imports

Summary

The imports macro returns a comma-separated list of packages that will be imported by the current bundle. The list can be optionally filtered by providing filter arguments.

Syntax

${imports}
${imports;<filter>...}

Parameters

• filter (optional) - One or more filter patterns to select specific imported packages

Behavior

• Returns all packages in the bundle’s Import-Package header
• Packages are listed in a comma-separated format
• Optional filter arguments can narrow down the result
• Available during bundle analysis phase
• Includes both explicitly declared and automatically detected imports

Examples

Get all imported packages:

imported.pkgs=${imports}
# Returns: "org.osgi.framework,javax.servlet,org.slf4j,..."

Document imported packages:

Bundle-Description: Depends on ${imports}

Count imported packages:

import.count=${size;${imports}}

Use in conditional logic:

${if;${imports};has-imports;no-imports}

Check for specific imports:

has.servlet=${if;${filter;${imports};javax\.servlet.*};yes;no}

Use Cases

• Documenting bundle dependencies
• Validating import configurations
• Analyzing package dependencies
• Computing bundle coupling metrics
• Conditional logic based on what’s imported
• Dependency verification in builds

Notes

• Only includes packages in the Import-Package manifest header
• Includes both required and optional imports
• Packages listed here will be resolved at runtime by OSGi
• The list reflects analyzed/calculated imports, not just explicit declarations
• bnd automatically calculates imports by scanning bytecode
• See also: ${exports} for exported packages
• See also: ${exporters} to find which JARs provide packages

See test cases in MacroTestsForDocsExamples.java