ErrLookup › Blankj/AndroidUtilCode

Blankj/AndroidUtilCode

:fire: Android developers should collect the following utils(updating). · Java · 296 source files

Analyzed at 7b4caf9e54 on 2026-08-14. 103 documented errors.

Code / MessageTypeSeverityTags
ContentView is null.
exception error android, fragment, null-view, lifecycle
context is not instance of Activity.
exception error android, dialog, context, activity
presenterClass is null!
exception error android, mvp, null-argument, contract
presenter of <{}> is not added!
exception error android, mvp, registration, contract
onCreateViewHolder: get holder from view type failed.
exception error android, recyclerview, viewtype, rv
Invalid orientation. It should be either HORIZONTAL or VERTI
exception error android, recyclerview, itemdecoration, argument
u can't instantiate me...
exception warning android, utility, instantiation, reflection
u can't instantiate me...
exception warning android, utility, instantiation, reflection
u can't instantiate me...
exception warning android, utility, instantiation, reflection, location
u can't instantiate me...
exception warning android, utility, instantiation, reflection, calendar
u can't instantiate me...
exception warning android, utility, instantiation, reflection, i18n
u can't instantiate me...
exception warning android, utility, instantiation, reflection, init
u should init first
exception critical android, init, reflection, lifecycle, multiprocess
MediaType is not correct: "{}"
exception error android, http, media-type, argument, charset
u can't instantiate me...
exception warning android, utility, instantiation, reflection, activity
u can't instantiate me...
exception warning android, utility, instantiation, reflection, screen
u can't instantiate me...
exception warning android, utility, instantiation, reflection, app
u can't instantiate me...
exception warning android, utility, instantiation, reflection, array
Index: {}, array1 Length: 0
exception error android, array, index-out-of-bounds, argument
Index: {}, array1 Length: {}
exception error array, index-out-of-bounds, arrayutils, java
Index: {}, Length: 0
exception error array, index-out-of-bounds, null-array, arrayutils, java
Index: {}, Length: {}
exception error array, index-out-of-bounds, off-by-one, arrayutils, java
Not an array: {}
exception error array, illegal-argument, type-mismatch, closure, arrayutils, java
Array has incompatible type: {}
exception error array, illegal-argument, type-mismatch, tostring, arrayutils, java
u can't instantiate me...
exception info utility-class, private-constructor, reflection, barutils, android, java
u can't instantiate me...
exception info utility-class, private-constructor, reflection, brightnessutils, android, java
{} > {}
exception error cache, disk-cache, corruption, illegal-argument, cachediskutils, java
u can't instantiate me...
exception info utility-class, private-constructor, reflection, cleanutils, android, java
u can't instantiate me...
exception info utility-class, private-constructor, reflection, clickutils, android, java
u can't instantiate me...
exception info utility-class, private-constructor, reflection, clipboardutils, android, java
u can't instantiate me...
exception info utility-class, private-constructor, reflection, cloneutils, android, java
u can't instantiate me...
exception info utility-class, private-constructor, reflection, closeutils, android, java
u can't instantiate me...
exception info utility-class, private-constructor, reflection, collectionutils, android, java
Index cannot be negative: {}
exception error collection, index-out-of-bounds, negative-index, collectionutils, java
Entry does not exist: {}
exception error collection, index-out-of-bounds, iterator, map, collectionutils, java
Unsupported object type: {}
exception error collection, illegal-argument, type-mismatch, collectionutils, java
u can't instantiate me...
exception info utility-class, instantiation, design-pattern, reflection
u can't instantiate me...
exception info utility-class, instantiation, design-pattern, reflection
precision shouldn't be less than zero!
exception error validation, convert, formatting, argument-check
byteSize shouldn't be less than zero!
exception error validation, convert, formatting, argument-check
u can't instantiate me...
exception info utility-class, instantiation, design-pattern, reflection, crash
u can't instantiate me...
exception info utility-class, instantiation, design-pattern, reflection, debounce
The key is null.
exception error validation, debounce, argument-check, null-check
The duration is less than 0.
exception error validation, debounce, argument-check
u can't instantiate me...
exception info utility-class, instantiation, design-pattern, reflection, device
u can't instantiate me...
exception info utility-class, instantiation, design-pattern, reflection, encode
u can't instantiate me...
exception info utility-class, instantiation, design-pattern, reflection, encrypt
key must be between 1 and 256 bytes
exception error crypto, encrypt, validation, argument-check, rc4
u can't instantiate me...
exception info utility-class, instantiation, design-pattern, reflection, file-io
u can't instantiate me...
