运行ant目标时发生java.lang.NoClassDefFoundError

我有一个拥有java编译目标的ant构建文件。同样的eclipse发布工作正常，并成功运行其他ant构建文件。虽然在这个特定的工作空间;当我运行Ant目标失败与以下错误：运行ant目标时发生java.lang.NoClassDefFoundError

[javac] C:\MyProject\scripts\build.xml:119: warning: 'includeantruntime' was not set, defaulting to build.sysclasspath=last; set to false for repeatable builds 
    [javac] Compiling 1 source file to C:\MyProject\build 
    [javac] Compiling 9 source files to C:\MyProject\build 
    [javac] java.lang.NoClassDefFoundError: com/sun/tools/javac/Main 
    [javac] Exception in thread "main" Could not find the main class: com.sun.tools.javac.Main. Program will exit. 

BUILD FAILED

我也曾尝试运行从命令提示符下生成文件，看到了同样的问题。这是否指向任何明显的问题。日食有蚂蚁路径集，我已检查它指向日食中的正确位置。

我还验证了tools.jar也包含在项目路径中。

系统信息：

System info: 
Windows 7 Enterprise edition, 64 bit 
JDK 1.6b35 
ANT 1.8.3

任何意见将帮助。

============================================== ==============================

按照@MickJ的要求我也在运行构建时添加输出目标与诊断选项（我加-diagnostics到任何构建运行配置在Eclipse）

------- Ant diagnostics report ------- 
Apache Ant(TM) version 1.8.2 compiled on December 20 2010 
------------------------------------------- 
Implementation Version 
------------------------------------------- 
core tasks  : 1.8.2 in file:/C:/ToolBox/apps/dumps/Eclipse3.7/plugins/org.apache.ant_1.8.2.v20120109-1030/lib/ant.jar 
------------------------------------------- 
ANT PROPERTIES 
------------------------------------------- 
ant.version: Apache Ant(TM) version 1.8.2 compiled on December 20 2010 
ant.java.version: 1.6 
Is this the Apache Harmony VM? no 
Is this the Kaffe VM? no 
Is this gij/gcj? no 
ant.core.lib: C:\ToolBox\apps\dumps\Eclipse3.7\plugins\org.apache.ant_1.8.2.v20120109-1030\lib\ant.jar 
ant.home: C:\ToolBox\apps\dumps\Eclipse3.7\plugins\org.apache.ant_1.8.2.v20120109-1030 
------------------------------------------- 
ANT_HOME/lib jar listing 
------------------------------------------- 
ant.home: C:\ToolBox\apps\dumps\Eclipse3.7\plugins\org.apache.ant_1.8.2.v20120109-1030 
ant-antlr.jar (5989 bytes) 
ant-apache-bcel.jar (9097 bytes) 
ant-apache-bsf.jar (4249 bytes) 
ant-apache-log4j.jar (3361 bytes) 
ant-apache-oro.jar (40276 bytes) 
ant-apache-regexp.jar (4106 bytes) 
ant-apache-resolver.jar (4418 bytes) 
ant-apache-xalan2.jar (2633 bytes) 
ant-commons-logging.jar (4207 bytes) 
ant-commons-net.jar (85302 bytes) 
ant-jai.jar (22684 bytes) 
ant-javamail.jar (8167 bytes) 
ant-jdepend.jar (8477 bytes) 
ant-jmf.jar (7093 bytes) 
ant-jsch.jar (40320 bytes) 
ant-junit.jar (101811 bytes) 
ant-junit4.jar (7517 bytes) 
ant-launcher.jar (12567 bytes) 
ant-netrexx.jar (10656 bytes) 
ant-swing.jar (7847 bytes) 
ant-testutil.jar (15576 bytes) 
ant.jar (1927228 bytes) 
------------------------------------------- 
USER_HOME/.ant/lib jar listing 
------------------------------------------- 
user.home: C:\Users\oo018c 
No such directory. 
------------------------------------------- 
Tasks availability 
------------------------------------------- 
image : Missing dependency javax.media.jai.PlanarImage 
sshexec : Missing dependency com.jcraft.jsch.Logger 
wlrun : Not Available (the implementation class is not present) 
scp : Missing dependency com.jcraft.jsch.Logger 
