[jira] [Created] (HBASE-25472) HBASE-24260 breaks JDK7 compilation in branch-1

["Wei-Chiu Chuang (Jira)" <ji...@apache.org>]

Wei-Chiu Chuang created HBASE-25472:
---------------------------------------

             Summary: HBASE-24260 breaks JDK7 compilation in branch-1
                 Key: HBASE-25472
                 URL: https://issues.apache.org/jira/browse/HBASE-25472
             Project: HBase
          Issue Type: Bug
            Reporter: Wei-Chiu Chuang


Found in PR-2799. 

{code}
public static String getZKQuorum(Configuration conf) {
    String port =
      Integer.toString(conf.getInt(HConstants.ZOOKEEPER_CLIENT_PORT, 2181));
    String[] serverHosts = conf.getStrings(HConstants.ZOOKEEPER_QUORUM, "localhost");
    for (int i = 0; i < serverHosts.length; i++) {
      serverHosts[i] = serverHosts[i] + ":" + port;
    }
    return String.join(",", serverHosts);
  }
{code}

Fails to compile 
{quote}
[ERROR] Failed to execute goal org.apache.maven.plugins:maven-compiler-plugin:3.8.1:compile (default-compile) on project hbase-it: Compilation failure
[ERROR] /home/jenkins/jenkins-home/workspace/Base-PreCommit-GitHub-PR_PR-2799/src/hbase-it/src/main/java/org/apache/hadoop/hbase/chaos/ChaosUtils.java:[46,18] cannot find symbol
[ERROR] symbol:   method join(java.lang.String,java.lang.String[])
[ERROR] location: class java.lang.String
{quote}

because String.join() is only available since JDK8.

CC: [~lokiore] [~ndimiduk]



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