CODEWITHSUNDEEP
springspring-elspelevaluationexception
Pankaj Verma
Pankaj Verma

Reputation: 3

After upgrading spring framework 6.0.14 to 6.1.6 getting error in this spell expression

This is the spell expression:

@Cacheable(value = "Cache", 
    key = "(#request).getToken().hashCode()", 
    unless = "#result == null")

ERROR:org.springframework.expression.spel.SpelEvaluationException: EL1011E: Method call: Attempted to call method getAuthenticationRequest() on null context object

How do I resolve this issue?

Upvotes: 0

Views: 473

Answers (1)

Artem Bilan
Artem Bilan

Reputation: 121552

I think the answer is in the Javadocs:

/**
 * Spring Expression Language (SpEL) expression for computing the key dynamically.
 * <p>Default is {@code ""}, meaning all method parameters are considered as a key,
 * unless a custom {@link #keyGenerator} has been configured.
 * <p>The SpEL expression evaluates against a dedicated context that provides the
 * following meta-data:
 * <ul>
 * <li>{@code #root.method}, {@code #root.target}, and {@code #root.caches} for
 * references to the {@link java.lang.reflect.Method method}, target object, and
 * affected cache(s) respectively.</li>
 * <li>Shortcuts for the method name ({@code #root.methodName}) and target class
 * ({@code #root.targetClass}) are also available.
 * <li>Method arguments can be accessed by index. For instance the second argument
 * can be accessed via {@code #root.args[1]}, {@code #p1} or {@code #a1}. Arguments
 * can also be accessed by name if that information is available.</li>
 * </ul>
 */
String key() default "";

I assume your request is a parameter name. Apparently such an information is not available in your case. Try to compile your project with -parameters option.

Upvotes: 1

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