stlist : Not Available (the implementation class is not present) 
sshsession : Missing dependency com.jcraft.jsch.Logger 
starteam : Not Available (the implementation class is not present) 
stlabel : Not Available (the implementation class is not present) 
jdepend : Missing dependency jdepend.xmlui.JDepend 
stcheckin : Not Available (the implementation class is not present) 
stcheckout : Not Available (the implementation class is not present) 
ejbc : Not Available (the implementation class is not present) 
wlstop : Not Available (the implementation class is not present) 
ddcreator : Not Available (the implementation class is not present) 
A task being missing/unavailable should only matter if you are trying to use it 
------------------------------------------- 
org.apache.env.Which diagnostics 
------------------------------------------- 
Not available. 
Download it at http://xml.apache.org/commons/ 
------------------------------------------- 
XML Parser information 
------------------------------------------- 
XML Parser : com.sun.org.apache.xerces.internal.jaxp.SAXParserImpl 
XML Parser Location: unknown 
Namespace-aware parser : com.sun.org.apache.xerces.internal.jaxp.SAXParserImpl$JAXPSAXParser 
Namespace-aware parser Location: unknown 
------------------------------------------- 
XSLT Processor information 
------------------------------------------- 
XSLT Processor : com.sun.org.apache.xalan.internal.xsltc.trax.TransformerImpl 
XSLT Processor Location: unknown 
------------------------------------------- 
System properties 
------------------------------------------- 
java.runtime.name : Java(TM) SE Runtime Environment 
sun.boot.library.path : C:\Program Files\Java\jdk1.6.0_37\jre\bin 
java.vm.version : 20.12-b01 
ant.library.dir : C:\ToolBox\apps\dumps\Eclipse3.7\plugins\org.apache.ant_1.8.2.v20120109-1030\lib 
java.vm.vendor : Sun Microsystems Inc. 
java.vendor.url : http://java.sun.com/ 
path.separator : ; 
java.vm.name : Java HotSpot(TM) 64-Bit Server VM 
file.encoding.pkg : sun.io 
user.country : US 
sun.java.launcher : SUN_STANDARD 
sun.os.patch.level : Service Pack 1 
java.vm.specification.name : Java Virtual Machine Specification 
user.dir : C:\ToolBox\work\ClearCase\oo018c_toolbox_test_data\vobs\toolbox_test_data\Projects\TestFixtures\scripts 
java.runtime.version : 1.6.0_37-b06 
java.awt.graphicsenv : sun.awt.Win32GraphicsEnvironment 
java.endorsed.dirs : C:\Program Files\Java\jdk1.6.0_37\jre\lib\endorsed 
os.arch : amd64 
java.io.tmpdir : C:\Users\oo018c\AppData\Local\Temp\ 
line.separator : 
java.vm.specification.vendor : Sun Microsystems Inc. 
user.variant : 
os.name : Windows 7 
ant.home : C:\ToolBox\apps\dumps\Eclipse3.7\plugins\org.apache.ant_1.8.2.v20120109-1030 
sun.jnu.encoding : Cp1252 
