HtmlUnit · Copilot · Nov 19, 2025 · Nov 19, 2025 · Nov 19, 2025 · Nov 19, 2025
diff --git a/.editorconfig b/.editorconfig
@@ -0,0 +1,37 @@
+# EditorConfig is awesome: https://EditorConfig.org
+
+# top-most EditorConfig file
+root = true
+
+# Unix-style newlines with a newline ending every file
+[*]
+end_of_line = lf
+insert_final_newline = true
+charset = utf-8
+trim_trailing_whitespace = true
+
+# Java files
+[*.java]
+indent_style = space
+indent_size = 4
+max_line_length = 120
+
+# XML files (pom.xml, etc.)
+[*.xml]
+indent_style = space
+indent_size = 4
+
+# YAML files
+[*.{yml,yaml}]
+indent_style = space
+indent_size = 2
+
+# Markdown files
+[*.md]
+trim_trailing_whitespace = false
+max_line_length = off
+
+# Properties files
+[*.properties]
+indent_style = space
+indent_size = 4
diff --git a/.gitattributes b/.gitattributes
@@ -1,12 +1,37 @@
 *        text=auto
 
+# Source files
 *.java   text diff=java
+*.xml    text
+*.properties text
+
+# Web files
 *.html   text diff=html
 *.css    text
 *.js     text
-*.xml    text
-.travis.yml text
 
+# Documentation
+*.md     text diff=markdown
+*.txt    text
+
+# Configuration files
+*.yml    text
+*.yaml   text
+.editorconfig text
+.gitignore text
+.gitattributes text
+
+# Scripts
+*.sh     text eol=lf
+*.bat    text eol=crlf
+
+# Archives
+*.jar    binary
+*.zip    binary
+*.tar    binary
+*.gz     binary
+
+# Test files - specific binary files
 src/test/resources/org/htmlunit/cyberneko/testfiles/test010.html binary
 src/test/resources/org/htmlunit/cyberneko/testfiles/test011.html binary
 

diff --git a/.github/ISSUE_TEMPLATE/bug_report.md b/.github/ISSUE_TEMPLATE/bug_report.md
@@ -0,0 +1,51 @@
+---
+name: Bug Report
+about: Create a report to help us improve
+title: '[BUG] '
+labels: bug
+assignees: ''
+
+---
+
+**Describe the bug**
+A clear and concise description of what the bug is.
+
+**To Reproduce**
+Steps to reproduce the behavior:
+1. Parse HTML with '...'
+2. Use parser configuration '....'
+3. Call method '....'
+4. See error
+
+**Expected behavior**
+A clear and concise description of what you expected to happen.
+
+**Code Example**
+```java
+// Minimal code example to reproduce the issue
+DOMParser parser = new DOMParser();
+// ...
+```
+
+**HTML Sample**
+```html
+<!-- The HTML that causes the issue -->
+<!DOCTYPE html>
+<html>
+...
+</html>
+```
+
+**Environment (please complete the following information):**
+ - OS: [e.g. Windows 10, Ubuntu 20.04]
+ - Java Version: [e.g. 8, 11, 17]
+ - HtmlUnit NekoHTML Version: [e.g. 4.18.0]
+
+**Stack Trace**
+If applicable, add the full stack trace:
+```
+Exception in thread "main" ...
+```
+
+**Additional context**
+Add any other context about the problem here.
diff --git a/.github/ISSUE_TEMPLATE/feature_request.md b/.github/ISSUE_TEMPLATE/feature_request.md
@@ -0,0 +1,33 @@
+---
+name: Feature Request
+about: Suggest an idea for this project
+title: '[FEATURE] '
+labels: enhancement
+assignees: ''
+
+---
+
+**Is your feature request related to a problem? Please describe.**
+A clear and concise description of what the problem is. Ex. I'm always frustrated when [...]
+
+**Describe the solution you'd like**
+A clear and concise description of what you want to happen.
+
+**Describe alternatives you've considered**
+A clear and concise description of any alternative solutions or features you've considered.
+
+**Use Case**
+Describe how this feature would be used in practice:
+```java
+// Example code showing how the feature would be used
+parser.setFeature(NEW_FEATURE, true);
+// ...
+```
+
+**Additional context**
+Add any other context, screenshots, or examples about the feature request here.
+
+**Would you be willing to implement this feature?**
+- [ ] Yes, I can submit a pull request
+- [ ] No, but I can help with testing
+- [ ] No, just suggesting the idea
diff --git a/.github/PULL_REQUEST_TEMPLATE.md b/.github/PULL_REQUEST_TEMPLATE.md
@@ -0,0 +1,57 @@
+## Description
+<!-- Provide a brief description of the changes in this PR -->
+
+## Type of Change
+<!-- Mark the relevant option with an "x" -->
+- [ ] Bug fix (non-breaking change which fixes an issue)
+- [ ] New feature (non-breaking change which adds functionality)
+- [ ] Breaking change (fix or feature that would cause existing functionality to not work as expected)
+- [ ] Documentation update
+- [ ] Code quality improvement
+- [ ] Performance improvement
+
+## Related Issue
+<!-- Link to the issue this PR addresses -->
+Fixes #(issue number)
+
+## Changes Made
+<!-- Describe the changes made in this PR -->
+- 
+- 
+- 
+
+## Testing
+<!-- Describe the tests you ran to verify your changes -->
+- [ ] All existing tests pass (`mvn test`)
+- [ ] Added new tests for the changes
+- [ ] Tested with various Java versions (8, 11, 17, 21)
+- [ ] Manual testing performed
+
+### Test Cases Added
+<!-- List any new test cases -->
+- 
+- 
+
+## Quality Checks
+<!-- Mark completed checks with an "x" -->
+- [ ] Code follows the project's code style (`mvn checkstyle:check`)
+- [ ] No new SpotBugs warnings (`mvn spotbugs:check`)
+- [ ] No new PMD violations (`mvn pmd:check`)
+- [ ] JavaDoc added/updated for public APIs
+- [ ] README.md updated (if applicable)
+
+## Screenshots (if applicable)
+<!-- Add screenshots to help explain your changes -->
+
+## Additional Notes
+<!-- Add any additional notes for reviewers -->
+
+## Checklist
+- [ ] My code follows the style guidelines of this project
+- [ ] I have performed a self-review of my own code
+- [ ] I have commented my code, particularly in hard-to-understand areas
+- [ ] I have made corresponding changes to the documentation
+- [ ] My changes generate no new warnings
+- [ ] I have added tests that prove my fix is effective or that my feature works
+- [ ] New and existing unit tests pass locally with my changes
+- [ ] Any dependent changes have been merged and published
diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
@@ -0,0 +1,108 @@
+name: CI Build
+
+on:
+  push:
+    branches: [ master ]
+  pull_request:
+    branches: [ master ]
+
+jobs:
+  build:
+    name: Build and Test
+    runs-on: ubuntu-latest
+    permissions:
+      contents: read
+
+    strategy:
+      matrix:
+        java: ['8', '11', '17', '21']
+
+    steps:
+    - name: Checkout code
+      uses: actions/checkout@v4
+
+    - name: Set up JDK ${{ matrix.java }}
+      uses: actions/setup-java@v4
+      with:
+        java-version: ${{ matrix.java }}
+        distribution: 'temurin'
+        cache: 'maven'
+
+    - name: Build with Maven
+      run: mvn -B clean compile --file pom.xml
+
+    - name: Run tests
+      run: mvn -B test --file pom.xml
+
+    - name: Generate test report
+      if: always()
+      run: mvn surefire-report:report-only
+
+    - name: Upload test results
+      if: always()
+      uses: actions/upload-artifact@v4
+      with:
+        name: test-results-java-${{ matrix.java }}
+        path: target/surefire-reports/
+        retention-days: 7
+
+    - name: Upload coverage report
+      if: matrix.java == '8'
+      uses: actions/upload-artifact@v4
+      with:
+        name: coverage-report
+        path: target/site/jacoco/
+        retention-days: 30
+
+  quality:
+    name: Code Quality Checks
+    runs-on: ubuntu-latest
+    permissions:
+      contents: read
+
+    steps:
+    - name: Checkout code
+      uses: actions/checkout@v4
+
+    - name: Set up JDK 8
+      uses: actions/setup-java@v4
+      with:
+        java-version: '8'
+        distribution: 'temurin'
+        cache: 'maven'
+
+    - name: Compile code
+      run: mvn -B clean compile --file pom.xml
+
+    - name: Run Checkstyle
+      run: mvn checkstyle:checkstyle --file pom.xml
+      continue-on-error: true
+
+    - name: Upload Checkstyle report
+      uses: actions/upload-artifact@v4
+      with:
+        name: checkstyle-report
+        path: target/checkstyle-result.xml
+        retention-days: 7
+
+    - name: Run SpotBugs
+      run: mvn spotbugs:spotbugs --file pom.xml
+      continue-on-error: true
+
+    - name: Upload SpotBugs report
+      uses: actions/upload-artifact@v4
+      with:
+        name: spotbugs-report
+        path: target/spotbugsXml.xml
+        retention-days: 7
+
+    - name: Run PMD
+      run: mvn pmd:pmd --file pom.xml
+      continue-on-error: true
+
+    - name: Upload PMD report
+      uses: actions/upload-artifact@v4
+      with:
+        name: pmd-report
+        path: target/pmd.xml
+        retention-days: 7
diff --git a/.github/workflows/codeql-analysis.yml b/.github/workflows/codeql-analysis.yml
@@ -30,20 +30,18 @@ jobs:
 
     steps:
     - name: Checkout repository
-      uses: actions/checkout@v2
-      with:
-        # We must fetch at least the immediate parents so that if this is
-        # a pull request then we can checkout the head.
-        fetch-depth: 2
+      uses: actions/checkout@v4
 
-    # If this run was triggered by a pull request event, then checkout
-    # the head of the pull request instead of the merge commit.
-    - run: git checkout HEAD^2
-      if: ${{ github.event_name == 'pull_request' }}
+    - name: Set up JDK 8
+      uses: actions/setup-java@v4
+      with:
+        java-version: '8'
+        distribution: 'temurin'
+        cache: 'maven'
 
     # Initializes the CodeQL tools for scanning.
     - name: Initialize CodeQL
-      uses: github/codeql-action/init@v2
+      uses: github/codeql-action/init@v3
       with:
         languages: ${{ matrix.language }}
         # If you wish to specify custom queries, you can do so here or in a config file.
@@ -54,7 +52,7 @@ jobs:
     # Autobuild attempts to build any compiled languages  (C/C++, C#, or Java).
     # If this step fails, then you should remove it and run the build manually (see below)
     - name: Autobuild
-      uses: github/codeql-action/autobuild@v2
+      uses: github/codeql-action/autobuild@v3
 
     # ℹ️ Command-line programs to run using the OS shell.
     # 📚 https://git.io/JvXDl
@@ -68,4 +66,4 @@ jobs:
     #   make release
 
     - name: Perform CodeQL Analysis
-      uses: github/codeql-action/analyze@v2
+      uses: github/codeql-action/analyze@v3