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@var

Modifiable local variables with a type inferred by assigning value.

Since

- @var was introduced as experimental feature in lombok v1.16.12. -

Experimental

- Experimental because: -

This feature is very controversial.
There is JEP 286 that should make the @var obsolete.

Current status: uncertain - Currently we feel this feature cannot move out of experimental status. -

Overview

- The @var has the same mission as the @val annotation but modifable. -

With Lombok

@HTML_PRE@

Vanilla Java

@HTML_POST@

Supported configuration keys:

lombok.val.flagUsage = [allow] (default: not set): Lombok will flag any usage of var as an error if not configured.

Small print

- For compound types, the most common superclass is inferred, not any shared interfaces. For example, bool ? new HashSet() : new ArrayList() - is an expression with a compound type: The result is both AbstractCollection as well as Serializable. The type inferred will be - AbstractCollection, as that is a class, whereas Serializable is an interface. -

- In ambiguous cases, java.lang.Object is inferred. -

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