oracle/graal · error · IllegalArgumentException

CrashAtThrowsOOME and CrashAtIsFatal cannot both be enabled

Error message

CrashAtThrowsOOME and CrashAtIsFatal cannot both be enabled

What it means

initializeOptions rejects an option combination: CrashAtThrowsOOME=true together with CrashAtIsFatal != 0 is contradictory (one makes crashing methods throw OutOfMemoryError for testing, the other makes the crash fatal), so IllegalArgumentException is thrown at Graal option initialization before any compilation.

Solutions

1. Choose one crash behavior: keep CrashAtThrowsOOME=true and drop CrashAtIsFatal (leave it 0/unset), or the reverse
2. Audit generated command lines for stale crash-injection flags before enabling Graal

Example fix

# before
-Dgraal.CrashAtThrowsOOME=true -Dgraal.CrashAtIsFatal=1

# after
-Dgraal.CrashAtThrowsOOME=true

boolean crashOptsConsistent(boolean throwsOome, int isFatal) { return !(throwsOome && isFatal != 0); }

When it happens

Trigger: Setting both -Dgraal.CrashAtThrowsOOME=true and -Dgraal.CrashAtIsFatal=<nonzero> (e.g. 1) on the command line or via per-method options; evaluated once when HotSpotGraalOptionValues.initializeOptions builds the OptionValues.

Common situations: Test/fuzzing harnesses accumulating crash-injection flags over time; copying a diagnostics recipe that combined both options; CI defaults left over from an experiment.

Related errors

• No options specified for MethodFilter:
• Option name must follow
• The ' ' property is no longer supported.
• Compiler configuration
• No backend available for host architecture \

AI-assisted analysis of oracle/graal@a66e9ccd1d (2026-08-14). Data as JSON: /api/errors/c4a5d47dd91b25cc. Report an issue: GitHub.

Appendix: source

Thrown at compiler/src/jdk.graal.compiler/src/jdk/graal/compiler/hotspot/HotSpotGraalOptionValues.java:153

            }
            OptionsParser.parseOptions(compilerOptionSettings, compilerOptionValues, descriptors);
            return compilerOptionValues;
        }
    }

    private static String stripPrefix(String name, String prefix) {
        String baseName = name.substring(prefix.length());
        if (baseName.isEmpty()) {
            throw new IllegalArgumentException("Option name must follow '" + prefix + "' prefix");
        }
        return baseName;
    }

    private static OptionValues initializeOptions() {
        EconomicMap<OptionKey<?>, Object> values = parseOptions();
        OptionValues options = new OptionValues(values);
        if (HotSpotGraalCompiler.Options.CrashAtThrowsOOME.getValue(options) && HotSpotGraalCompiler.Options.CrashAtIsFatal.getValue(options) != 0) {
            throw new IllegalArgumentException("CrashAtThrowsOOME and CrashAtIsFatal cannot both be enabled");
        }
        return options;
    }

    static void printProperties(OptionValues compilerOptions, PrintStream out) {
        boolean all = HotSpotGraalCompilerFactory.Options.PrintPropertiesAll.getValue(compilerOptions);
        compilerOptions.printHelp(OptionsParser.getOptionsLoader(), out, GRAAL_OPTION_PROPERTY_PREFIX, all);
        LibGraalSupport libgraal = LibGraalSupport.INSTANCE;
        if (all && libgraal != null) {
            libgraal.printOptions(out, LIBGRAAL_VM_OPTION_PROPERTY_PREFIX);
        }
    }
}

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