Remove check with hardcoded GERRIT_NEXT_VERSION

Checking against a fixed GERRIT_NEXT_VERSION is
a very short-sighted approach, as the next version is
evolving continuously.

Fix the issue where a stable next version was
incorrectly detected as master, just because the
Gerrit versions moved on.

Bug: Issue 11264
Change-Id: I3c3c0fd5e485ec53a5cbd21ae76154a558f2bd9f

src/main/java/com/googlesource/gerrit/plugins/manager/GerritVersionBranch.java

diff --git a/src/main/java/com/googlesource/gerrit/plugins/manager/GerritVersionBranch.java b/src/main/java/com/googlesource/gerrit/plugins/manager/GerritVersionBranch.java
index 6a36133..ab75730 100644
--- a/src/main/java/com/googlesource/gerrit/plugins/manager/GerritVersionBranch.java
+++ b/src/main/java/com/googlesource/gerrit/plugins/manager/GerritVersionBranch.java
@@ -15,13 +15,11 @@
 package com.googlesource.gerrit.plugins.manager;
 
 public class GerritVersionBranch {
-  private static final String GERRIT_NEXT_VERSION = "3.0";
 
   public static String getBranch(String gerritVersion) {
     if (gerritVersion == null
         || gerritVersion.trim().isEmpty()
-        || !Character.isDigit(gerritVersion.trim().charAt(0))
-        || gerritVersion.startsWith(GERRIT_NEXT_VERSION)) {
+        || !Character.isDigit(gerritVersion.trim().charAt(0))) {
       return "master";
     }
     String[] versionNumbers = gerritVersion.split("\\.");
@@ -34,12 +32,8 @@
 
     if (versionNumbers.length > 2) {
       String fixVersionNumber = versionNumbers[2];
-      if (fixVersionNumber.contains("-")) {
-        String nextVersion =
-            String.format("%s.%d", versionNumbers[0], Integer.parseInt(versionNumbers[1]) + 1);
-        if (nextVersion.equals(GERRIT_NEXT_VERSION)) {
-          return "master";
-        }
+      if (fixVersionNumber.contains("-") && !fixVersionNumber.contains("-rc")) {
+        return "master";
       }
     }
 

src/test/java/com/googlesource/gerrit/plugins/manager/GerritVersionBranchTest.java

diff --git a/src/test/java/com/googlesource/gerrit/plugins/manager/GerritVersionBranchTest.java b/src/test/java/com/googlesource/gerrit/plugins/manager/GerritVersionBranchTest.java
index f0f6a4b..2c91b6a 100644
--- a/src/test/java/com/googlesource/gerrit/plugins/manager/GerritVersionBranchTest.java
+++ b/src/test/java/com/googlesource/gerrit/plugins/manager/GerritVersionBranchTest.java
@@ -44,12 +44,13 @@
 
   @Test
   public void getBranchReturnsCorrectBranchForDevelopmentOnStableBranches() throws Exception {
-    assertBranch("2.16.8-17-gc8b633d5ce", "stable-2.16");
+    assertBranch("2.16.8", "stable-2.16");
+    assertBranch("3.0.0-rc2", "stable-3.0");
   }
 
   @Test
   public void getBranchReturnsCorrectBranchForDevelopmentOnMaster() throws Exception {
-    assertBranch("3.0.0-rc2-237-gae0124c68e", "master");
+    assertBranch("3.0.0-237-gae0124c68e", "master");
   }
 
   @Test