Move java sources and tests into a single tree (SeleniumHQ#9710)

This emphasizes that all the java code is inter-related. We make use
of bazel to avoid introducing Java 8 incompatible changes, and bazel's
visibility rules to ensure that generated jars only contain what they
should.

.github/workflows/java.yml

@@ -127,7 +127,7 @@ jobs:
       - name: Run browser tests in Chrome
         uses: ./.github/actions/bazel-test
         with:
-          query: attr(tags, chrome, tests(//java/client/...)) except attr(tags, remote, tests(//java/client/...))
+          query: attr(tags, chrome, tests(//java/...)) except attr(tags, remote, tests(//java/...))
         env:
           DISPLAY: :99
 
@@ -160,7 +160,7 @@ jobs:
       - name: Run browser tests in Firefox
         uses: ./.github/actions/bazel-test
         with:
-          query: attr(tags, firefox, tests(//java/client/...)) except attr(tags, remote, tests(//java/client/...))
+          query: attr(tags, firefox, tests(//java/...)) except attr(tags, remote, tests(//java/...))
         env:
           DISPLAY: :99
 
@@ -196,7 +196,7 @@ jobs:
       - name: Run server tests
         uses: ./.github/actions/bazel-test
         with:
-          query: tests(//java/server/...) except attr(tags, 'lint|ie|edge|edgehtml|safari', tests(//java/server/...))
+          query: tests(//java/...) except attr(tags, 'lint|ie|edge|edgehtml|safari', tests(//java/...))
         env:
           DISPLAY: :99
 

BUILD.bazel

@@ -13,17 +13,17 @@ filegroup(
 
 alias(
     name = "grid",
-    actual = "//java/server/src/org/openqa/selenium/grid:executable-grid",
+    actual = "//java/src/org/openqa/selenium/grid:executable-grid",
 )
 
 alias(
     name = "pinned-grid",
-    actual = "//java/server/src/org/openqa/selenium/grid:pinned-grid",
+    actual = "//java/src/org/openqa/selenium/grid:pinned-grid",
 )
 
 alias(
     name = "debug-server",
-    actual = "//java/client/test/org/openqa/selenium/environment:appserver",
+    actual = "//java/test/org/openqa/selenium/environment:appserver",
 )
 
 alias(
@@ -33,7 +33,7 @@ alias(
 
 alias(
     name = "selenium-server-standalone",
-    actual = "//java/server/src/org/openqa/selenium/grid:selenium_server_deploy.jar",
+    actual = "//java/src/org/openqa/selenium/grid:selenium_server_deploy.jar",
 )
 
 java_binary(
@@ -47,7 +47,7 @@ java_binary(
     jvm_flags = chrome_jvm_flags + firefox_jvm_flags,
     main_class = "org.openqa.selenium.grid.Bootstrap",
     runtime_deps = [
-        "//java/server/src/org/openqa/selenium/grid",
+        "//java/src/org/openqa/selenium/grid",
         artifact("org.slf4j:slf4j-jdk14"),
     ],
 )