java build_error ai_generated true

Failed to validate PGP signature for artifact com.example:signed-lib:1.0.0 from repository central: Signature verification failed: No public key available

ID: java/maven-artifact-signature-validation-failure

Also available as: JSON · Markdown · 中文
80%Fix Rate
85%Confidence
0Evidence
2025-03-05First Seen

Version Compatibility

VersionStatusIntroducedDeprecatedNotes
8+ active — — —

Root Cause

Maven is configured to verify signatures of dependencies, but the public key for the artifact's signer is not in the local keyring.

generic

中文

Maven 配置为验证依赖的签名，但本地密钥环中没有工件签名者的公钥。

Workarounds

  1. 90% success Import the correct public key from a keyserver 
    gpg --keyserver hkp://keyserver.ubuntu.com --recv-keys KEY_ID
  2. 80% success Configure Maven to skip signature verification for that specific repository 
    <repository><id>central</id><url>https://repo.maven.apache.org/maven2</url><snapshots><checksumPolicy>ignore</checksumPolicy></snapshots></repository> (set checksumPolicy to 'ignore' for signatures)

Dead Ends

Common approaches that don't work:

  1. Disabling signature verification globally in settings.xml 70% fail

    This reduces security and may not be allowed in corporate environments.

  2. Importing a random public key from a keyserver 90% fail

    The imported key may not match the signer, leading to continued verification failure.