java.library.path : C:\Windows\system32;C:\Windows\Sun\Java\bin;C:\Windows\system32;C:\Windows;C:\oracle\11gR2client64bit\bin;C:\Windows\system32;C:\Windows;C:\Windows\System32\Wbem;C:\Windows\System32\WindowsPowerShell\v1.0\;C:\Program Files\Gemalto\Classic Client\BIN;C:\Program Files (x86)\Gemalto\Classic Client\BIN;C:\Program Files (x86)\Common Files\ACD Systems\EN;C:\Program Files (x86)\Common Files\ACD Systems;C:\Program Files\Intel\WiFi\bin\;C:\Program Files\Common Files\Intel\WirelessCommon\;C:\Program Files\Adobe\Adobe PDF iFilter 9 for 64-bit platforms\bin\;C:\Program Files (x86)\IBM\RationalSDLC\ClearCase\bin;C:\Program Files (x86)\IBM\RationalSDLC\common;C:\oracle\11gR2client32bit\bin\;C:\Program Files\Java\jdk1.6.0_37\bin;C:\Program Files (x86)\Git\cmd;C:\Program Files (x86)\Git\bin;C:\ToolBox\apps\dumps\mongodb-2.0.4\bin;C:\ToolBox\apps\dumps\scala-2.9.2\bin;C:\ToolBox\apps\dumps\Ant1.8.3\bin;C:\ToolBox\apps\dumps\apache-maven-3.0.4\bin;C:\ToolBox\apps\dumps\ccrccli_8.0.0.2;C:\ToolBox\apps\dumps\apache-tomcat-6.0.20\bin;C:\ToolBox\apps\dumps\Eclipse-TPTP-AgentControllerWinEM64T-4.7.2\plugins\org.eclipse.tptp.javaprofiler;C:\ToolBox\apps\dumps\Eclipse-TPTP-AgentControllerWinEM64T-4.7.2\bin;c:\cygwin\bin;c:\cygwin\usr\bin;.;C:\ToolBox\apps\dumps\Eclipse3.7\configuration\org.eclipse.osgi\bundles\778\1\.cp 
java.specification.name : Java Platform API Specification 
java.class.version : 50.0 
sun.management.compiler : HotSpot 64-Bit Tiered Compilers 
os.version : 6.1 
user.home : C:\Users\oo018c 
user.timezone : America/Los_Angeles 
java.awt.printerjob : sun.awt.windows.WPrinterJob 
file.encoding : UTF-8 
java.specification.version : 1.6 
user.name : oo018c 
java.class.path : C:\ToolBox\apps\dumps\Eclipse3.7\plugins\org.apache.ant_1.8.2.v20120109-1030\lib\ant-antlr.jar;C:\ToolBox\apps\dumps\Eclipse3.7\plugins\org.apache.ant_1.8.2.v20120109-1030\lib\ant-apache-bcel.jar;C:\ToolBox\apps\dumps\Eclipse3.7\plugins\org.apache.ant_1.8.2.v20120109-1030\lib\ant-apache-bsf.jar;C:\ToolBox\apps\dumps\Eclipse3.7\plugins\org.apache.ant_1.8.2.v20120109-1030\lib\ant-apache-log4j.jar;C:\ToolBox\apps\dumps\Eclipse3.7\plugins\org.apache.ant_1.8.2.v20120109-1030\lib\ant-apache-oro.jar;C:\ToolBox\apps\dumps\Eclipse3.7\plugins\org.apache.ant_1.8.2.v20120109-1030\lib\ant-apache-regexp.jar;C:\ToolBox\apps\dumps\Eclipse3.7\plugins\org.apache.ant_1.8.2.v20120109-1030\lib\ant-apache-resolver.jar;C:\ToolBox\apps\dumps\Eclipse3.7\plugins\org.apache.ant_1.8.2.v20120109-1030\lib\ant-apache-xalan2.jar;C:\ToolBox\apps\dumps\Eclipse3.7\plugins\org.apache.ant_1.8.2.v20120109-1030\lib\ant-commons-logging.jar;C:\ToolBox\apps\dumps\Eclipse3.7\plugins\org.apache.ant_1.8.2.v20120109-1030\lib\ant-commons-net.jar;C:\ToolBox\apps\dumps\Eclipse3.7\plugins\org.apache.ant_1.8.2.v20120109-1030\lib\ant-jai.jar;C:\ToolBox\apps\dumps\Eclipse3.7\plugins\org.apache.ant_1.8.2.v20120109-1030\lib\ant-javamail.jar;C:\ToolBox\apps\dumps\Eclipse3.7\plugins\org.apache.ant_1.8.2.v20120109-1030\lib\ant-jdepend.jar;C:\ToolBox\apps\dumps\Eclipse3.7\plugins\org.apache.ant_1.8.2.v20120109-1030\lib\ant-jmf.jar;C:\ToolBox\apps\dumps\Eclipse3.7\plugins\org.apache.ant_1.8.2.v20120109-1030\lib\ant-jsch.jar;C:\ToolBox\apps\dumps\Eclipse3.7\plugins\org.apache.ant_1.8.2.v20120109-1030\lib\ant-junit.jar;C:\ToolBox\apps\dumps\Eclipse3.7\plugins\org.apache.ant_1.8.2.v20120109-1030\lib\ant-junit4.jar;C:\ToolBox\apps\dumps\Eclipse3.7\plugins\org.apache.ant_1.8.2.v20120109-1030\lib\ant-launcher.jar;C:\ToolBox\apps\dumps\Eclipse3.7\plugins\org.apache.ant_1.8.2.v20120109-1030\lib\ant-netrexx.jar;C:\ToolBox\apps\dumps\Eclipse3.7\plugins\org.apache