Codename One has rolled out comprehensive client and server updates aimed at supporting diverse application templates like banking and streaming services. The backend architecture gains robust security through certificate management APIs and token refresh mechanisms, alongside centralized error handling and disk-spooled uploads. Furthermore, data transformation is standardized across client and server with expanded JSON mapping features. Developers can also test and document their applications more effectively using the simulator's new virtual keyboard and integrated video recorder.
Key points
Modernized backend capabilities allow developers to import existing identity stores witho…: Modernized backend capabilities allow developers to import existing identity stores without forcing end users to reset passwords.
Upgraded JSON mapping unifies data serialization across both clients and servers using cu…: Upgraded JSON mapping unifies data serialization across both clients and servers using custom codecs and explicit null handling.
New bounded caching mechanisms provide system stability through configured size constrain…: New bounded caching mechanisms provide system stability through configured size constraints, automatic expiration, and performance metrics.
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The templates this month (a bank, a streaming service, a messenger, a delivery service and a game) all have servers, and every server ran into something a modern web app takes for granted. This post collects what we added to the Codename One backend to fill those gaps. Several of them apply to the client too. Then there’s the simulator, which can now show a virtual keyboard and record a video of your app.
If you write Spring Boot during the day, most of this will look familiar on purpose. When there’s no reason to differ, the backend behaves the way Spring does.
A bounded cache
Bastion looks up prices on every quote. Calling the price feed on every quote is slow and burns the feed’s quota. Caching forever shows stale prices. The new cache has a size bound, expiry, a removal listener and metrics:
private static final Cache<String, Price> PRICES = Cache.<String, Price>builder("prices")
South Korean authorities and global semiconductor giants are stepping up legal protections as Beijing ramps up aggressive poaching of top technical talent. To counter severe U.S. equipment export curbs, Chinese manufacturers are offering lucrative packages to foreign engineers to bridge critical expertise gaps. These intensifying illicit transfers threaten the market dominance long held by established memory manufacturers.
Conventional terminal output mechanisms routinely degrade performance by triggering write operations for every single line of text. In high-volume operations, such as extracting archives containing numerous small files, these frequent flushes quickly become the primary operational bottleneck. Adopting an idle-flush strategy solves this problem by grouping lines together while still delivering responsive terminal updates to users.
The platform overhauled its underlying infrastructure to streamline web access across varying network speeds. Engineered to aid visitors on sluggish connections, the rewrite unifies fragmented systems to cut loading friction worldwide. Early feedback indicates noticeable responsiveness gains as the rollout gradually expands across international regions.