oracle/graal · error · IllegalArgumentException

No primitive type for basic type

Error message

No primitive type for basic type 

What it means

Error "No primitive type for basic type " thrown in oracle/graal.

Source

Thrown at espresso-compiler-stub/src/com.oracle.truffle.espresso.vmaccess/src/com/oracle/truffle/espresso/vmaccess/EspressoExternalVMAccess.java:963

                 * that in the guest helper.
                 */
                throw new LinkageError("Could not resolve type " + name);
            }
            return UnresolvedJavaType.create(name);
        }
        return new EspressoExternalResolvedInstanceType(this, meta);
    }

    EspressoExternalResolvedPrimitiveType forPrimitiveKind(JavaKind kind) {
        if (!kind.isPrimitive()) {
            throw new IllegalArgumentException("Not a primitive kind: " + kind);
        }
        return forPrimitiveBasicType(kind.getBasicType());
    }

    private EspressoExternalResolvedPrimitiveType forPrimitiveBasicType(int basicType) {
        if (primitives[basicType] == null) {
            throw new IllegalArgumentException("No primitive type for basic type " + basicType);
        }
        return primitives[basicType];
    }

    Value invokeJVMCIHelper(String method, Object... args) {
        try {
            return jvmciHelper.invokeMember(method, args);
        } catch (PolyglotException e) {
            throw throwHostException(e);
        }
    }

    JavaType toJavaType(Value value) {
        if (value.isNull()) {
            return null;
        }
        if (value.isString()) {
            return UnresolvedJavaType.create(value.asString());

View on GitHub (pinned to a66e9ccd1d)

Solutions

1. Fix the condition reported by the error: No primitive type for basic type
2. Check the throwing call site and ensure its documented preconditions (argument values, types, environment, or configuration) are satisfied before the call.

Example fix

Validate inputs and environment so that the failing condition does not occur: No primitive type for basic type

When it happens

Trigger: Thrown at espresso-compiler-stub/src/com.oracle.truffle.espresso.vmaccess/src/com/oracle/truffle/espresso/vmaccess/EspressoExternalVMAccess.java:963 when the library encounters an invalid state.

Common situations: Occurs when a caller violates the contract guarded by this check: No primitive type for basic type

AI-assisted analysis of oracle/graal@a66e9ccd1d (2026-08-14). Data as JSON: /api/errors/a7b1d55ac4d88bcf. Report an issue: GitHub.