Summary The issue at hand is a Rust gRPC server experiencing memory growth of approximately 1GB per request, leading to an eventual Out of Memory (OOM) error. This behavior is unexpected in Rust, given its focus on memory safety and lack of garbage collection. The goal is to diagnose and debug this memory growth issue. … Read more
Summary To achieve stable and platform-independent screenshots with Playwright MS Edge, it’s crucial to understand the factors affecting font rendering. Font rendering variations can lead to differences in screenshots between runs on the same machine and between different machines. Root Cause The root cause of the issue is attributed to: Font rendering differences due to … Read more
Summary The issue at hand is a Playwright test timing out after 30 seconds when attempting to create 40 users in a system using a sequential forEach loop. This approach is not scalable and leads to reliability issues. A better approach is needed to handle bulk user creation in Playwright. Root Cause The root cause … Read more
Summary Recursive Common见到了 Table Expressions (CTEs) in SQL Server prohibit aggregate functions (MAX, SUM), TOP, or GROUP BY in the recursive term (the part referencing the CTE). However, a workaround using UNION ALL with an empty set (e.g., WHERE 1=0) unexpectedly bypasses this restriction. This post explores why the restriction exists, why the work parfoisaround … Read more
Summary A Java class using Lombok’s @Data annotation was converted to Kotlin, causing compilation errors because Kotlin code couldn’t access Lombok-generated getters/setters. Adding kapt for Lombok alone was insufficient due to build-process conflicts between Java/Kotlin annotation processing. Root Cause The error occurs due to toolchain misconfiguration: Lombok generates Java bytecode (getters/setters) during Java compilation. Kotlin … Read more
Summary The issue of being unable to download any Visual Studio extensions on different networks is a frustrating problem that can hinder development productivity. Key symptoms include the VS Installer showing loading icons eternally and the inability to update Visual Studio even after unchecking extensions. The Install button remains unavailable, and attempting to download the … Read more
Summary The issue at hand involves an iOS app that integrates GoogleSignIn and IronSourceSDK for login and in-app advertisements, respectively. When submitted for review with both integrations, the review process becomes stuck at “Waiting for Review”. However, when each integration is submitted individually, the review process completes without issues. Root Cause The root cause of … Read more
Stream Internals Deep Dive: Unraveling stream().map and ReferencePipeline.java Summary A developer encountered opacity in Java’s Stream API internals, specifically regarding the execution path of stream().map(). Despite consulting multiple resources (AI, books, courses), they found superficial explanations lacking insight into core classes like ReferencePipeline, Sink, and Spliterator. This highlights crucial gaps in mainstream Java education regarding … Read more
Summary The problem revolves around validating arrays with varying validation rules for each element using Yup in a React project with React Final Form and Final Form Arrays. The challenge is to make some elements in the array required while keeping others optional, which seems impossible with Yup’s built-in array validation. Root Cause The root … Read more
Summary Generating ZATCA-compliant e-invoices in Flutter/Dart is a complex task that involves XML generation, QR code creation, and digital signing. To achieve this, developers can utilize a combination of packages and libraries. The dart_xml package can be used for XML invoice generation, while the qr_code package can handle QR code creation. For digital signing, the … Read more