{"id":3874,"date":"2020-02-27T23:28:13","date_gmt":"2020-02-27T23:28:13","guid":{"rendered":"https:\/\/www.gubatron.com\/blog\/?p=3874"},"modified":"2020-02-27T23:28:46","modified_gmt":"2020-02-27T23:28:46","slug":"coding-solved-gradle-build-android-breaks-after-upgrading-a-dependency-with-nullpointerexception-thrown-at-programclass-constantpoolentryaccept","status":"publish","type":"post","link":"https:\/\/www.gubatron.com\/blog\/coding-solved-gradle-build-android-breaks-after-upgrading-a-dependency-with-nullpointerexception-thrown-at-programclass-constantpoolentryaccept\/","title":{"rendered":"[CODING\/SOLVED] gradle build (android) breaks after upgrading a dependency with NullPointerException thrown at ProgramClass.constantPoolEntryAccept"},"content":{"rendered":"

You’ve just upgraded one of your Android project’s dependencies and when you .\/gradlew assembleRelease<\/code> the build process breaks.<\/p>\n

You invoke it again with --stacktrace<\/code> to find the following exception:<\/p>\n

 <\/p>\n

[pastacode lang=”java” manual=”java.lang.NullPointerException%0Aat%20proguard.classfile.ProgramClass.constantPoolEntryAccept(ProgramClass.java%3A537)%0Aat%20proguard.shrink.UsageMarker.markConstant(UsageMarker.java%3A1246)%0Aat%20proguard.shrink.UsageMarker.visitRequiresInfo(UsageMarker.java%3A1040)%0Aat%20proguard.classfile.attribute.module.ModuleAttribute.requiresAccept(ModuleAttribute.java%3A138)%0Aat%20proguard.shrink.UsageMarker.visitModuleAttribute(UsageMarker.java%3A739)%0Aat%20proguard.classfile.attribute.module.ModuleAttribute.accept(ModuleAttribute.java%3A99)%0Aat%20proguard.classfile.ProgramClass.attributesAccept(ProgramClass.java%3A619)%0Aat%20proguard.shrink.UsageMarker.markProgramClassBody(UsageMarker.java%3A124)%0Aat%20proguard.shrink.UsageMarker.visitProgramClass(UsageMarker.java%3A94)%0Aat%20proguard.classfile.visitor.MultiClassVisitor.visitProgramClass(MultiClassVisitor.java%3A67)%0Aat%20proguard.classfile.visitor.MultiClassVisitor.visitProgramClass(MultiClassVisitor.java%3A67)%0Aat%20proguard.classfile.visitor.ClassNameFilter.visitProgramClass(ClassNameFilter.java%3A128)%0Aat%20proguard.classfile.ProgramClass.accept(ProgramClass.java%3A430)%0Aat%20proguard.classfile.ClassPool.classesAccept(ClassPool.java%3A124)%0Aat%20proguard.classfile.visitor.AllClassVisitor.visitClassPool(AllClassVisitor.java%3A45)%0Aat%20proguard.classfile.visitor.MultiClassPoolVisitor.visitClassPool(MultiClassPoolVisitor.java%3A85)%0Aat%20proguard.classfile.ClassPool.accept(ClassPool.java%3A110)%0Aat%20proguard.shrink.Shrinker.execute(Shrinker.java%3A90)%0Aat%20proguard.ProGuard.shrink(ProGuard.java%3A381)%0Aat%20proguard.ProGuard.execute(ProGuard.java%3A145)%0Aat%20proguard.ProGuard.main(ProGuard.java%3A572)” message=”” highlight=”” provider=”manual”\/]<\/p>\n

This is a ProGuard bug<\/a>, which my friend, has been solved by the ProGuard team ages ago, and your build environment is using an old ProGuard version.<\/p>\n

Add this to your build.gradle<\/code> to force it to use the latest version (as of today it’s 6.2.2, check the latest version here<\/a>)<\/p>\n

[pastacode lang=”java” manual=”buildscript%20%7B%0A%20%20%20%20…%0A%20%20%20%20dependencies%20%7B%0A%20%20%20%20%20%20%20%20…%0A%20%20%20%20%20%20%20%20classpath%20’net.sf.proguard%3Aproguard-gradle%3A6.2.2’%0A%20%20%7D%0A%7D%0A%7D” message=”force a newer proguard version for your android build” highlight=”1,3,5″ provider=”manual”\/]<\/p>\n","protected":false},"excerpt":{"rendered":"

