プロジェクトでは、Websepear をサーバーとして使用しています。Json をプロジェクトに追加した後、以下のエラーが発生します。
---Original exception---
java.lang.UnsupportedClassVersionError: (org/json/JSONObject) bad major version at offset=6
at java.lang.ClassLoader.defineClassImpl(Native Method)
at java.lang.ClassLoader.defineClass(ClassLoader.java:222)
at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:148)
at com.ibm.ws.classloader.CompoundClassLoader._defineClass(CompoundClassLoader.java:526)
at com.ibm.ws.classloader.CompoundClassLoader.findClass(CompoundClassLoader.java:477)
ここに例外の説明があります。
Caused by: java.lang.LinkageError: LinkageError while defining class: org.json.JSONObject
Could not be defined due to: (org/json/JSONObject) bad major version at offset=6
This is often caused by having a class defined at multiple
locations within the classloader hierarchy. Other potential causes
include compiling against an older or newer version of the class
that has an incompatible method signature.
Dumping the current context classloader hierarchy:
==> indicates defining classloader
==>[0]
注:- Java 6 でプロジェクトをビルドして実行しました