exception info utility-class, instantiation, design-pattern, reflection, file
u can't instantiate me...
exception info utility-class, instantiation, design-pattern, reflection, flashlight
u can't instantiate me...
exception info utility-class, instantiation, design-pattern, reflection, fragment
u can't instantiate me...
exception info utility-class, instantiation, design-pattern, reflection, gson, json
u can't instantiate me...
exception info utility-class, instantiation, design-pattern, reflection, image
u can't instantiate me...
exception info utility-class, instantiation, design-pattern, reflection, intent
u can't instantiate me...
exception error java, android, utility-class, instantiation, reflection
u can't instantiate me...
exception error java, android, utility-class, instantiation, keyboard
u can't instantiate me...
exception error java, android, utility-class, instantiation, locale
u can't instantiate me...
exception error java, android, utility-class, instantiation, logging
Array has incompatible type: {}
exception error java, android, logging, array, serialization
u can't instantiate me...
exception error java, android, utility-class, instantiation, map
comparator must not be null
exception error java, android, map, null-check, validation
u can't instantiate me...
exception error java, android, utility-class, instantiation, metadata
u can't instantiate me...
exception error java, android, utility-class, instantiation, network
u can't instantiate me...
exception error java, android, utility-class, instantiation, number
u can't instantiate me...
exception error java, android, utility-class, instantiation, object
{}
exception error java, android, null-pointer, validation
u can't instantiate me...
exception error java, android, utility-class, instantiation, path
segment of <{segment}> is illegal
validation error java, android, path, validation, illegal-argument
u can't instantiate me...
exception error java, android, utility-class, instantiation, telephony
u can't instantiate me...
exception error java, android, utility-class, instantiation, process
u can't instantiate me...
exception error java, android, utility-class, instantiation, regex
u can't instantiate me...
exception error java, android, utility-class, instantiation, resource
u can't instantiate me...
exception error java, android, utility-class, instantiation, rom
u can't instantiate me...
exception error java, android, utility-class, instantiation, sdcard
u can't instantiate me...
exception error android, utility-class, reflection, instantiation
u can't instantiate me...
exception error android, utility-class, reflection, instantiation, service
Set circle needn't set radius.
validation error android, shadow, builder, validation, config
invalid shadow size
validation error android, shadow, validation, argument
u can't instantiate me...
exception error android, utility-class, reflection, instantiation, shell
u can't instantiate me...
exception error android, utility-class, reflection, instantiation, dimension
u can't instantiate me...
exception error android, utility-class, reflection, instantiation, string
u can't instantiate me...
exception error android, utility-class, reflection, instantiation, exception
u can't instantiate me...
exception error android, utility-class, reflection, instantiation, time
u can't instantiate me...
exception error android, utility-class, reflection, instantiation, touch
u can't instantiate me...
exception error android, utility-class, reflection, instantiation, uri
u can't instantiate me...
exception error android, utility-class, reflection, instantiation, init
reflect failed.
exception critical android, init, reflection, application, lifecycle
u can't instantiate me...
exception error android, utility-class, reflection, instantiation, vibration
u can't instantiate me...
exception error android, utility-class, reflection, instantiation, zip
u can't instantiate me...
exception error android, utility-class, reflection, instantiation, debug, noop
u can't instantiate me...
exception error android, utility-class, reflection, instantiation, debug
onCreateViewHolder: get holder from view type failed.
exception error android, recyclerview, adapter, validation, config
Invalid orientation. It should be either HORIZONTAL or VERTI
validation error android, recyclerview, divider, validation, argument
no menus
validation error android, view, layout, utildebug
<" + className + "> and <" + apiInfo.implApiClass + "> impl
exception error gradle-plugin, api, bytecode, build, asm
The module of <" + dep.name + "> should set groupId & versio
exception error gradle, publishing, maven, pom, build
ApiExtension's apiUtilsClass is empty.
exception error gradle-plugin, api, config, build
u should impl these apis: " + noImplApis + "\n u can check i
exception error gradle-plugin, api, build, asm
No ApiUtils of ${apiUtilsClass} in $mProject.
exception error gradle-plugin, api, build, dependency, asm
BusExtension's busUtilsClass is empty.
exception error gradle-plugin, bus, config, build
These buses is not right: " + wrongBus + "\n u can check it
exception error gradle-plugin, bus, build, asm
No BusUtils of ${ext.busUtilsClass} in $mProject.
exception error gradle-plugin, bus, build, dependency, asm