[slf4j-user] Problem with SLF4J and Android
Chad La Joie
chad.lajoie at switch.ch
Sat Jul 11 11:25:01 CEST 2009
I don't know anything about Android, but in cases like this, with a
standard Java app, I would suggest the following:
- grab the SLF4J jars from the actual maintainer's site and test with
them as a way to verify that the product shipping with the jar didn't
make some sort of custom change
- ensure that no other version of the jar are on the classpath (for
example, because they shipped with another application that is also
being run)
Max Braun wrote:
> Does someone have an idea where I could go from here?
>
> Am 03.07.2009 um 15:27 schrieb Max Braun:
>
>> I put your code in a basic Android project using slf4j-api-1.5.6.jar
>> and slf4j-jdk14-1.5.6.jar from openrdf-sesame-2.3-pr1-sdk.zip. The
>> error is the same that I got before:
>>
>> I/dalvikvm( 715): DexOpt: access denied from
>> Lorg/slf4j/LoggerFactory; to field
>> Lorg/slf4j/impl/StaticLoggerBinder;.SINGLETON
>> W/dalvikvm( 715): VFY: unable to resolve static field 59 (SINGLETON)
>> in Lorg/slf4j/impl/StaticLoggerBinder;
>> W/dalvikvm( 715): VFY: rejecting opcode 0x62 at 0x0006
>> W/dalvikvm( 715): VFY: rejected
>> Lorg/slf4j/LoggerFactory;.getSingleton
>> ()Lorg/slf4j/impl/StaticLoggerBinder;
>> W/dalvikvm( 715): Verifier rejected class Lorg/slf4j/LoggerFactory;
>> D/AndroidRuntime( 715): Shutting down VM
>> W/dalvikvm( 715): threadid=3: thread exiting with uncaught exception
>> (group=0x4000fe70)
>> E/AndroidRuntime( 715): Uncaught handler: thread main exiting due to
>> uncaught exception
>> E/AndroidRuntime( 715): java.lang.VerifyError: org.slf4j.LoggerFactory
>> E/AndroidRuntime( 715): at
>> de.unikoblenz.isweb.csxpoi.slf4jtest.SLF4JTest.onCreate(SLF4JTest.java:15)
>>
>> E/AndroidRuntime( 715): at
>> android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1123)
>>
>> E/AndroidRuntime( 715): at
>> android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2231)
>>
>> E/AndroidRuntime( 715): at
>> android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2284)
>> E/AndroidRuntime( 715): at
>> android.app.ActivityThread.access$1800(ActivityThread.java:112)
>> E/AndroidRuntime( 715): at
>> android.app.ActivityThread$H.handleMessage(ActivityThread.java:1692)
>> E/AndroidRuntime( 715): at
>> android.os.Handler.dispatchMessage(Handler.java:99)
>> E/AndroidRuntime( 715): at android.os.Looper.loop(Looper.java:123)
>> E/AndroidRuntime( 715): at
>> android.app.ActivityThread.main(ActivityThread.java:3948)
>> E/AndroidRuntime( 715): at
>> java.lang.reflect.Method.invokeNative(Native Method)
>> E/AndroidRuntime( 715): at
>> java.lang.reflect.Method.invoke(Method.java:521)
>> E/AndroidRuntime( 715): at
>> com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:782)
>>
>> E/AndroidRuntime( 715): at
>> com.android.internal.os.ZygoteInit.main(ZygoteInit.java:540)
>> E/AndroidRuntime( 715): at dalvik.system.NativeStart.main(Native
>> Method)
>>
>>
>> Am 03.07.2009 um 14:27 schrieb Ceki Gulcu:
>>
>>>
>>> Try running the following program.
>>>
>>> import org.slf4j.*;
>>>
>>> class Main {
>>> public static void main(String[] args) {
>>>
>>> Logger logger = LoggerFactory.getLogger(Main.class);
>>> logger.debug("hello Android");
>>> }
>>> }
>>>
>>> and see if it runs under Android.
>>>
>>> Max Braun wrote:
>>>> Sure, what do you want me to try?
>>>> Am 02.07.2009 um 19:47 schrieb Ceki Gulcu:
>>>>>
>>>>> I went and downloaded openrdf-sesame-2.3-pr1-sdk.zip. I could find,
>>>>> in addition to slf4j-api.jar, both slf4j-jdk14.jar and logback-*.jar.
