{"record":{"id":"3d21a39513541dc0","repo":"amitshekhariitbhu/Android-Debug-Database","slug":"debugdbencryptinitprovider-providerinfo-cannot-be-null","errorCode":null,"errorMessage":"DebugDBEncryptInitProvider ProviderInfo cannot be null.","messagePattern":"DebugDBEncryptInitProvider ProviderInfo cannot be null\\.","errorType":"exception","errorClass":"NullPointerException","httpStatus":null,"severity":"error","filePath":"debug-db-encrypt/src/main/java/com/amitshekhar/debug/encrypt/DebugDBEncryptInitProvider.java","lineNumber":53,"sourceCode":"    @Override\n    public Uri insert(Uri uri, ContentValues values) {\n        return null;\n    }\n\n    @Override\n    public int delete(Uri uri, String selection, String[] selectionArgs) {\n        return 0;\n    }\n\n    @Override\n    public int update(Uri uri, ContentValues values, String selection, String[] selectionArgs) {\n        return 0;\n    }\n\n    @Override\n    public void attachInfo(Context context, ProviderInfo providerInfo) {\n        if (providerInfo == null) {\n            throw new NullPointerException(\"DebugDBEncryptInitProvider ProviderInfo cannot be null.\");\n        }\n        // So if the authorities equal the library internal ones, the developer forgot to set his applicationId\n        if (\"com.amitshekhar.debug.encrypt.DebugDBEncryptInitProvider\".equals(providerInfo.authority)) {\n            throw new IllegalStateException(\"Incorrect provider authority in manifest. Most likely due to a \"\n                    + \"missing applicationId variable in application\\'s build.gradle.\");\n        }\n        super.attachInfo(context, providerInfo);\n    }\n\n}\n","sourceCodeStart":35,"sourceCodeEnd":64,"githubUrl":"https://github.com/amitshekhariitbhu/Android-Debug-Database/blob/bf149df61f03e7191f0a0cc71dfb2352f91173b2/debug-db-encrypt/src/main/java/com/amitshekhar/debug/encrypt/DebugDBEncryptInitProvider.java#L35-L64","documentation":"DebugDBEncryptInitProvider.attachInfo throws this NullPointerException when the Android framework passes a null ProviderInfo into attachInfo during content-provider registration. The library requires valid provider metadata (authority string) to initialize the encrypted debug database, so it fails fast rather than continuing with a broken registration. This almost always indicates the provider was not properly declared/merged in the merged AndroidManifest.","triggerScenarios":"Android framework instantiates DebugDBEncryptInitProvider and calls attachInfo(Context, ProviderInfo) with providerInfo == null (line 53 check). This happens when the provider declaration is malformed or stripped from the merged manifest, or when the provider is instantiated outside normal framework registration (e.g., manually in tests) without supplying ProviderInfo.","commonSituations":"Manifest merger removing or corrupting the library's provider entry; overriding the provider in the app manifest with tools:node=\"remove\" then still triggering init; unit/instrumentation tests constructing the provider manually; build variants where the debug-db-encrypt manifest is excluded.","solutions":["Verify the library's provider is present in the merged manifest: check app/build/intermediates/merged_manifests for com.amitshekhar.debug.encrypt.DebugDBEncryptInitProvider.","Remove any tools:node=\"remove\" override or manifest exclusion that strips the provider declaration.","If overriding the provider yourself, declare it with a valid android:authorities attribute using ${applicationId}.provider.","Do not instantiate DebugDBEncryptInitProvider manually; let the Android framework create it so attachInfo receives a valid ProviderInfo.","Clean and rebuild (./gradlew clean :app:assembleDebug) to rule out stale manifest merger output."],"exampleFix":"// before (AndroidManifest.xml) - provider removed\n<provider android:name=\"com.amitshekhar.debug.encrypt.DebugDBEncryptInitProvider\" tools:node=\"remove\" />\n\n// after - provider declared with applicationId-based authority\n<provider\n    android:name=\"com.amitshekhar.debug.encrypt.DebugDBEncryptInitProvider\"\n    android:authorities=\"${applicationId}.DebugDBEncryptInitProvider\"\n    android:exported=\"false\" />","handlingStrategy":"validation","validationCode":"// At startup, verify the provider is registered with a valid authority in the merged manifest\nPackageManager pm = context.getPackageManager();\nComponentName cn = new ComponentName(context, \"com.amitshekhar.debug.encrypt.DebugDBEncryptInitProvider\");\nProviderInfo info = pm.getProviderInfo(cn, 0);\nif (info.authority == null || info.authority.equals(\"com.amitshekhar.debug.encrypt.DebugDBEncryptInitProvider\")) {\n    throw new IllegalStateException(\"DebugDBEncryptInitProvider authority not substituted - check applicationId in build.gradle\");\n}","typeGuard":"boolean isValidProviderInfo(ProviderInfo info) {\n    return info != null && info.authority != null && !info.authority.isEmpty();\n}","tryCatchPattern":"try {\n    DebugDBEncryptInitialize.init(this);\n} catch (NullPointerException | IllegalStateException e) {\n    Log.e(\"DebugDB\", \"Provider init failed: \" + e.getMessage());\n}","preventionTips":["Never remove or override the library's provider declaration in your manifest without re-declaring it with ${applicationId}.","Keep applicationId set in defaultConfig and review it in code review for new modules/flavors.","Inspect the merged manifest when adding new libraries with content providers.","Do not instantiate ContentProviders manually outside the Android framework."],"tags":["android","content-provider","manifest","null-argument"],"backgroundTag":"null-argument","analyzedSha":"bf149df61f03e7191f0a0cc71dfb2352f91173b2","analyzedAt":"2026-09-12T15:02:14.977Z","contentChangedAt":"2026-09-12T15:02:14.977Z","schemaVersion":2},"datasetVersion":"2026-09-15T23:17:13.987Z"}