A JAVA Exception has occurred 問題 解決(轉)
阿新 • • 發佈:2020-09-07
- 1
Exception in thread "main" java.lang.UnsupportedClassVersionError: com/test/inherited/InheritableSon : Unsupported major.minor version 52.0
at java.lang.ClassLoader.defineClass1(Native Method)
at java.lang.ClassLoader.defineClass(ClassLoader.java:800)
at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:142)
at java.net.URLClassLoader.defineClass(URLClassLoader.java:449)
at java.net.URLClassLoader.access$100(URLClassLoader.java:71)
at java.net.URLClassLoader$1.run(URLClassLoader.java:361)
at java.net.URLClassLoader$1.run(URLClassLoader.java:355)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(URLClassLoader.java:354)
at java.lang.ClassLoader.loadClass(ClassLoader.java:425)
at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:308)
at java.lang.ClassLoader.loadClass(ClassLoader.java:358)
at sun.launcher.LauncherHelper.checkAndLoadMain(LauncherHelper.java:482)
檢視是因為編譯環境的改變造成的。
解決辦法:
將專案的編譯環境設定成當前的JDK版本即可
步驟:
1. 右鍵專案—>Properties—> java Compiler–>Compiler Compliance level
2. 選擇自己安裝的當前的JDK環境即可