Project: netty

Language java
OSS-Fuzz project link
Build status: Fuzzers succeeding: Build log
Build status: Code coverage succeeding: Build log
Build status: Fuzz Introspector failing: Build log
Fuzzer count 3
Lines of code 84604
Lines covered 2107
Code coverage 2.49%
Code coverage report Report link
Static reachability 54.33%
Fuzz Introspector report Report link (from 2024-05-21)

Historical progression

Functions of interest to fuzz

This section outlines functions that may be of interest to fuzz. They are based on ranking functions that have a lot of complexity but currently exhibit low code coverage. The complexity is calculated based on the function itself as well as the functions called by the given function, i.e. the tree of code that the function triggers.


This is only a minor amount of introspection information available for this project. Please consult the Fuzz Introspector report for more information, e.g. the introspection table of all functions in the target project available here.

Function name Function source file Accumulated cyclomatic complexity Code coverage
[io.netty.channel.CombinedChannelDuplexHandler].channelRead(io.netty.channel.ChannelHandlerContext,java.lang.Object) io.netty.channel.CombinedChannelDuplexHandler 11682 0.0%
[io.netty.handler.codec.http2.Http2ServerUpgradeCodec].prepareUpgradeResponse(io.netty.channel.ChannelHandlerContext,io.netty.handler.codec.http.FullHttpRequest,io.netty.handler.codec.http.HttpHeaders) io.netty.handler.codec.http2.Http2ServerUpgradeCodec 11508 0.0%
[io.netty.handler.codec.http2.DecoratingHttp2ConnectionDecoder].decodeFrame(io.netty.channel.ChannelHandlerContext,io.netty.buffer.ByteBuf,java.util.List) io.netty.handler.codec.http2.DecoratingHttp2ConnectionDecoder 11481 0.0%
[io.netty.handler.codec.http2.DefaultHttp2ConnectionDecoder].decodeFrame(io.netty.channel.ChannelHandlerContext,io.netty.buffer.ByteBuf,java.util.List) io.netty.handler.codec.http2.DefaultHttp2ConnectionDecoder 11479 0.0%
[io.netty.handler.codec.http2.Http2InboundFrameLogger].readFrame(io.netty.channel.ChannelHandlerContext,io.netty.buffer.ByteBuf,io.netty.handler.codec.http2.Http2FrameListener) io.netty.handler.codec.http2.Http2InboundFrameLogger 11479 0.0%
[io.netty.handler.codec.http2.DefaultHttp2FrameReader].readFrame(io.netty.channel.ChannelHandlerContext,io.netty.buffer.ByteBuf,io.netty.handler.codec.http2.Http2FrameListener) io.netty.handler.codec.http2.DefaultHttp2FrameReader 11477 0.0%
[io.netty.channel.CombinedChannelDuplexHandler].write(io.netty.channel.ChannelHandlerContext,java.lang.Object,io.netty.channel.ChannelPromise) io.netty.channel.CombinedChannelDuplexHandler 11425 0.0%
[io.netty.channel.CombinedChannelDuplexHandler].channelActive(io.netty.channel.ChannelHandlerContext) io.netty.channel.CombinedChannelDuplexHandler 11268 0.0%
[io.netty.channel.CombinedChannelDuplexHandler].userEventTriggered(io.netty.channel.ChannelHandlerContext,java.lang.Object) io.netty.channel.CombinedChannelDuplexHandler 11207 0.0%
[io.netty.handler.codec.http2.Http2ConnectionHandler].channelActive(io.netty.channel.ChannelHandlerContext) io.netty.handler.codec.http2.Http2ConnectionHandler 11186 0.0%