Merge changes Iae0db563,I7e6695e0,I2a2eb65d

* changes:
  Test different formats for paths to import code owner configs
  FindOwnersCodeOwnerConfigParser: Remove limitation from class javadoc
  GeneralConfig: Fix error message for invalid fallback code owners
diff --git a/java/com/google/gerrit/plugins/codeowners/backend/findowners/FindOwnersCodeOwnerConfigParser.java b/java/com/google/gerrit/plugins/codeowners/backend/findowners/FindOwnersCodeOwnerConfigParser.java
index 561c3b1..7a4261a 100644
--- a/java/com/google/gerrit/plugins/codeowners/backend/findowners/FindOwnersCodeOwnerConfigParser.java
+++ b/java/com/google/gerrit/plugins/codeowners/backend/findowners/FindOwnersCodeOwnerConfigParser.java
@@ -50,14 +50,6 @@
  * <p>The syntax is described at in the {@code find-owners} plugin documentation at:
  * https://gerrit.googlesource.com/plugins/find-owners/+/master/src/main/resources/Documentation/syntax.md
  *
- * <p><strong>Note:</strong> Currently this class only supports a subset of the syntax. Only the
- * following syntax elements are supported:
- *
- * <ul>
- *   <li>comment: a line can be a comment (comments must start with '#')
- *   <li>code owner emails: a line can be the email of a code owner
- * </ul>
- *
  * <p>Comment lines are silently ignored.
  *
  * <p>Invalid lines cause the parsing to fail and trigger a {@link CodeOwnerConfigParseException}.
diff --git a/java/com/google/gerrit/plugins/codeowners/config/GeneralConfig.java b/java/com/google/gerrit/plugins/codeowners/config/GeneralConfig.java
index 54ddf7c..8a15dcb 100644
--- a/java/com/google/gerrit/plugins/codeowners/config/GeneralConfig.java
+++ b/java/com/google/gerrit/plugins/codeowners/config/GeneralConfig.java
@@ -227,7 +227,7 @@
               + " plugin.%s.%s). Falling back to default value %s.",
           pluginConfigFromGerritConfig.getString(KEY_FALLBACK_CODE_OWNERS),
           pluginName,
-          KEY_ENABLE_VALIDATION_ON_COMMIT_RECEIVED,
+          KEY_FALLBACK_CODE_OWNERS,
           FallbackCodeOwners.NONE);
       return FallbackCodeOwners.NONE;
     }
diff --git a/javatests/com/google/gerrit/plugins/codeowners/backend/CodeOwnerConfigReferenceTest.java b/javatests/com/google/gerrit/plugins/codeowners/backend/CodeOwnerConfigReferenceTest.java
index 747bd83..42d3696 100644
--- a/javatests/com/google/gerrit/plugins/codeowners/backend/CodeOwnerConfigReferenceTest.java
+++ b/javatests/com/google/gerrit/plugins/codeowners/backend/CodeOwnerConfigReferenceTest.java
@@ -14,10 +14,15 @@
 
 package com.google.gerrit.plugins.codeowners.backend;
 
+import static com.google.common.truth.PathSubject.paths;
 import static com.google.common.truth.Truth.assertThat;
+import static com.google.common.truth.Truth.assertWithMessage;
+import static com.google.common.truth.Truth8.assertThat;
 import static com.google.gerrit.testing.GerritJUnit.assertThrows;
 
 import com.google.gerrit.plugins.codeowners.acceptance.AbstractCodeOwnersTest;
+import java.nio.file.Path;
+import java.nio.file.Paths;
 import java.util.Optional;
 import org.junit.Test;
 
@@ -45,4 +50,23 @@
                     .build());
     assertThat(exception).hasMessageThat().isEqualTo("branch must be full name: master");
   }
+
+  @Test
+  public void absoluteFilePathCanBeSpecifiedInDifferentFormats() throws Exception {
+    Path expectedPath = Paths.get("/foo/OWNERS");
+    for (String inputPath : new String[] {"/foo/OWNERS", "//foo/OWNERS"}) {
+      Path path =
+          CodeOwnerConfigReference.create(CodeOwnerConfigImportMode.ALL, inputPath).filePath();
+      assertWithMessage(inputPath).about(paths()).that(path).isEqualTo(expectedPath);
+      assertThat(path.isAbsolute()).isTrue();
+    }
+  }
+
+  @Test
+  public void relativeFilePathCanBeSpecified() throws Exception {
+    Path path =
+        CodeOwnerConfigReference.create(CodeOwnerConfigImportMode.ALL, "foo/OWNERS").filePath();
+    assertThat(path).isEqualTo(Paths.get("foo/OWNERS"));
+    assertThat(path.isAbsolute()).isFalse();
+  }
 }