# Using Gradle

> Building

- Skill: `foundationdb/using-gradle` (Agent Skill)
- Install (CLI): `npx skillmds@latest add foundationdb/using-gradle`
- Raw SKILL.md: https://api.skillmd.com/api/skills/foundationdb/using-gradle/raw
- Safety review: pending
- Works with: Claude Code, Claude.ai, OpenAI Codex
- Category: Coding & Dev Tools
- Author: foundationdb (https://skillmd.com/u/foundationdb)
- Updated: 2026-09-17
- Page: https://skillmd.com/skills/foundationdb/using-gradle

---


# Building

```
./gradlew build                        # full build
./gradlew package                      # build + generate protobuf sources (required before first compile)
./gradlew clean                        # clean build artifacts
./gradlew -PspotbugsEnableHtmlReport check   # all checks including SpotBugs and Checkstyle
```

Compile a single module without running tests:
```
./gradlew :fdb-relational-core:compileJava
./gradlew :fdb-record-layer-core:compileJava
```

# Running tests

## Standard test tasks

| Task | What it runs |
|---|---|
| `test` | Unit + integration tests, excluding `WipesFDB` and `AutomatedTest` tags |
| `quickTest` | Like `test` but faster (excludes `WipesFDB`) |
| `destructiveTest` | Tests tagged `WipesFDB` — wipes FDB data, single fork |
| `performanceTest` | Tests tagged `Performance`, assertions disabled |
| `rpcTest` | Tests via embedded RPC server rather than embedded connection |
| `mixedModeTest` | Tests tagged `MixedMode` (requires external server JARs) |
| `singleVersionTest` | Tests against a single external server version |

Run a specific test class or method in a module:
```
./gradlew :fdb-relational-core:test --tests 'com.apple.foundationdb.relational.recordlayer.EmbeddedRelationalStatementTest'
./gradlew :fdb-relational-core:test --tests 'com.apple.foundationdb.relational.recordlayer.EmbeddedRelationalStatementTest.testGet'
```

## yaml-tests

```
./gradlew :yaml-tests:test             # run all yaml integration tests
./gradlew :yaml-tests:test --tests 'YamlIntegrationTests.myTestName'
```

Custom seed and iteration count (for reproducing flaky yaml tests):
```
./gradlew :yaml-tests:test -Ptests.yaml.seed=12345 -Ptests.yaml.iterations=10
```

## FDB prerequisite

Tests that hit FDB require a running FoundationDB cluster and `fdb-environment.yaml` in the
repo root.

Example `fdb-environment.yaml`:
```yaml
libraryPath: /usr/local/lib/libfdb_c.dylib
clusterFiles:
  - /usr/local/etc/foundationdb/fdb.cluster
```

## Publishing locally (to use in another project)

```
./gradlew publishToMavenLocal -PpublishBuild=true
```

Jars land in `~/.m2/repository/org/foundationdb/`.

## JMH benchmarks (fdb-relational-core)

```
./gradlew :fdb-relational-core:jmh
```

Benchmark sources live in `fdb-relational-core/src/jmh/java/`. The active benchmarks are
controlled by the `includes` list in the `jmh {}` block of `fdb-relational-core.gradle`.
Useful JMH options (pass as Gradle properties or edit the block):

```
./gradlew :fdb-relational-core:jmh -Pjmh.include=DirectAccessVsQueryBenchmark
```