我知道這已被問了很多次,但我無法弄清楚。 :(在我的測試線程「主」java.lang.NoClassDefFoundError異常
我有一個大項目和結構是這樣的:
Project - build
- Config
- src
- tst
- build.xml
- webapp
- eclipse-bin
有下TST/COM/MySpace的/網關/內容/的Restlet/SanityTest.java 一個Java文件中java文件:
package com.myspace.gateway.content.restlet;
...
public class SanityTest extends ContentGatewayRestletResourceTestCase {
...
public static void main() {
}
}
整個項目編譯後,SanityTest的類文件是在構建/私營/班/測試/ COM/MySpace的/網關/內容/的Restlet/SanityTest.class
我進入了build/private/classes/tests並運行了「java -cp」。 。com.myspace.gateway.content.restlet.SanityTest」,但得到的NoClassDefFoundError的
請幫我
!PS: 堆棧跟蹤:
Exception in thread "main" java.lang.NoClassDefFoundError: com/myspace/gateway/content/ContentGatewayTestCase
at java.lang.ClassLoader.defineClass1(Native Method)
at java.lang.ClassLoader.defineClass(Unknown Source)
at java.security.SecureClassLoader.defineClass(Unknown Source)
at java.net.URLClassLoader.defineClass(Unknown Source)
at java.net.URLClassLoader.access$000(Unknown Source)
at java.net.URLClassLoader$1.run(Unknown Source)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(Unknown Source)
at java.lang.ClassLoader.loadClass(Unknown Source)
at sun.misc.Launcher$AppClassLoader.loadClass(Unknown Source)
at java.lang.ClassLoader.loadClass(Unknown Source)
at java.lang.ClassLoader.loadClassInternal(Unknown Source)
at java.lang.ClassLoader.defineClass1(Native Method)
at java.lang.ClassLoader.defineClass(Unknown Source)
at java.security.SecureClassLoader.defineClass(Unknown Source)
at java.net.URLClassLoader.defineClass(Unknown Source)
at java.net.URLClassLoader.access$000(Unknown Source)
at java.net.URLClassLoader$1.run(Unknown Source)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(Unknown Source)
at java.lang.ClassLoader.loadClass(Unknown Source)
at sun.misc.Launcher$AppClassLoader.loadClass(Unknown Source)
at java.lang.ClassLoader.loadClass(Unknown Source)
at java.lang.ClassLoader.loadClassInternal(Unknown Source)
Caused by: java.lang.ClassNotFoundException: com.myspace.gateway.content.ContentGatewayTestCase
at java.net.URLClassLoader$1.run(Unknown Source)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(Unknown Source)
at java.lang.ClassLoader.loadClass(Unknown Source)
at sun.misc.Launcher$AppClassLoader.loadClass(Unknown Source)
at java.lang.ClassLoader.loadClass(Unknown Source)
at java.lang.ClassLoader.loadClassInternal(Unknown Source)
... 24 more
Could not find the main class: com.myspace.gateway.content.restlet.SanityTest. Program will exit.
哇我需要重新構造我的代碼... – StackJay
即使您在類路徑中正確地使用類,也會發生NoClassDefFoundError。原因可能是失敗的靜態代碼或任何異常,而類加載器試圖加載類 –
你可以複製完整的錯誤,包括堆棧跟蹤到你的問題?請使用「編輯」按鈕,並正確格式化它。 – RealSkeptic