hashgraph/pbj

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A performance optimized Google Protocol Buffers code generator, parser, and Gradle module.

Stars: 44
Forks: 15
Open beginner issues: 0
Indexed issues: 66
Avg merge: 1d 15h
Merged PRs (30d): 12

Dominant language: Java
License: Apache-2.0
Last GitHub push: Sep 14, 2026
Latest indexed: Sep 17, 2026
Contributing guide: Contributing guide
Code of conduct: Code of conduct
Beginner labels: good first issue

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66 open issues indexed

Add support for proto "import public" Open

hashgraph/pbj#11 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 17, 2026
PBJ does not. support Protobuf Groups Open

hashgraph/pbj#12 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 17, 2026
PBJ does not support packed repeated field Open

hashgraph/pbj#13 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 17, 2026
Adding @javax.annotation.Generated annotation to all generated code would be great Open

Good First Issue

hashgraph/pbj#22 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 17, 2026
JSON Parsing is Slow Open

hashgraph/pbj#50 · 2 comments · 0 reactions · 0 assignees · Indexed Sep 17, 2026
Add UTF8 String support to Readable/WritableSequentialData implementations Open

hashgraph/pbj#61 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 17, 2026
Allow mapping of Timestamp to Instant Open

hashgraph/pbj#62 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 17, 2026
BufferedData readBytes() and writeBytes() are not symmetric Open

hashgraph/pbj#77 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 17, 2026
(File)Channel support in Data I/O Open

hashgraph/pbj#80 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 17, 2026
Add command line support for proto record class compilation Open

Good First Issue

hashgraph/pbj#124 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 17, 2026
Extract sub-message processing to `com.hedera.pbj.runtime.ProtoParserTools` Open

hashgraph/pbj#132 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 17, 2026
Minor ugly code formatting in generated code Open

Good First Issue

hashgraph/pbj#192 · 2 comments · 0 reactions · 0 assignees · Indexed Sep 17, 2026
readBytes() side effects Open

hashgraph/pbj#194 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 17, 2026
Improve performance: CharBufferToWritableSequentialData.read/writeBytes Open

Good First Issue

hashgraph/pbj#198 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 17, 2026
Improve performance: WritableStreamingData.writeBytes(ByteBuffer) Open

Good First Issue

hashgraph/pbj#199 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 17, 2026
Improve performance: writeBytes(InputStream src) Open

Good First Issue

hashgraph/pbj#201 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 17, 2026
Improve performance: *BufferedData.writeBytes(RandomAccessData) Open

Good First Issue

hashgraph/pbj#202 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 17, 2026
Improve performance: ReadableSequentialData.readBytes(ByteBuffer) Open

Good First Issue

hashgraph/pbj#203 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 17, 2026
Improve performance: ReadableStreamingData.readBytes(BufferedData) Open

Good First Issue

hashgraph/pbj#204 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 17, 2026
Extended Validation in Schemas Open

hashgraph/pbj#209 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 17, 2026
Add support for proto3 `optional` keyword Open

hashgraph/pbj#225 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 17, 2026
Ensure hash codes immutability Open

hashgraph/pbj#230 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 17, 2026
Improve OneOf tests Open

hashgraph/pbj#232 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 17, 2026
Break Gradle plugin out of pbj-core and pbj-compiler Open

hashgraph/pbj#260 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 17, 2026
Add document generation for PBJ Open

New Feature

hashgraph/pbj#272 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 17, 2026
Implement a new method in Codec to provide record's estimated size in memory Open

Performance

hashgraph/pbj#336 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 17, 2026
ProtoParserToolsTest.testReadString() fails if string length is zero Open

Good First Issue

hashgraph/pbj#397 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 17, 2026
Performance: Replace oneOf if statements with switches Open

Good First Issue

hashgraph/pbj#400 · 3 comments · 0 reactions · 0 assignees · Indexed Sep 17, 2026
VarInt performance with SIMD Open

hashgraph/pbj#423 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 17, 2026
ci: implement codecov on repo Open

Audit github_actions

hashgraph/pbj#437 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 17, 2026
ci: implement snyk Open

Audit github_actions

hashgraph/pbj#438 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 17, 2026
ci: implement codeql Open

Audit github_actions

hashgraph/pbj#439 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 17, 2026
ci: add automatic linting to repo Open

hashgraph/pbj#440 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 17, 2026
Support OpenTelemetry Traces and connection metrics in gRPC stubs Open

hashgraph/pbj#453 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 17, 2026
Options to reject duplicate and deprecated fields while strict parsing Open

hashgraph/pbj#507 · 0 comments · 0 reactions · 1 assignee · Indexed Sep 17, 2026
Add support for custom max size per field Open

hashgraph/pbj#551 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 17, 2026
Revisit String performance Open

hashgraph/pbj#620 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 17, 2026
Test generator should import all dependencies Open

hashgraph/pbj#641 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 17, 2026
Support GRPC REST Transcoding Open

hashgraph/pbj#644 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 17, 2026
Feature Request: Publish pbj-compiler JAR to Maven Central Open

hashgraph/pbj#649 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 17, 2026
Add XDR serialization format Open

hashgraph/pbj#772 · 0 comments · 0 reactions · 1 assignee · Indexed Sep 17, 2026
Add SBE serialization format Open

hashgraph/pbj#779 · 0 comments · 0 reactions · 1 assignee · Indexed Sep 17, 2026
Update and test varint performance Open

hashgraph/pbj#789 · 1 comment · 0 reactions · 1 assignee · Indexed Sep 17, 2026
Option comment parsing has issues Open

hashgraph/pbj#818 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 17, 2026
Review plugins and dependencies to support broader adoption Open

hashgraph/pbj#820 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 17, 2026
Review all dependencies and consider replacements Open

hashgraph/pbj#821 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 17, 2026
Consider replacing the Hiero Conventions Gradle Plugin Open

hashgraph/pbj#822 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 17, 2026
Wrong example of creating PbjGrpcClient Open

hashgraph/pbj#877 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 17, 2026
PBJ http/2 stream state transition breaks Helidon connection idle management Open

Bug

hashgraph/pbj#888 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 17, 2026
Remeasure VarInt in PbjReader Open

hashgraph/pbj#904 · 0 comments · 0 reactions · 1 assignee · Indexed Sep 17, 2026

hashgraph/pbj

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