Add Bundle Graph visualization view to bndtools Eclipse plugin

[Copilot]

Adds a new Bundle Graph Eclipse ViewPart that renders a Mermaid dependency graph of OSGi bundles in a bndtools workspace, with an interactive dual-list selection UI and multiple universe loading strategies.

Model layer (bndtools.views.bundlegraph.model)

• BundleNode(bsn, version, projectName) — canonical identity on bsn+version only (projectName is display metadata; equals/hashCode deliberately exclude it so repo-loaded and project-loaded nodes of the same bundle match)
• BundleEdge(from, to, boolean optional) — edge with optionality flag; optional=true iff all Import-Package entries that create that edge carry resolution:=optional
• BundleGraphModel interface: nodes(), edges(), dependenciesOf(), dependantsOf(), origin()
• SimpleBundleGraphModel — in-memory implementation; 2-arg constructors delegate to 3-arg (nodes, edges, origin) for backward compat
• GraphClosures — BFS transitive closure for dependency/dependant expansion

Dependency calculator (ManifestDependencyCalculator)

Reads Import-Package / Export-Package from JAR manifests via aQute.bnd.osgi.Jar.getManifest() + aQute.bnd.osgi.Domain:

• Builds Map<BundleNode, File> → Set<BundleEdge> with per-edge optionality tracking
• Always computes all edges (including optional ones); filtering is deferred to render time

Universe providers

Provider	Input	Origin label
ProjectUniverseProvider	List<IProject>	Projects: p1, p2
BndrunUniverseProvider	.bndrun IFile	Bndrun: file.bndrun
RepositoryUniverseProvider	List<RepositoryPlugin>	Repositories: r1, r2

"Add from Repositories" is additive — merges into the existing universe without replacing it.

Renderer (MermaidRenderer)

graph LR
  classDef primary fill:#dae8fc,stroke:#1a6496,stroke-width:2px
  classDef secondary fill:#f5f5f5,stroke:#888888,stroke-width:1px,stroke-dasharray:4 4
  bundleA["my.bundle 1.0"]:::primary
  bundleB["dep.bundle 2.0"]:::secondary
  bundleB --> bundleA          %% mandatory edge
  bundleB -.-> bundleA         %% optional edge

EdgeFilter enum (ALL / ONLY_MANDATORY / ONLY_OPTIONAL) filters edges at render time; when a non-ALL filter is active, nodes with no visible edges are hidden, and secondary↔secondary edges not touching any primary node are suppressed.

View (BundleGraphView)

• SashForm vertical split: selection panel (top, collapsible via toolbar toggle) + browser (bottom)
• Left list: "Available bundles" with text filter; Remove button + Delete key removes selected nodes from universe
• Right list: "Selected input bundles"; double-click removes; Ctrl/Cmd+C copies BSNs to clipboard
• Center buttons: Add / Remove / Add deps / Add dependants
• Options row: expansion mode combo, edge filter combo, auto-render checkbox
• Zoom toolbar: − / + buttons + percentage combo; browser wraps Mermaid SVG in a scrollable transform: scale() container
• Copy Mermaid to clipboard toolbar action
• Refresh Universe re-invokes the stored Supplier<BundleGraphModel> and retains still-valid selected nodes
• allowMultiple="true" in plugin.xml so multiple graph sessions can be open simultaneously; each invocation gets a unique secondary ID
• Bundled mermaid.min.js v11.12.3 (MIT) loaded via FileLocator — no CDN required; falls back to CDN with a warning if the bundle entry is missing

Drag and drop

Both "Available bundles" and "Selected input bundles" lists accept drops from:

• .bndrun files → extracts -runbundles, resolves JAR, computes edges
• IProject resources → ProjectUniverseProvider
• RepositoryBundle / RepositoryBundleVersion / RepositoryPlugin from the bndtools Repositories view → resolves latest version, downloads JAR, computes edges

