Create the "C++ and Bazel" and "Java and Bazel" pages.

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site/docs/bazel-and-java.md

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+---
+layout: documentation
+title: Java and Bazel
+---
+
+# Java and Bazel
+
+This page contains resources that help you use Bazel with Java projects. It
+links to a tutorial, build rules, and other information specific to building
+Java projects with Bazel.
+
+## Contents
+
+- [Working with Bazel](#working-with-bazel)
+- [Migrating to Bazel](#migrating-to-bazel)
+- [Best practices](#best-practices)
+   - [Directory structure](#directory-structure)
+   - [BUILD files](#build-files)
+- [Java and Skylark](#java-and-skylark)
+
+## Working with Bazel
+
+The following resources will help you work with Bazel on Java projects:
+
+*  [Tutorial: Building a Java Project](tutorial/java.html)
+*  [Java rules](https://docs.bazel.build/versions/master/be/java.html)
+
+## Migrating to Bazel
+
+If you currently build your Java projects with Maven, follow the steps in the
+migration guide to start building your Maven projects with Bazel:
+
+*  [Migrating from Maven to Bazel](migrate-maven.html)
+
+## Best practices
+
+In addition to [general Bazel best practices](best-practices.html), below are
+best practices specific to Java projects.
+
+### Directory structure
+
+Prefer Maven's standard directory layout (sources under `src/main/java`, tests
+under `src/test/java`).
+
+### BUILD files
+
+Follow these guidelines when creating your BUILD files:
+
+*  Use one BUILD file per package containing Java sources.
+
+*  Every BUILD file should contain one `java_library` rule that looks like this:
+
+   ```python
+   java_library(
+       name = "directory-name",
+       srcs = glob(["*.java"]),
+      deps = [...],
+   )
+   ```
+*  The name of the library should be the name of the directory containing the
+   BUILD file.
+
+*  The sources should be a non-recursive [`glob`](https://docs.bazel.build/versions/master/be/functions.html#glob)
+   of all Java files in the directory.
+
+*  Tests should be in a matching directory under `src/test` and depend on this
+   library.
+
+## Java and Skylark
+
+**Note**: Extending Bazel with Skylark is for advanced build and test scenarios.
+You do not need to use Skylark when getting started with Bazel.
+
+The following [Skylark](https://docs.bazel.build/versions/master/skylark/concepts.html)
+modules, configuration fragments, and providers will help you extend Bazel's
+capabilities when building your Java projects:
+
+*  Modules:
+
+   *  [`java_annotation_processing`](skylark/lib/java_annotation_processing.html)
+   *  [`java_common`](skylark/lib/java_common.html)
+   *  [`java_compilation_info`](skylark/lib/java_compilation_info.html)
+   *  [`java_output`](skylark/lib/java_output.html)
+   *  [`java_output_jars`](skylark/lib/java_output_jars.html)
+   *  [`java_proto_common`](skylark/lib/java_proto_common.html)
+   *  [`JavaRuntimeClasspathProvider`](skylark/lib/JavaRuntimeClasspathProvider.html)
+   *  [`JavaRuntimeInfo`](skylark/lib/JavaRuntimeInfo.html)
+   *  [`JavaToolchainSkylarkApiProvider`](skylark/lib/JavaToolchainSkylarkApiProvider.html)
+
+*  Configuration fragments:
+
+   *  [`java`](skylark/lib/java.html)
+
+*  Providers:
+
+   *  [`java`](skylark/lib/JavaSkylarkApiProvider.html)
+   *  [`JavaInfo`](skylark/lib/JavaInfo.html)