由于 Java 版本，Spinnaker hal 无法启动

如何解决由于 Java 版本，Spinnaker hal 无法启动

我无法在本地 mac 中启动 hal，我之前使用的是 java8，现在我升级到 java11，仍然看到相同的错误。

Muthus-MBP-2:~ muthukumar$ hal -v
The halyard daemon isn't running yet... starting it manually........................................................
Waiting for halyard to start timed out after 122 seconds
Muthus-MBP-2:~ muthukumar$ java -version
openjdk version "11.0.10" 2021-01-19
OpenJDK Runtime Environment (build 11.0.10+9)
OpenJDK 64-Bit Server VM (build 11.0.10+9,mixed mode)
Muthus-MBP-2:~ muthukumar$ cd /var/log/spinnaker/halyard/
Muthus-MBP-2:halyard muthukumar$ cat *
Error: A JNI error has occurred,please check your installation and try again
Exception in thread "main" java.lang.UnsupportedClassversionError: com/netflix/spinnaker/halyard/Main has been compiled by a more recent version of the Java Runtime (class file version 55.0),this version of the Java Runtime only recognizes class file versions up to 52.0
    at java.lang.classLoader.defineClass1(Native Method)
    at java.lang.classLoader.defineClass(ClassLoader.java:756)
    at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:142)
    at java.net.urlclassloader.defineClass(urlclassloader.java:468)
    at java.net.urlclassloader.access$100(urlclassloader.java:74)
    at java.net.urlclassloader$1.run(urlclassloader.java:369)
    at java.net.urlclassloader$1.run(urlclassloader.java:363)
    at java.security.AccessController.doPrivileged(Native Method)
    at java.net.urlclassloader.findClass(urlclassloader.java:362)
    at java.lang.classLoader.loadClass(ClassLoader.java:418)
    at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:352)
    at java.lang.classLoader.loadClass(ClassLoader.java:351)
    at sun.launcher.LauncherHelper.checkAndLoadMain(LauncherHelper.java:601)
Muthus-MBP-2:halyard muthukumar$  ```

解决方法

确保您的 JAVA_HOME 环境变量设置为 halyard 可能在查找 Java 安装时遇到问题。