Plugin contributions (plugin.xml)

• View: bndtools.views.BundleGraphView, category bndtools
• Command bndtools.commands.showBundleGraph + handler ShowBundleGraphHandler
• Context menus on .bndrun files and IProject resources

Tests

• GraphClosuresTest — BFS closure correctness including cross-provider BundleNode identity
• MermaidRendererTest — all edge filter modes, primary/secondary styling, optional edge rendering, node hiding
• ManifestDependencyCalculatorTest — edge derivation from manifests, optionality tracking

Warning

Firewall rules blocked me from connecting to one or more addresses (expand for details)

I tried to connect to the following addresses, but was blocked by firewall rules:

• bndtools.jfrog.io
  • Triggering command: /usr/lib/jvm/temurin-17-jdk-amd64/bin/java /usr/lib/jvm/temurin-17-jdk-amd64/bin/java --add-opens=java.base/java.lang=ALL-UNNAMED --add-opens=java.base/java.lang.invoke=ALL-UNNAMED --add-opens=java.base/java.util=ALL-UNNAMED --add-opens=java.prefs/java.util.prefs=ALL-UNNAMED --add-exports=jdk.compiler/com.sun.tools.javac.api=ALL-UNNAMED --add-exports=jdk.compiler/com.sun.tools.javac.util=ALL-UNNAMED --add-opens=java.base/java.util=ALL-UNNAMED --add-opens=java.prefs/java.util.prefs=ALL-UNNAMED --add-opens=java.base/java.nio.charset=ALL-UNNAMED --add-opens=java.base/java.net=ALL-UNNAMED --add-opens=java.base/java.util.concurrent=ALL-UNNAMED --add-opens=java.base/java.util.concurrent.atomic=ALL-UNNAMED --add-opens=java.xml/javax.xml.namespace=ALL-UNNAMED --add-opens=java.base/java.time=ALL-UNNAMED -Xms1024m -Xmx2048m -Dfile.encoding=UTF-8 -Duser.country -Duser.language=en (dns block)
• scans-in.gradle.com
  • Triggering command: /usr/lib/jvm/temurin-17-jdk-amd64/bin/java /usr/lib/jvm/temurin-17-jdk-amd64/bin/java --add-opens=java.base/java.lang=ALL-UNNAMED --add-opens=java.base/java.lang.invoke=ALL-UNNAMED --add-opens=java.base/java.util=ALL-UNNAMED --add-opens=java.prefs/java.util.prefs=ALL-UNNAMED --add-exports=jdk.compiler/com.sun.tools.javac.api=ALL-UNNAMED --add-exports=jdk.compiler/com.sun.tools.javac.util=ALL-UNNAMED --add-opens=java.base/java.util=ALL-UNNAMED --add-opens=java.prefs/java.util.prefs=ALL-UNNAMED --add-opens=java.base/java.nio.charset=ALL-UNNAMED --add-opens=java.base/java.net=ALL-UNNAMED --add-opens=java.base/java.util.concurrent=ALL-UNNAMED --add-opens=java.base/java.util.concurrent.atomic=ALL-UNNAMED --add-opens=java.xml/javax.xml.namespace=ALL-UNNAMED --add-opens=java.base/java.time=ALL-UNNAMED -Xms1024m -Xmx2048m -Dfile.encoding=UTF-8 -Duser.country -Duser.language=en (dns block)

If you need me to access, download, or install something from one of these locations, you can either:

• Configure Actions setup steps to set up my environment, which run before the firewall is enabled
• Add the appropriate URLs or hosts to the custom allowlist in this repository's Copilot coding agent settings (admins only)

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[chrisrueger]

@kriegfrj thanks for the suggestion. Bundle edges which came to existence solely on resolution:optional Imports are now connected with a dotted line , meaning "optional dependency".

If there is at least one non-optional import, then it is considered mandatory.

Now there is a dropdown where you can choose between 3 options: