Clean up the Bazel JUnit test runner

To remove a dependency on Dagger quickly, the auto-generated boilerplate code was checked-in[1]. Since we are no longer using any dependency injection, most of the indirection with modules, suppliers/providers, etc are of no value.

This change also removes the duplication in `JUnit4BazelMock` by moving the test overrides into `JUnit4RunnerModule` / `JUnit4RunnerTest$TestModule`

[1] 225f69f

PiperOrigin-RevId: 518291786
Change-Id: I1b4ea99a0d4b5f0265fb98d98618e6232e247698

src/java_tools/junitrunner/java/com/google/testing/junit/runner/BUILD

@@ -7,32 +7,14 @@ package(
     ],
 )
 
-filegroup(
-    name = "common_runner_java_files",
-    srcs = [
-        "BazelTestRunnerModule.java",
-        "JUnit4Bazel.java",
-        "ResultWriterFactory.java",
-        "StderrStreamFactory.java",
-        "StdoutStreamFactory.java",
-    ],
-)
-
 java_library(
     name = "test_runner",
     srcs = [
         "BazelTestRunner.java",
-        ":common_runner_java_files",
     ],
     deps = [
         "//src/java_tools/junitrunner/java/com/google/testing/junit/runner/internal",
         "//src/java_tools/junitrunner/java/com/google/testing/junit/runner/junit4",
-        "//src/java_tools/junitrunner/java/com/google/testing/junit/runner/model",
-        "//src/java_tools/junitrunner/java/com/google/testing/junit/runner/sharding",
-        "//src/java_tools/junitrunner/java/com/google/testing/junit/runner/util",
-        "//third_party:error_prone_annotations",
-        "//third_party:guava",
-        "//third_party:junit4",
     ],
 )
 

src/java_tools/junitrunner/java/com/google/testing/junit/runner/BazelTestRunner.java

@@ -15,13 +15,14 @@
 package com.google.testing.junit.runner;
 
 import com.google.testing.junit.runner.internal.StackTraces;
+import com.google.testing.junit.runner.junit4.JUnit4Bazel;
 import com.google.testing.junit.runner.junit4.JUnit4InstanceModules.Config;
-import com.google.testing.junit.runner.junit4.JUnit4InstanceModules.SuiteClass;
 import com.google.testing.junit.runner.junit4.JUnit4Runner;
 import java.io.PrintStream;
 import java.text.DateFormat;
 import java.text.SimpleDateFormat;
 import java.util.Date;
+import java.util.Locale;
 import java.util.concurrent.TimeUnit;
 
 /**
@@ -88,7 +89,7 @@ public static void main(String[] args) {
 
     printStackTracesIfJvmExitHangs(stderr);
 
-    DateFormat format = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
+    DateFormat format = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss", Locale.getDefault());
     Date shutdownTime = new Date();
     String formattedShutdownTime = format.format(shutdownTime);
     System.err.printf("-- JVM shutdown starting at %s --%n%n", formattedShutdownTime);
@@ -140,11 +141,7 @@ private static int runTestsInSuite(String suiteClassName, String[] args) {
 
     // TODO(kush): Use a new classloader for the following instantiation.
     JUnit4Runner runner =
-        JUnit4Bazel.builder()
-            .suiteClass(new SuiteClass(suite))
-            .config(new Config(args))
-            .build()
-            .runner();
+        JUnit4Bazel.builder().suiteClass(suite).config(new Config(args)).build().runner();
     return runner.run().wasSuccessful() ? 0 : 1;
   }