apache/maven · error · IllegalArgumentException

Not fully interpolated metadata {metadata}

Error message

Not fully interpolated metadata {metadata}

What it means

Error "Not fully interpolated metadata {metadata}" thrown in apache/maven.

Source

Thrown at impl/maven-impl/src/main/java/org/apache/maven/impl/resolver/validator/MavenValidator.java:64

        if (containsPlaceholder(artifact.getGroupId())
                || containsPlaceholder(artifact.getArtifactId())
                || containsPlaceholder(artifact.getVersion())
                || containsPlaceholder(artifact.getClassifier())
                || containsPlaceholder(artifact.getExtension())) {
            throw new IllegalArgumentException("Not fully interpolated artifact " + artifact);
        }
        if (validatePathComponents) {
            PathUtils.validateArtifactComponents(artifact);
        }
    }

    @Override
    public void validateMetadata(Metadata metadata) throws IllegalArgumentException {
        if (containsPlaceholder(metadata.getGroupId())
                || containsPlaceholder(metadata.getArtifactId())
                || containsPlaceholder(metadata.getVersion())
                || containsPlaceholder(metadata.getType())) {
            throw new IllegalArgumentException("Not fully interpolated metadata " + metadata);
        }
        if (validatePathComponents) {
            PathUtils.validateMetadataComponents(metadata);
        }
    }

    @Override
    public void validateDependency(Dependency dependency) throws IllegalArgumentException {
        Artifact artifact = dependency.getArtifact();
        if (containsPlaceholder(artifact.getGroupId())
                || containsPlaceholder(artifact.getArtifactId())
                || containsPlaceholder(artifact.getVersion())
                || containsPlaceholder(artifact.getClassifier())
                || containsPlaceholder(artifact.getExtension())
                || containsPlaceholder(dependency.getScope())
                || dependency.getExclusions().stream()
                        .anyMatch(e -> containsPlaceholder(e.getGroupId())
                                || containsPlaceholder(e.getArtifactId())

View on GitHub (pinned to e4093d4e12)

When it happens

Trigger: Thrown at impl/maven-impl/src/main/java/org/apache/maven/impl/resolver/validator/MavenValidator.java:64 when the library encounters an invalid state.

Common situations: See trigger scenarios.

AI-assisted analysis of apache/maven@e4093d4e12 (2026-08-21). Data as JSON: /api/errors/f7cb3f33c8d0032d. Report an issue: GitHub.