Problem on Android during EnhancedRandom initialization

[daffycricket]

Hi guys,
I encounter the following exception at runtime when trying to run an Android app using random-beans 3.7.0:

java.lang.NoSuchMethodError: No static method valueOf(Ljava/time/LocalDate;)Ljava/sql/Date; in class Ljava/sql/Date; or its super classes (declaration of 'java.sql.Date' appears in /system/framework/core-oj.jar)
     at io.github.benas.randombeans.randomizers.registry.InternalRandomizerRegistry.init(InternalRandomizerRegistry.java:95)
     at io.github.benas.randombeans.EnhancedRandomBuilder.lambda$setupRandomizerRegistries$5$EnhancedRandomBuilder(EnhancedRandomBuilder.java:448)
     at io.github.benas.randombeans.EnhancedRandomBuilder$$Lambda$0.accept(Unknown Source:4)
     at java.lang.Iterable.forEach(Iterable.java:75)
     at io.github.benas.randombeans.EnhancedRandomBuilder.setupRandomizerRegistries(EnhancedRandomBuilder.java:448)
     at io.github.benas.randombeans.EnhancedRandomBuilder.build(EnhancedRandomBuilder.java:432)
     at io.github.benas.randombeans.EnhancedRandomBuilder.aNewEnhancedRandom(EnhancedRandomBuilder.java:87)
     at org.nla.dbtests.LoadDataIntentService.onHandleIntent(LoadDataIntentService.java:40)
     at android.app.IntentService$ServiceHandler.handleMessage(IntentService.java:68)
     at android.os.Handler.dispatchMessage(Handler.java:105)
     at android.os.Looper.loop(Looper.java:164)
     at android.os.HandlerThread.run(HandlerThread.java:65)

The code that generates this exception is pretty basic :p
EnhancedRandom enhancedRandom = EnhancedRandomBuilder.aNewEnhancedRandom();

The problem is related to a call to the static method java.sql.Date.valueOf() I don't get it because it seems this method exists, at least it's found by me IDE. Maybe a class loader problem on Android ?

I use Android Studio 3 beta 5 so the project can use java 8 features like lambdas and streams (without having to use jack compiler).

apply plugin: 'com.android.application'
apply plugin: 'com.google.gms.google-services'

android {
    compileSdkVersion 26
    buildToolsVersion "26.0.1"
    defaultConfig {
        applicationId "org.nla.dbtests"
        minSdkVersion 24
        targetSdkVersion 26
        versionCode 1
        versionName "1.0"
        testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
    }
    compileOptions {
        sourceCompatibility JavaVersion.VERSION_1_8
        targetCompatibility JavaVersion.VERSION_1_8
    }
    buildTypes {
        release {
            minifyEnabled true
            proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
        }
    }

    packagingOptions {
        exclude 'META-INF/ASL2.0'
        exclude 'META-INF/LICENSE'
        exclude 'META-INF/NOTICE'
        exclude 'META-INF/DEPENDENCIES'
    }
}

dependencies {
    implementation fileTree(dir: 'libs', include: ['*.jar'])
    implementation 'com.jakewharton:butterknife:8.8.1'
    implementation 'com.android.support:design:26.+'
    implementation 'com.couchbase.lite:couchbase-lite-android:1.4.0'
    implementation 'com.android.support:appcompat-v7:26.+'
    implementation 'com.android.support.constraint:constraint-layout:1.0.2'
    implementation 'com.google.code.gson:gson:2.7'
    implementation 'com.google.firebase:firebase-database:9.0.0'
    implementation 'io.realm:realm-android:0.82.1'
    implementation 'io.github.benas:random-beans:3.7.0'

    testImplementation 'junit:junit:4.12'
    androidTestImplementation('com.android.support.test.espresso:espresso-core:2.2.2', {
        exclude group: 'com.android.support', module: 'support-annotations'
    })
    annotationProcessor 'com.jakewharton:butterknife-compiler:8.8.1'
    annotationProcessor 'io.realm:realm-android:0.82.1'
}

Note the lib is not included in test path, but in actual compile path, because I want to use it for a specific feature in the actual app.

Any idea regarding this issue ?

Thanks in advance guys :)

[fmbenhassine]

Hi,

Thank you for reporting this issue!

I remember we had some problems running RB in android ( see #62 ), but I'm not sure if this is related.

Please give us some time to work on this issue and we'll get back to you asap.

Kr
Mahmoud

[PascalSchumacher]

I guess android does not support JDBC version 4.2 yet (at least according to https://developer.android.com/reference/java/sql/package-summary.html only supports 4.1). Therefore the java.sql.Date#valueOf(LocalDate) method can not be found and this error occurs.

[fmbenhassine]

Hi @daffycricket

I do confirm the comment of @PascalSchumacher , the valueOf(LocalDate date) added in JDBC 4.2 is not supported yet by android : https://developer.android.com/reference/java/sql/Date.html.

Only valueOf(String s) is supported for now.

But this means random beans is not usable (yet) with android and java 8..

Kr
Mahmoud

[fmbenhassine]

Hi,

I updated the known-limitations section to mention that RB is not compatible with Android.

Unfortunately, I am not able to put too much effort in making it Android compatible. Thank you for your comprehension. I'm closing this issue.

Best regards,
Mahmoud