You’ve just upgraded one of your Android project’s dependencies and when you .\/gradlew assembleRelease the build process breaks. You invoke it again with –stacktrace to find the following exception:   [pastacode lang=”java” manual=”java.lang.NullPointerException%0Aat%20proguard.classfile.ProgramClass.constantPoolEntryAccept(ProgramClass.java%3A537)%0Aat%20proguard.shrink.UsageMarker.markConstant(UsageMarker.java%3A1246)%0Aat%20proguard.shrink.UsageMarker.visitRequiresInfo(UsageMarker.java%3A1040)%0Aat%20proguard.classfile.attribute.module.ModuleAttribute.requiresAccept(ModuleAttribute.java%3A138)%0Aat%20proguard.shrink.UsageMarker.visitModuleAttribute(UsageMarker.java%3A739)%0Aat%20proguard.classfile.attribute.module.ModuleAttribute.accept(ModuleAttribute.java%3A99)%0Aat%20proguard.classfile.ProgramClass.attributesAccept(ProgramClass.java%3A619)%0Aat%20proguard.shrink.UsageMarker.markProgramClassBody(UsageMarker.java%3A124)%0Aat%20proguard.shrink.UsageMarker.visitProgramClass(UsageMarker.java%3A94)%0Aat%20proguard.classfile.visitor.MultiClassVisitor.visitProgramClass(MultiClassVisitor.java%3A67)%0Aat%20proguard.classfile.visitor.MultiClassVisitor.visitProgramClass(MultiClassVisitor.java%3A67)%0Aat%20proguard.classfile.visitor.ClassNameFilter.visitProgramClass(ClassNameFilter.java%3A128)%0Aat%20proguard.classfile.ProgramClass.accept(ProgramClass.java%3A430)%0Aat%20proguard.classfile.ClassPool.classesAccept(ClassPool.java%3A124)%0Aat%20proguard.classfile.visitor.AllClassVisitor.visitClassPool(AllClassVisitor.java%3A45)%0Aat%20proguard.classfile.visitor.MultiClassPoolVisitor.visitClassPool(MultiClassPoolVisitor.java%3A85)%0Aat%20proguard.classfile.ClassPool.accept(ClassPool.java%3A110)%0Aat%20proguard.shrink.Shrinker.execute(Shrinker.java%3A90)%0Aat%20proguard.ProGuard.shrink(ProGuard.java%3A381)%0Aat%20proguard.ProGuard.execute(ProGuard.java%3A145)%0Aat%20proguard.ProGuard.main(ProGuard.java%3A572)” message=”” highlight=”” provider=”manual”\/] This is a ProGuard bug, which my friend, has been solved by the ProGuard team ages ago, and your […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"jetpack_post_was_ever_published":false,"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_publicize_message":"","jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":true,"jetpack_social_options":{"image_generator_settings":{"template":"highway","default_image_id":0,"font":"","enabled":false},"version":2}},"categories":[15],"tags":[],"class_list":["post-3874","post","type-post","status-publish","format-standard","hentry","category-code"],"jetpack_publicize_connections":[],"jetpack_featured_media_url":"","jetpack_sharing_enabled":true,"jetpack_shortlink":"https:\/\/wp.me\/p5Unzf-10u","jetpack-related-posts":[{"id":2762,"url":"https:\/\/www.gubatron.com\/blog\/frostwire-for-android-breaks-past-its-first-250k-lines-of-source-code\/","url_meta":{"origin":3874,"position":0},"title":"FrostWire for Android breaks past its first 250k lines of source code","author":"gubatron","date":"July 31, 2012","format":false,"excerpt":"-------------------------------------------------------------------------------- Language files blank comment code -------------------------------------------------------------------------------- Java 1950 101133 77855 256590 XML 126 480 2351 9308 XSD 2 28 57 187 Bourne Again Shell 1 30 17 147 -------------------------------------------------------------------------------- SUM: 2079 101671 80280 266232 -------------------------------------------------------------------------------- Help wanted","rel":"","context":"In "Code"","block_context":{"text":"Code","link":"https:\/\/www.gubatron.com\/blog\/category\/code\/"},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]},{"id":3020,"url":"https:\/\/www.gubatron.com\/blog\/how-to-avoid-android-compilationbuilding-issues-setting-up-the-eclipse-buildpath-correctly\/","url_meta":{"origin":3874,"position":1},"title":"How to avoid Android compilation\/building issues – Setting up the Eclipse Buildpath correctly","author":"gubatron","date":"May 21, 2013","format":false,"excerpt":"This post is the product of about 48 hours of not being able to work on what I was supposed to be working because I had to deal with build issues in Eclipse. Hopefully If you follow these steps you will be able to solve some of the issues you\u2026","rel":"","context":"In "Android"","block_context":{"text":"Android","link":"https:\/\/www.gubatron.com\/blog\/category\/android\/"},"img":{"alt_text":"Screen Shot 2013-05-21 at 12.13.46 PM","src":"https:\/\/i0.wp.com\/www.gubatron.com\/blog\/wp-content\/uploads\/2013\/05\/Screen-Shot-2013-05-21-at-12.13.46-PM.png?resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/www.gubatron.com\/blog\/wp-content\/uploads\/2013\/05\/Screen-Shot-2013-05-21-at-12.13.46-PM.png?resize=350%2C200 1x, https:\/\/i0.wp.com\/www.gubatron.com\/blog\/wp-content\/uploads\/2013\/05\/Screen-Shot-2013-05-21-at-12.13.46-PM.png?resize=525%2C300 1.5x"},"classes":[]},{"id":2793,"url":"https:\/\/www.gubatron.com\/blog\/frostwire-for-android-1-0-preview-screenshots\/","url_meta":{"origin":3874,"position":2},"title":"FrostWire for Android 1.0 – Preview Screenshots","author":"gubatron","date":"October 25, 2012","format":false,"excerpt":"The following screens have been taken from the build currently running on my phone. We'll be releasing this baby in a few more days now, in the meantime you can try a similar build and let me know how it went.","rel":"","context":"In "Android"","block_context":{"text":"Android","link":"https:\/\/www.gubatron.com\/blog\/category\/android\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/www.gubatron.com\/blog\/wp-content\/uploads\/2012\/10\/frostwire-for-android.1.0.x-4.jpg?resize=350%2C200","width":350,"height":200},"classes":[]},{"id":3351,"url":"https:\/\/www.gubatron.com\/blog\/oneplus-one-unboxing\/","url_meta":{"origin":3874,"position":3},"title":"OnePlus One unboxing","author":"gubatron","date":"September 10, 2014","format":false,"excerpt":"Charger and phone come in separate boxes. Charger does not come with a cable. The phone does. I guess it must be a statement for modularity and perhaps you get to buy only the accesories you need, if you need just a cable, you just buy the cable. 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