.ant_1.8.2.v20120109-1030\lib\ant-swing.jar;C:\ToolBox\apps\dumps\Eclipse3.7\plugins\org.apache.ant_1.8.2.v20120109-1030\lib\ant-testutil.jar;C:\ToolBox\apps\dumps\Eclipse3.7\plugins\org.apache.ant_1.8.2.v20120109-1030\lib\ant.jar;C:\ToolBox\apps\dumps\Eclipse3.7\configuration\org.eclipse.osgi\bundles\182\1\.cp\lib\antdebug.jar;C:\ToolBox\apps\dumps\Eclipse3.7\configuration\org.eclipse.osgi\bundles\182\1\.cp\lib\remote.jar;C:\ToolBox\apps\dumps\Eclipse3.7\configuration\org.eclipse.osgi\bundles\183\1\.cp\lib\remoteAnt.jar;C:\Program Files\Java\jdk1.6.0_37\lib\tools.jar;C:\ToolBox\apps\dumps\Eclipse3.7\plugins\org.eclipse.swt.win32.win32.x86_64_3.7.2.v3740f.jar 
java.vm.specification.version : 1.0 
sun.arch.data.model : 64 
java.home : C:\Program Files\Java\jdk1.6.0_37\jre 
sun.java.command : org.eclipse.ant.internal.launching.remote.InternalAntRunner -diagnostics -Dorg.eclipse.ant.core.ANT_PROCESS_ID=1364337380010 -Declipse.connect.port=51250 -Declipse.pdebuild.home=/C:/ToolBox/apps/dumps/Eclipse3.7/plugins/org.eclipse.pde.build_3.7.0.v20111116-2009/./ -Declipse.pdebuild.scripts=/C:/ToolBox/apps/dumps/Eclipse3.7/plugins/org.eclipse.pde.build_3.7.0.v20111116-2009/scripts/ -Declipse.pdebuild.templates=/C:/ToolBox/apps/dumps/Eclipse3.7/plugins/org.eclipse.pde.build_3.7.0.v20111116-2009/templates/ -Dant.home=C:\ToolBox\apps\dumps\Eclipse3.7\plugins\org.apache.ant_1.8.2.v20120109-1030 -logger org.eclipse.ant.internal.launching.remote.logger.RemoteAntBuildLogger -inputhandler org.eclipse.ant.internal.ui.antsupport.inputhandler.ProxyInputHandler -buildfile C:\ToolBox\work\ClearCase\oo018c_toolbox_test_data\vobs\toolbox_test_data\Projects\TestFixtures\scripts\build.xml CC.compile 
java.specification.vendor : Sun Microsystems Inc. 
user.language : en 
awt.toolkit : sun.awt.windows.WToolkit 
java.vm.info : mixed mode 
java.version : 1.6.0_37 
java.ext.dirs : C:\Program Files\Java\jdk1.6.0_37\jre\lib\ext;C:\Windows\Sun\Java\lib\ext 
sun.boot.class.path : C:\Program Files\Java\jdk1.6.0_37\jre\lib\resources.jar;C:\Program Files\Java\jdk1.6.0_37\jre\lib\rt.jar;C:\Program Files\Java\jdk1.6.0_37\jre\lib\sunrsasign.jar;C:\Program Files\Java\jdk1.6.0_37\jre\lib\jsse.jar;C:\Program Files\Java\jdk1.6.0_37\jre\lib\jce.jar;C:\Program Files\Java\jdk1.6.0_37\jre\lib\charsets.jar;C:\Program Files\Java\jdk1.6.0_37\jre\lib\modules\jdk.boot.jar;C:\Program Files\Java\jdk1.6.0_37\jre\classes 
java.vendor : Sun Microsystems Inc. 
file.separator : \ 
java.vendor.url.bug : http://java.sun.com/cgi-bin/bugreport.cgi 
sun.cpu.endian : little 
sun.io.unicode.encoding : UnicodeLittle 
sun.desktop : windows 
sun.cpu.isalist : amd64 
------------------------------------------- 
Temp dir 
------------------------------------------- 
Temp dir is C:\Users\oo018c\AppData\Local\Temp\ 
Temp dir is writeable 
Temp dir alignment with system clock is 33 ms 
------------------------------------------- 
Locale information 
------------------------------------------- 
Timezone Pacific Standard Time offset=-25200000 
------------------------------------------- 
Proxy information 
------------------------------------------- 
Java1.5+ proxy settings: 
Direct connection 
Total time: 1 second

