oracle/graal · error · IllegalArgumentException

The exception object must be a non-null object

Error message

The exception object must be a non-null object

What it means

Error "The exception object must be a non-null object" thrown in oracle/graal.

Source

Thrown at compiler/src/jdk.graal.compiler.vmaccess/src/jdk/graal/compiler/vmaccess/InvocationException.java:46

/**
 * Exception thrown when a method invoked through {@link VMAccess#invoke} throws an exception.
 * <p>
 * The thrown exception can be retrieved with {@link #getExceptionObject()} if it is a "guest"
 * exception.
 */
@SuppressWarnings("serial")
public class InvocationException extends RuntimeException {
    private final JavaConstant exceptionObject;

    /**
     * Constructs an {@link InvocationException} for the given exception object.
     *
     * @param exceptionObject a {@link JavaConstant} representing a non-null exception object.
     */
    public InvocationException(JavaConstant exceptionObject) {
        if (exceptionObject.isNull() || !exceptionObject.getJavaKind().isObject()) {
            throw new IllegalArgumentException("The exception object must be a non-null object");
        }
        this.exceptionObject = exceptionObject;
    }

    /**
     * Constructs an {@link InvocationException} for the given exception object and cause.
     *
     * @param exceptionObject a {@link JavaConstant} representing a non-null exception object.
     * @param cause an exception that was involved in the exception handling of
     *            {@code exceptionObject}.
     */
    public InvocationException(JavaConstant exceptionObject, Throwable cause) {
        super(cause);
        if (exceptionObject.isNull() || !exceptionObject.getJavaKind().isObject()) {
            throw new IllegalArgumentException("The exception object must be a non-null object");
        }
        this.exceptionObject = exceptionObject;
    }

View on GitHub (pinned to a66e9ccd1d)

Solutions

1. Fix the condition reported by the error: The exception object must be a non-null object
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: The exception object must be a non-null object

When it happens

Trigger: Thrown at compiler/src/jdk.graal.compiler.vmaccess/src/jdk/graal/compiler/vmaccess/InvocationException.java:46 when the library encounters an invalid state.

Common situations: Occurs when a caller violates the contract guarded by this check: The exception object must be a non-null object

AI-assisted analysis of oracle/graal@a66e9ccd1d (2026-08-14). Data as JSON: /api/errors/ca4711a136553bce. Report an issue: GitHub.