>>>>>
>>>>> Would it be possible for you to try running a small test
>>>>> application under Android? openrdf-sesame is quite big...
>>>>>
>>>>> Max Braun wrote:
>>>>>> Sorry, I meant "slf4j-api-1.5.8.jar and slf4j-jdk14-1.5.8.jar" of
>>>>>> course. It shouldn't have anything to do with differing versions
>>>>>> then, right?
>>>>>> Max
>>>>>> Am 02.07.2009 um 18:47 schrieb Ceki Gulcu:
>>>>>>>
>>>>>>> Hello Max,
>>>>>>>
>>>>>>> Which version of slf4j-api is on your class path?
>>>>>>>
>>>>>>> "I'm using slf4j-jdk14-1.5.8.jar and slf4j-jdk14-1.5.8.jar" is
>>>>>>> not very clear.
>>>>>>>
>>>>>>> See also
>>>>>>> http://slf4j.org/faq.html#compatibility
>>>>>>> http://slf4j.org/faq.html#IllegalAccessError
>>>>>>> http://slf4j.org/manual.html
>>>>>>>
>>>>>>> BR
>>>>>>>
>>>>>>> Max Braun wrote:
>>>>>>>> Hi,
>>>>>>>> I'm trying to get Sesame to run on Android. There seems to be a
>>>>>>>> problem with SLF4J, which is used by Sesame, resulting in the
>>>>>>>> following error:
>>>>>>>> E/ActivityThread( 724): Failed to find provider info for
>>>>>>>> com.google.settings
>>>>>>>> I/dalvikvm( 724): DexOpt: access denied from
>>>>>>>> Lorg/slf4j/LoggerFactory; to field
>>>>>>>> Lorg/slf4j/impl/StaticLoggerBinder;.SINGLETON
>>>>>>>> W/dalvikvm( 724): VFY: unable to resolve static field 3716
>>>>>>>> (SINGLETON) in Lorg/slf4j/impl/StaticLoggerBinder;
>>>>>>>> W/dalvikvm( 724): VFY: rejecting opcode 0x62 at 0x0006
>>>>>>>> W/dalvikvm( 724): VFY: rejected
>>>>>>>> Lorg/slf4j/LoggerFactory;.getSingleton
>>>>>>>> ()Lorg/slf4j/impl/StaticLoggerBinder;
>>>>>>>> W/dalvikvm( 724): Verifier rejected class Lorg/slf4j/LoggerFactory;
>>>>>>>> I hope someone here can help me with this.
>>>>>>>> I'm using slf4j-jdk14-1.5.8.jar and slf4j-jdk14-1.5.8.jar. My
>>>>>>>> initial question in the Sesame forum can be found here:
>>>>>>>> http://www.openrdf.org/forum/mvnforum/viewthread?thread=2145
>>>>>>>> Thanks,
>>>>>>>> Max
>>>>>>>
>>>>>>> --
>>>>>>> Ceki Gülcü
>>>>>>> Logback: The reliable, generic, fast and flexible logging
>>>>>>> framework for Java.
>>>>>>> http://logback.qos.ch
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>>>>>
>>>>> --
>>>>> Ceki Gülcü
>>>>> Logback: The reliable, generic, fast and flexible logging framework
>>>>> for Java.
>>>>> http://logback.qos.ch
>>>>> _______________________________________________
>>>>> user mailing list
>>>>> user at slf4j.org
>>>>> http://www.slf4j.org/mailman/listinfo/user
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>>>
>>> --
>>> Ceki Gülcü
>>> Logback: The reliable, generic, fast and flexible logging framework
>>> for Java.
>>> http://logback.qos.ch
>>> _______________________________________________
>>> user mailing list
>>> user at slf4j.org
>>> http://www.slf4j.org/mailman/listinfo/user
>>
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>
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SWITCH
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Chad La Joie, Software Engineer, Net Services
Werdstrasse 2, P.O. Box, 8021 Zürich, Switzerland
phone +41 44 268 15 75, fax +41 44 268 15 68
chad.lajoie at switch.ch, http://www.switch.ch
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