google/gson

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A Java serialization/deserialization library to convert Java Objects into JSON and back

Stars: 24.2k
Forks: 4.5k
Open beginner issues: 1
Indexed issues: 223
Avg merge: 6d 4h
Merged PRs (30d): 12

Dominant language: Java
License: Apache-2.0
Last GitHub push: Sep 14, 2026
Latest indexed: Sep 16, 2026
Contributing guide: Contributing guide
Code of conduct: Code of conduct
Beginner labels: No beginner labels indexed

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223 open issues indexed

Provide an @Required annotation to indicate that a field must be present Open

auto-migrated enhancement Milestone-Undefined Priority-Medium Type-Enhancement

google/gson#61 · 13 comments · 317 reactions · 0 assignees · Indexed Sep 16, 2026
Extend Expose annotation to support classes Open

auto-migrated enhancement Priority-Medium Type-Enhancement

google/gson#136 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 16, 2026
Support circular references Open

auto-migrated enhancement Priority-Medium Type-Enhancement

google/gson#137 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 16, 2026
Support handlers for unknown properties, useful for error handling Open

auto-migrated enhancement Priority-Critical Type-Enhancement

google/gson#188 · 25 comments · 14 reactions · 0 assignees · Indexed Sep 16, 2026
Add option to provide Locale for DateFormat Open

auto-migrated enhancement Priority-Medium Type-Enhancement

google/gson#223 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 16, 2026
First class support for polymorphism (subclasses!) Open

auto-migrated enhancement Priority-Medium Type-Enhancement

google/gson#231 · 7 comments · 0 reactions · 0 assignees · Indexed Sep 16, 2026
Read and write Json properties using methods (ie. getters & setters) Open

auto-migrated enhancement Milestone-Undefined Priority-Medium Type-Enhancement

google/gson#232 · 16 comments · 20 reactions · 0 assignees · Indexed Sep 16, 2026
Add support for custom actions on annotations Open

auto-migrated enhancement Priority-Medium Type-Enhancement

google/gson#269 · 8 comments · 3 reactions · 1 assignee · Indexed Sep 16, 2026
Need field-specific information in custom JsonSerializer Open

google/gson#306 · 5 comments · 0 reactions · 0 assignees · Indexed Sep 16, 2026
Don't call setAccessible(true) unless necessary Open

enhancement

google/gson#344 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 16, 2026
Decide what to do about '/' Open

enhancement

google/gson#356 · 6 comments · 0 reactions · 0 assignees · Indexed Sep 16, 2026
Fail if a JSON object has a duplicated property name Open

enhancement

google/gson#386 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 16, 2026
Provide object-model location in exceptions Open

enhancement

google/gson#395 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 16, 2026
gson does not deserialize interfaces, even with an InstanceCreator Open

enhancement

google/gson#411 · 6 comments · 2 reactions · 0 assignees · Indexed Sep 16, 2026
Support stream access to long string literals Open

enhancement

google/gson#415 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 16, 2026
Enhance support for InstanceCreator Open

enhancement

google/gson#432 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 16, 2026
Date deserializer for iso8601 with millis Open

enhancement

google/gson#433 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 16, 2026
Support configuration of serialization thru mix-in Open

enhancement

google/gson#451 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 16, 2026
JsonPrimitive string to number is inconsistent and bad Open

bug

google/gson#453 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 16, 2026
JsonWriter to offer control over when to newline Open

enhancement

google/gson#455 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 16, 2026
Allow ExclusionStrategy by field value. Open

enhancement

google/gson#459 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 16, 2026
Need immutable instances of JsonObject and JsonArray Open

enhancement

google/gson#467 · 1 comment · 4 reactions · 0 assignees · Indexed Sep 16, 2026
Make Gson class non-final and open to extension Open

enhancement

google/gson#474 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 16, 2026
Let JsonElement implement Cloneable and Serializable Open

enhancement

google/gson#485 · 4 comments · 0 reactions · 0 assignees · Indexed Sep 16, 2026
Gson fails to parse simple map Open

google/gson#501 · 7 comments · 0 reactions · 0 assignees · Indexed Sep 16, 2026
Publish a warning if a long is serialized as an int Open

enhancement

google/gson#505 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 16, 2026
deserializing object instead a collection with a single object into a collection Open

google/gson#506 · 6 comments · 0 reactions · 0 assignees · Indexed Sep 16, 2026
Exclude empty array in Gson serialization Open

enhancement

google/gson#512 · 2 comments · 6 reactions · 0 assignees · Indexed Sep 16, 2026
JsonPrimitive's hashCode() function fails to obey the hashCode contract for some numeric values Open

bug

google/gson#523 · 0 comments · 2 reactions · 0 assignees · Indexed Sep 16, 2026
I need to implement GSON serialization filtering based on template. in GSON. in GSON exclusionStrategy , shouldSkipField , I need to know field's concrete class, where am I in class hierarchy Open

enhancement

google/gson#528 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 16, 2026
Problem Serialize De-serialize: List of Objects that contain Abstract types ! Open

google/gson#529 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 16, 2026
Circular relationship gives stack overflow Open

enhancement

google/gson#530 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 16, 2026
Feature request: Force inclusion of specific field when null Open

enhancement

google/gson#532 · 1 comment · 3 reactions · 0 assignees · Indexed Sep 16, 2026
User guide is wrong: Inner classes can now be serialized/deserialized? Open

google/gson#534 · 5 comments · 0 reactions · 0 assignees · Indexed Sep 16, 2026
Cannot register type adapter for Date class Open

google/gson#535 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 16, 2026
Adds Gson.buildFrom(Gson): exposes instance creator Open

google/gson#537 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 16, 2026
Way to ignore (not serialize) cyclic reference Open

enhancement

google/gson#539 · 0 comments · 1 reaction · 0 assignees · Indexed Sep 16, 2026
object graph recursion with polymorphism using GraphAdapterBuilder and RuntimeTypeAdapterFactory Open

google/gson#542 · 2 comments · 1 reaction · 0 assignees · Indexed Sep 16, 2026
JsonSyntaxException is used to wrap IOExceptions in fromJson instead of using JsonIOException Open

bug

google/gson#548 · 3 comments · 0 reactions · 0 assignees · Indexed Sep 16, 2026
Make non-executable prefixes configurable Open

enhancement

google/gson#551 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 16, 2026
JsonArray should implement Collection [patch] Open

enhancement

google/gson#560 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 16, 2026
long to string value conversion doesn't work properly Open

google/gson#563 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 16, 2026
BigInteger parsing is inconsistent with Long parsing Open

google/gson#574 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 16, 2026
Add the ability to disable Json-array serialization of Maps when using complex key serialization Open

enhancement

google/gson#575 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 16, 2026
Deserialization of parameterized types throws an IllegalArgumentException Open

google/gson#576 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 16, 2026
Registering type adapters in GsonBuilder is not overwriting existing type Open

enhancement

google/gson#584 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 16, 2026
JsonSerializer/Deserializer: Allow reflection-oriented implementations Open

enhancement

google/gson#594 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 16, 2026
StackOverflowError on Android L Open

bug

google/gson#597 · 4 comments · 0 reactions · 0 assignees · Indexed Sep 16, 2026
Add support for decorating JsonSerializer / JsonDeserializer Open

google/gson#599 · 4 comments · 5 reactions · 0 assignees · Indexed Sep 16, 2026
Boolean no error passing a String value Open

bug

google/gson#600 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 16, 2026

google/gson

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