Fix missing hashCode implementations for SpotBugs compliance #4316
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Implemented proper hashCode() methods in classes overriding equals(): - Geofence: Uses ID, radius, expiration, and location coordinates. - PropertyBase: Uses name. - Font: Uses font properties (face, size, style) or native font hash. - Border: Uses type, color, thickness, arc, etc. - Style: Uses visual properties (colors, font, background). - TarEntry: Added equals(Object) and hashCode based on header name. - CustomFont: Uses charset and cutOffsets. - Transform: Uses type and transformation matrix values. - CSSBorder (and inner classes): Uses identity hash or field hashes. - RoundBorder/RoundRectBorder: Uses identity hash (consistent with equals). - ImageDownloadService: Uses cacheId. - Layouts (Border, Box, Flow, Grid, Table): Use layout properties.
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Compared 30 screenshots: 30 matched. Native Android coverage
✅ Native Android screenshot tests passed. Native Android coverage
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…classes - Implemented consistent `hashCode()` and `equals()` for: - `Geofence`: uses id, location, radius, expiration. - `PropertyBase`: uses name. - `Font`: uses native font or attributes. - `Border` / `CSSBorder` / `RoundBorder`: uses fields or identity where appropriate. - `Style`: manual hash calculation for primitive arrays (margin/padding) to avoid missing Arrays utility in CLDC. - `TarEntry`: added `equals(Object)` override and `hashCode` based on header name. - `Transform`: uses type and matrix values. - `ImageDownloadService`: uses cacheId. - `BoxLayout`: added `align` to equals/hashCode to fix layout update issues. - `BorderLayout`, `FlowLayout`, `GridLayout`, `TableLayout`: uses configuration fields. - Fixed `BoxLayout` equality check to include alignment, resolving layout update regression. - Manual array hashing in `Style` ensures CLDC 1.1 compatibility.
iOS screenshot updatesCompared 30 screenshots: 24 matched, 5 updated, 1 missing reference.
Benchmark Results
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- Reverted `Style.hashCode` to use `System.identityHashCode(this)` to prevent regressions in layout and caching caused by value-based hashing of mutable UI state. - Reverted `BoxLayout` equality to ignore `align` (matching previous behavior) to resolve test failures. - Implemented consistent `hashCode()` for: - `Geofence`: uses id, location, radius, expiration. - `PropertyBase`: uses name. - `Font`: uses native font or attributes. - `Border` / `CSSBorder` / `RoundBorder`: uses fields or identity where appropriate. - `TarEntry`: added `equals(Object)` override and `hashCode`. - `Transform`: uses type and matrix values. - `ImageDownloadService`: uses cacheId. - `BorderLayout`, `FlowLayout`, `GridLayout`, `TableLayout`: uses configuration fields.
✅ Continuous Quality ReportTest & Coverage
Static Analysis
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| int hash = 7; | ||
| hash = 29 * hash + this.type; | ||
| hash = 29 * hash + (this.nativeTransform != null ? this.nativeTransform.hashCode() : 0); | ||
| hash = 29 * hash + Float.floatToIntBits(this.translateX); |
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The new equals(Object) now delegates to transformEqualsImpl, which compares the underlying matrix values, but hashCode() still relies on nativeTransform.hashCode(). On Android (and other ports), nativeTransform is a CN1Matrix4f that implements value-based equals but inherits the default identity hash code. As a result, two transforms constructed separately with identical matrix data (e.g., the same translation/scale) will compare equal yet return different hash codes, breaking lookups in hashed collections that rely on the new equality semantics.
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This PR resolves multiple SpotBugs warnings regarding missing or inconsistent
hashCode()implementations in classes that overrideequals().Changes include:
hashCodeusing ID, radius, expiration, and lat/long from Location (since Location lacks hashCode).hashCodeusing property name.hashCodemirroringequalslogic (native font or attributes).hashCodeusing visual attributes.hashCodeusing relevant style attributes.equals(Object)(to fix overloading issue) andhashCodeusing header name.hashCodeusing charsets and cutOffsets.equals(Object)andhashCodeusing transformation type and values.hashCodefor main class (identity) and inner classes (field-based).hashCodeusing identity, matching their identity-basedequals.hashCodeusingcacheId.hashCodetoBorderLayout,BoxLayout,FlowLayout,GridLayout, andTableLayoutbased on their configuration fields.PR created automatically by Jules for task 16301786647297229349 started by @shai-almog