Nitrite/Java: java.lang.NoClassDefFoundError: Failed resolution of: Ljava/time/Instant;

[bahmanebazoo]

Hi this is my code as your template:

private val nitriteDatabase = nitrite {
    file = File(application.filesDir, "database")
    autoCommitBufferSize = 2048
    compress = true
    autoCompact = false
}

and this is my logcat in android studio:

java.lang.NoClassDefFoundError: Failed resolution of: Ljava/time/Instant;
    at com.fasterxml.jackson.datatype.jsr310.JavaTimeModule.<init>(JavaTimeModule.java:118)
    at java.lang.Class.newInstance(Native Method)
    at java.util.ServiceLoader$ServiceIterator.next(ServiceLoader.java:214)
    at com.fasterxml.jackson.databind.ObjectMapper.findModules(ObjectMapper.java:1054)
    at com.fasterxml.jackson.databind.ObjectMapper.findModules(ObjectMapper.java:1038)
    at com.fasterxml.jackson.databind.ObjectMapper.findAndRegisterModules(ObjectMapper.java:1088)
    at org.dizitart.no2.mapper.JacksonFacade.createObjectMapper(JacksonFacade.java:83)
    at org.dizitart.kno2.KNO2JacksonFacade.createObjectMapper(KNO2JacksonFacade.kt:39)
    at org.dizitart.no2.mapper.JacksonFacade.createObjectMapper(JacksonFacade.java:95)
    at org.dizitart.no2.mapper.JacksonFacade.<init>(JacksonFacade.java:63)
    at org.dizitart.kno2.KNO2JacksonFacade.<init>(KNO2JacksonFacade.kt:36)
    at org.dizitart.kno2.KNO2JacksonFacade.<init>(KNO2JacksonFacade.kt:36)
    at org.dizitart.kno2.KNO2JacksonMapper.<init>(KNO2JacksonMapper.kt:33)
    at org.dizitart.kno2.Builder.createNitriteBuilder$potassium_nitrite(Builder.kt:132)
    at org.dizitart.kno2.BuilderKt.nitrite(Builder.kt:166)
    at org.dizitart.kno2.BuilderKt.nitrite$default(Builder.kt:163)

[anidotnet]

Have you built your app using jdk 8? Somehow java time is not present in your app runtime.

[bahmanebazoo]

Have you built your app using jdk 8? Somehow java time is not present in your app runtime.

[anidotnet]

Verify if minSdkVersion is 26 or above. https://developer.android.com/reference/java/time/Instant.html

[bahmanebazoo]

Verify if minSdkVersion is 26 or above. https://developer.android.com/reference/java/time/Instant.html

On sdk 26 or above is ok. it's on sdk 23 android 6.0.1
Minsdk is 21 as NO2 document says

[anidotnet]

Minsdk is 21 as NO2 document says

Have you found this specific version mentioned in nitirte documentation? Could you please point it out? I might need to correct it. The nitrite java library is compatible for api level 19, but potassium nitrite needs api level 26 by default.

Having said that, you can bypass that restriction also in case of potassium nitrite. You just have to set a custom nitrite mapper. See the logic here - https://github.com/nitrite/nitrite-java/blob/9afef01caab7a647dd6b43bd147288b8d6264780/potassium-nitrite/src/main/kotlin/org/dizitart/kno2/Builder.kt#L130

One of such example is there in junit tests, where threetenbp library is used in place of java time - https://github.com/nitrite/nitrite-java/blob/9afef01caab7a647dd6b43bd147288b8d6264780/potassium-nitrite/src/test/kotlin/org/dizitart/kno2/BackportJavaTimeTest.kt#L40 Create your own JacksonFacade appropriately and you will be good to go.

[bahmanebazoo]

by calling : val objectMapper = super.createObjectMapper() in inherited KNO2JacksonFacade() class, it calls objectMapper.registerModule(JavaTimeModule()) and makes crash

[bahmanebazoo]

I'm appreciate and really need your advice and help

[bahmanebazoo]

I changed my library to NO2 but JavaTimeModule is using as KNO2

[bahmanebazoo]

is it possible not to use:
public final class JavaTimeModule extends SimpleModule
?

[bahmanebazoo]

NO2 library didn't crash.
I need to contact you closer is it possible?
happy to know you.

[anidotnet]

by calling : val objectMapper = super.createObjectMapper() in inherited KNO2JacksonFacade() class, it calls objectMapper.registerModule(JavaTimeModule()) and makes crash

I advised you to make a custom JacksonFacade by extending JacksonFacade class like below

open class MyJacksonFacade(modules: Set<Module>? = setOf()) : JacksonFacade(modules) {
    override fun createObjectMapper(): ObjectMapper {
        val objectMapper = ObjectMapper();
        objectMapper.setVisibility(
                objectMapper.getSerializationConfig().getDefaultVisibilityChecker()
                        .withFieldVisibility(JsonAutoDetect.Visibility.ANY)
                        .withGetterVisibility(JsonAutoDetect.Visibility.NONE)
                        .withIsGetterVisibility(JsonAutoDetect.Visibility.NONE));
        objectMapper.configure(JsonParser.Feature.ALLOW_UNQUOTED_FIELD_NAMES, true);
        objectMapper.configure(JsonParser.Feature.ALLOW_SINGLE_QUOTES, true);
        objectMapper.configure(JsonParser.Feature.ALLOW_COMMENTS, true);
        objectMapper.configure(DeserializationFeature.FAIL_ON_UNKNOWN_PROPERTIES, false);

        // or you can use - val objectMapper = super.createObjectMapper(), if no issue 

        objectMapper.registerModule(NitriteIdModule());
        objectMapper.registerModule(KotlinModule())
        objectMapper.registerModule(Jdk8Module())
        // and whatever modules you need
        return objectMapper;
    }
}

Next you initialize your db with this facade

val db = nitrite {
    path = dbPath
    nitriteMapper = object : KNO2JacksonMapper(MyJacksonFacade()) {}
}