oracle/graal · error · GraalError

Cannot find partial evaluation configuration: %s

Error message

Cannot find partial evaluation configuration: %s

What it means

TruffleCompilerImpl.createPartialEvaluatorConfiguration(name) searches the PartialEvaluatorConfiguration implementations registered via ServiceLoader (GraalServices.load) and matches by name(); no match means the configuration name is unknown to this distribution, and GraalError is thrown.

Source

Thrown at compiler/src/jdk.graal.compiler/src/jdk/graal/compiler/truffle/TruffleCompilerImpl.java:206

    public static final MemUseTrackerKey CodeInstallationMemUse = DebugContext.memUseTracker("TruffleCodeInstallationMemUse");

    /**
     * Creates a new {@link CompilationIdentifier} for {@code compilable}.
     *
     * Implementations of this method must guarantee that the {@link Verbosity#ID} for each returned
     * value is unique.
     */
    public abstract TruffleCompilationIdentifier createCompilationIdentifier(TruffleCompilationTask task, TruffleCompilable compilable);

    protected abstract DebugContext createDebugContext(OptionValues options, CompilationIdentifier compilationId, TruffleCompilable compilable, PrintStream logStream);

    public static PartialEvaluatorConfiguration createPartialEvaluatorConfiguration(String name) {
        for (PartialEvaluatorConfiguration candidate : GraalServices.load(PartialEvaluatorConfiguration.class)) {
            if (candidate.name().equals(name)) {
                return candidate;
            }
        }
        throw new GraalError("Cannot find partial evaluation configuration: %s", name);
    }

    @Override
    @SuppressWarnings("try")
    public final void doCompile(TruffleCompilationTask task, TruffleCompilable compilable, TruffleCompilerListener listener) {
        try (TruffleCompilation compilation = openCompilation(task, compilable)) {
            doCompile(compilation, listener);
        }
    }

    /**
     * General options configured for the compiler. E.g. default values set with
     * -Djdk.graal.OptionKey=value.
     */
    protected abstract OptionValues getGraalOptions();

    /**
     * Parse general options configured for the compiler, e.g. default values set with

View on GitHub (pinned to a66e9ccd1d)

Solutions

1. Enumerate the available configurations (iterate GraalServices.load(PartialEvaluatorConfiguration.class) and print name()) and use one of those exact names.
2. For a custom configuration, add META-INF/services/jdk.graal.compiler.truffle.PartialEvaluatorConfiguration containing your implementation class so ServiceLoader finds it.
3. Check for typos/case mismatch in the name string.

Example fix

// before
TruffleCompilerImpl.createPartialEvaluatorConfiguration("inlinied"); // typo

// after
for (PartialEvaluatorConfiguration c : GraalServices.load(PartialEvaluatorConfiguration.class)) {
    System.out.println(c.name()); // pick the exact registered name
}
TruffleCompilerImpl.createPartialEvaluatorConfiguration("inlined");

// List registered configurations and validate the name before calling
java.util.Set<String> names = GraalServices.load(PartialEvaluatorConfiguration.class).stream()
        .map(PartialEvaluatorConfiguration::name)
        .collect(java.util.stream.Collectors.toSet());
if (!names.contains(requestedName)) {
    throw new IllegalArgumentException("Unknown config '" + requestedName + "'; available: " + names);
}
TruffleCompilerImpl.createPartialEvaluatorConfiguration(requestedName);

When it happens

Trigger: Calling createPartialEvaluatorConfiguration with a name that no registered PartialEvaluatorConfiguration reports: typo, wrong name string, or the provider class missing its META-INF/services registration in the jar.

Common situations: Passing a configuration name from documentation that doesn't match the registered name; custom PartialEvaluatorConfiguration built without a service-provider entry; upgrading a distribution where the configuration set changed.

Related errors

• Invalid option
• Cannot downgrade from minimum required version
• Value for {} cannot be empty
• Invalid directed inlining rules file path: {path}
• {file}:{line}: {cause}

AI-assisted analysis of oracle/graal@a66e9ccd1d (2026-08-14). Data as JSON: /api/errors/a7ff91022ca2f32e. Report an issue: GitHub.