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Third-Party Notices

Compliance assessment

The project is using the third-party components in a way that is generally consistent with their published permissive/open-source license terms:

  1. MAT is redistributed as unmodified vendor JARs. Their manifests identify EPL-2.0; the HPROF bundle also contains the separately identified MIT DEFLATE code. The corresponding license texts are retained in licenses/.
  2. The MAT Calcite implementation is copied into this repository as source. It is attributed to the upstream project and identified as Apache-2.0 below.
  3. Calcite and the other Maven libraries are declared as dependencies rather than copied into this repository or shaded into the application JAR. Maven resolves them at build/run time, and scripts/run-server.sh places those JARs on the runtime classpath. Their original artifact metadata and license files therefore remain with the resolved artifacts.
  4. This file records the direct dependencies and the license families of their resolved transitive dependencies. If a release starts bundling those Maven JARs into a distribution archive, the release process must include the license/NOTICE files from each resolved artifact as well; this repository does not currently create such a bundle.

This is a practical project-level inventory, not legal advice. License terms can change between dependency versions, so the exact resolved dependency tree and each artifact's META-INF/LICENSE*/META-INF/NOTICE* files should be checked as part of a release review.

Maven dependencies

The following are the notable direct dependencies declared in pom.xml. Links point to the upstream project or its license information.

Component Version License / attribution Why it is present
Jackson Databind, Core, Annotations, JSR310 2.18.3 Apache-2.0 MCP and JSON serialization
Eclipse Platform Runtime, Resources, Commands 3.31.0 / 3.22.0 / 3.12.0 EPL-2.0 MAT runtime services
ICU4J 76.1 ICU License Eclipse/MAT internationalization support
Apache Calcite Core 1.41.0 Apache-2.0 SQL parser, planner, and execution engine
Guava 33.5.0-jre Apache-2.0 Embedded MAT Calcite implementation
Janino and Commons Compiler 3.1.12 BSD-3-Clause Calcite enumerable code generation
JUnit Jupiter 5.12.2 EPL-2.0 Tests only
AssertJ Core 3.27.3 Apache-2.0 Tests only

Calcite brings additional runtime artifacts, including Avatica, JTS, Proj4J, Jackson YAML, SnakeYAML, SLF4J, Apache Commons components, protobuf, json-path/json-smart, ASM, and related support libraries. These are transitive dependencies resolved from Maven Central; their license metadata must be retained if the artifacts are redistributed. The versions actually resolved can be inspected with:

mvn dependency:tree -Dscope=runtime

The project does not claim that one license applies to all Calcite transitives: each artifact remains under its own upstream license.

Useful upstream license references:

Redistributed source and artifacts

The Maven build downloads Eclipse Memory Analyzer (MAT) plugin JARs into target/mat/.

It also incorporates the headless MAT schema and function implementation from vlsi/mat-calcite-plugin, used under the Apache License 2.0. The embedded sources are under src/main/java/com/github/vlsi/mat/calcite/; the upstream project and license are available at the linked repository.

Included Artifacts

  1. org.eclipse.mat.api.jar (Bundle-Version 1.16.1.202501091339)
    • Declared license: EPL-2.0
  2. org.eclipse.mat.parser.jar (Bundle-Version 1.16.1.202501091339)
    • Declared license: EPL-2.0
  3. org.eclipse.mat.report.jar (Bundle-Version 1.16.1.202501091339)
    • Declared license: EPL-2.0
  4. org.eclipse.mat.hprof.jar (Bundle-Version 1.16.1.202501091339)
    • Declared licenses: EPL-2.0, MIT (for bundled DEFLATE library code)

License declarations above are sourced from each JAR's META-INF/MANIFEST.MF (Bundle-License) and about.html.

License Texts and Links

  1. Eclipse Public License 2.0 (EPL-2.0)
  2. MIT License notice for DEFLATE library code included in org.eclipse.mat.hprof.jar
    • Local copy: licenses/MIT-DEFLATE.txt
    • Upstream notice location in bundled artifact: about_files/DEFLATE-mit.html

Upstream Project