CODEWITHSUNDEEP
androidgradle
Adam Lee
Adam Lee

Reputation: 586

Gradle: How to get rid of duplicate classes error

I am getting the following duplicate class error when I run my Android application (I didn't include all the errors, but the duplicate errors are all coming from org.apache.commons.lang3.* and org.apache.commons.logging.*):

Duplicate class org.apache.commons.lang3.AnnotationUtils found in modules commons-lang3-3.4.jar (org.apache.commons:commons-lang3:3.4) and commons-lang3-3.7.jar (commons-lang3-3.7.jar)
Duplicate class org.apache.commons.lang3.AnnotationUtils$1 found in modules commons-lang3-3.4.jar (org.apache.commons:commons-lang3:3.4) and commons-lang3-3.7.jar (commons-lang3-3.7.jar)
...........
Duplicate class org.apache.commons.logging.impl.WeakHashtable found in modules commons-logging-1.2.jar (commons-logging-1.2.jar) and commons-logging-1.2.jar (commons-logging:commons-logging:1.2)
Duplicate class org.apache.commons.logging.impl.WeakHashtable$1 found in modules commons-logging-1.2.jar (commons-logging-1.2.jar) and commons-logging-1.2.jar (commons-logging:commons-logging:1.2)
Duplicate class org.apache.commons.logging.impl.WeakHashtable$Entry found in modules commons-logging-1.2.jar (commons-logging-1.2.jar) and commons-logging-1.2.jar (commons-logging:commons-logging:1.2)
Duplicate class org.apache.commons.logging.impl.WeakHashtable$Referenced found in modules commons-logging-1.2.jar (commons-logging-1.2.jar) and commons-logging-1.2.jar (commons-logging:commons-logging:1.2)
Duplicate class org.apache.commons.logging.impl.WeakHashtable$WeakKey found in modules commons-logging-1.2.jar (commons-logging-1.2.jar) and commons-logging-1.2.jar (commons-logging:commons-logging:1.2)

The error stems from this line of code in the gradle (I need to use the docx4j library because my app has to read in the contents of MS Word files selected by the user):

implementation "org.docx4j:docx4j:3.3.0"

Below is the complete code of my gradle file:

apply plugin: 'com.android.application'

apply plugin: 'kotlin-android'

apply plugin: 'kotlin-android-extensions'

android {
    compileSdkVersion 29
    buildToolsVersion "29.0.2"
    defaultConfig {
        applicationId "com.example.diffchecker"
        minSdkVersion 21
        targetSdkVersion 29
        multiDexEnabled true
        versionCode 1
        versionName "1.0"
        testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"
    }
    compileOptions {
        sourceCompatibility JavaVersion.VERSION_1_8
        targetCompatibility JavaVersion.VERSION_1_8
    }
    buildTypes {
        release {
            minifyEnabled false
            proguardFiles getDefaultProguardFile('proguard-android-optimize.txt'), 'proguard-rules.pro'
        }
    }
}

dependencies {
    implementation fileTree(include: ['*.jar'], dir: 'libs')
    implementation "org.jetbrains.kotlin:kotlin-stdlib-jdk7:$kotlin_version"
    implementation 'androidx.appcompat:appcompat:1.1.0'
    implementation 'androidx.core:core-ktx:1.1.0'
    implementation 'androidx.constraintlayout:constraintlayout:1.1.3'
    implementation 'io.github.java-diff-utils:java-diff-utils:4.5'
    // For developers using AndroidX in their applications
    implementation 'pub.devrel:easypermissions:3.0.0'
    // For developers using the Android Support Library
    implementation 'pub.devrel:easypermissions:2.0.1'
    implementation 'com.google.android.gms:play-services-ads:18.3.0'
    testImplementation 'junit:junit:4.12'
    androidTestImplementation 'androidx.test.ext:junit:1.1.1'
    androidTestImplementation 'androidx.test.espresso:espresso-core:3.2.0'
    implementation files('libs/commons-text-1.2.jar')
    //Thanks for using https://jar-download.com
    implementation 'org.webjars.bowergithub.telecomsante:pdf-viewer:2.2.0'
    implementation 'com.tom_roush:pdfbox-android:1.8.10.1'
    implementation 'com.bskim:maxheightscrollview:1.0.0@aar'
    implementation 'androidx.gridlayout:gridlayout:1.0.0'

    implementation files('libs/commons-logging-1.2.jar')
    implementation files('libs/commons-lang3-3.7.jar')

    // Docx4j is the library used to read Word documents
    // https://mvnrepository.com/artifact/org.docx4j/docx4j
    implementation "org.docx4j:docx4j:3.3.0"
}

How do I use the docx4j library in my gradle without running into duplicate conflicts with the commons-lang3 and commons-logging libraries?

Upvotes: 1

Views: 2654

Answers (2)

Christian
Christian

Reputation: 1

Erase local lib and put this on the gradle

https://mvnrepository.com/artifact/org.apache.commons/commons-lang3

implementation group: 'org.apache.commons', name: 'commons-lang3', version: '3.11'

Upvotes: 0

jeprubio
jeprubio

Reputation: 18032

I think I found a similar way of what we did at the beginning but this time with both exclusions.

Try this:

implementation ('org.docx4j:docx4j:3.3.0') {
    ['org.apache.commons','commons-logging'].each {
        exclude group: "$it"
    }
}

Upvotes: 2

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