来源

2013-03-26 Ayusman

你可以尝试添加你的JDK/bin目录路径到系统“路径”变量。转到“我的电脑” - >右键单击 - >属性 - >高级 - >环境变量 - >系统变量 - >路径，然后在您的jdk bin路径后追加一个分号。否则，请确保ant.bat将正确的java家设置为jdk。 – MickJ 2013-03-26 20:50:15

@MickJ是的，我的设置已经是这样了。其他构建文件适用于我当前的环境设置。 – Ayusman 2013-03-26 20:59:09

你最近安装了jdk吗？你也可以发布你的蚂蚁生成脚本吗？另外如果可能的话，请运行'ant-diagnostics'并在此输出。 – MickJ 2013-03-26 21:11:17

你可以尝试添加您的J2SE - JDK/bin目录路径系统“路径”变量。转到“我的电脑” - >右键单击 - >属性 - >高级 - >环境变量 - >系统变量 - >路径，然后在您的jdk bin路径后追加一个分号。否则，请确保ant.bat将正确的java家设置为jdk。

您可以仔细检查以确保您的'JAVA_HOME'设置为“C：\ Program Files \ Java \ jdk1.6.0_37”。（如果JAVA_HOME还没有在那里，那么'新'否则选择JAVA_HOME），并将值设置为“我的电脑” - >右键单击 - >属性 - >高级 - >环境变量 - >系统变量 - >（如果JAVA_HOME不在那里， 'C：\ Program Files \ Java \ jdk1.6.0_37'（不含引号）。

现在关闭并启动一个全新的控制台并尝试运行您的ant脚本。

或者你可以只火在控制台下面开始Ant脚本之前：

设置JAVA_HOME = C：\ PROGRA〜1 \的Java \ jdk1.6.0_37

来源

2013-03-26 20:52:17 MickJ

是的，它已经在那里。 – Ayusman 2013-03-26 20:59:33

是的，我验证了这些设置，他们在那里。 – Ayusman 2013-03-27 16:35:51

运行ant目标时发生java.lang.NoClassDefFoundError

回答

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