robolectric-2.3-20140204.032758-112-jar-with-dependencies.jar

android-all-4.4_r1-robolectric-0.jar / android-all-4.3_r2-robolectric-0.jar

Update: I tested this using JDK 6 and Target API 18 with the same result.

Update 2: It seems that the source of the problem is this class: org.apache.harmony.xml.ExpatReader it is using AutoClosable which isn't available on Java 6 or Android API 18.

[Looks to be a known issue with the dev](https://groups.google.com/forum/#!topic/robolectric-dev/lFPpp__aEIw) — StoopidDonut, Mar 19 '14 at 16:29
That's actually half of the problem, I would expect to be able to do this with Java 6 and Android 4.3, it fails as well. — Raanan, Mar 19 '14 at 18:02

Guillaume Serre · Answer 1 · 2014-03-17T17:38:44.440

0

Actually this interface is in the Android SDK : https://developer.android.com/reference/java/lang/AutoCloseable.html

Added in API level 19

Before level 19, it was there but "hidden".

edited Mar 17 '14 at 17:38

answered Mar 17 '14 at 17:33

Guillaume Serre

307
2
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This doesn't solve the issue as Robolectric doesn't work with API level 19. AFAIK. – Raanan Mar 17 '14 at 20:19

score 0 · Answer 2 · answered Mar 24 '14 at 14:00

0

This error happens when you compile your project with a higher API version than some of your required classes, your target is API 18, but as Guillaume sais, when you use AutoCloseable you're trying to load a class which is not added until API 19. So your application crashes at runtime. You need to modify your minSDK version of your project or consider an alternative.

answered Mar 24 '14 at 14:00

Guillermo Merino

3,197
2
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This isn't an application, the app works perfectly when compiled with API level 18 and 19. This is a test case using Robolectric which fails at this point. As I wrote in an update this also happens when I run the test with JDK 1.6 and API 18 - so Robolectric is introducing some files that aren't compatible - this is probably the issue I agree, I'm still looking for a solution. – Raanan Mar 24 '14 at 16:57
1

Can you check this answer about Robolectric emulateSdk feature? http://stackoverflow.com/a/20848052/1668144 maybe it's helpful for you – Guillermo Merino Mar 24 '14 at 16:59
Thanks for your help. This doesn't work I think it's a Robolectric bug in the classes imported for xml parsing in the API level 18 version. (they aren't compatible with the API level as far as I can tell.) IMO This will only be solved by either Robolectric supporting API level 19 which it doesn't or fixing those files, I opened an issue on Robolectric. – Raanan Mar 24 '14 at 17:13
https://github.com/robolectric/robolectric/issues/810 it seems that Roboelectric doesn't support API 19, also emulateSdk only works with API levels 16 , 17 and 18. Sorry for suggesting that in the previous commentary. IMO your best choice is to use a different tester. – Guillermo Merino Mar 24 '14 at 17:35
Trying to convince the backend to switch this function to JSON ;) also a way to solve my specific problem (not this issue though). – Raanan Mar 24 '14 at 18:11

Eric · Answer 3 · 2014-03-20T11:48:15.260

-1

Download the SDK bundle [1], extract it and then update/overwrite your Eclipse and Android SDK (just make a backup copy of eclipse and android-sdk folder beforehand). Of course afterwards make all the necessary updates within the SDK and Eclipse IDE

[1] https://developer.android.com/sdk/index.html

edited Mar 20 '14 at 11:48

answered Mar 20 '14 at 11:32

Eric

1,685
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Just a thought. Had similar problem with my own project and after updating to the newest SDK/Eclipse it went away. Worth a try – Eric Mar 21 '14 at 13:58
I'm a great believer in voodoo but it didn't help. :( – Raanan Mar 24 '14 at 13:33
Hmm that's a shame, are you sure you're using the latest updates adt jdk etc? Check the following link for more information: http://stackoverflow.com/questions/20480090/do-android-apps-support-jdk-6-or-7-java-code – Eric Mar 24 '14 at 20:03

Error trying to test XML parsing with Robolectric

3 Answers3