apache/maven · error · MavenException

Unable to locate instance of type {type}

Error message

Unable to locate instance of type {type}

What it means

Error "Unable to locate instance of type {type}" thrown in apache/maven.

Source

Thrown at impl/maven-impl/src/main/java/org/apache/maven/impl/standalone/ApiRunner.java:263

            return List.of();
        }

        @Override
        public Map<String, Object> getPluginContext(Project project) {
            throw new UnsupportedInStandaloneModeException();
        }
    }

    @Provides
    @SuppressWarnings("unused")
    static Lookup newLookup(Injector injector) {
        return new Lookup() {
            @Override
            public <T> T lookup(Class<T> type) {
                try {
                    return injector.getInstance(type);
                } catch (DIException e) {
                    throw new MavenException("Unable to locate instance of type " + type, e);
                }
            }

            @Override
            public <T> T lookup(Class<T> type, String name) {
                try {
                    return injector.getInstance(Key.of(type, name));
                } catch (DIException e) {
                    throw new MavenException("Unable to locate instance of type " + type, e);
                }
            }

            @Override
            public <T> Optional<T> lookupOptional(Class<T> type) {
                try {
                    return Optional.of(injector.getInstance(type));
                } catch (DIException e) {
                    return Optional.empty();

View on GitHub (pinned to e4093d4e12)

When it happens

Trigger: Thrown at impl/maven-impl/src/main/java/org/apache/maven/impl/standalone/ApiRunner.java:263 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/da2a606689cef3e8. Report an issue: GitHub.