Why doesn't a runnable JAR exported from Eclipse work?
Solution 1
Try to click on the option “Package required libraries into generated JAR”.
A JAR file is a regular compressed archive. Make sure that all the required libraries in your MANIFEST.MF file are present within the generated file.
Solution 2
Try to run the JAR from the command line - it will most likely display a useful error message.
There probably are some dependencies that eclipse doesn't know about or which aren't configured correctly within it, and are therefore missing from the JAR.
In general, it's not a good idea to rely on IDE functionality to produce deliverables - it depends on too many hidden factors and can't be automated for a build server. Any project that's beyond the experimental/toy stage should have an automated build via Ant or Maven.
Solution 3
The message
Could not find the main class: violet-0.21.2-SVN.jar. Program will exit.
indicates that you have gotten the Main-Class: MyPackage.MyClass
line wrong in the Manifest when packaging together the jar file. You need to give the full name of the class with the main(String[] args) method.
See http://download.oracle.com/javase/tutorial/deployment/jar/appman.html for details.
Comments
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Cobra_Fast almost 2 years
I have a project which runs fine from within Eclipse. But when I export it to a runnable JAR with dependencies packed into it it won't run. The error, when running the JAR from console is:
EDIT (didnt run it with -jar before):
INFO: Loading XML bean definitions from class path resource [applicationContext- framework.xml] Exception in thread "main" java.lang.reflect.InvocationTargetException at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source) at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) at java.lang.reflect.Method.invoke(Unknown Source) at org.eclipse.jdt.internal.jarinjarloader.JarRsrcLoader.main(JarRsrcLoa der.java:58) Caused by: org.springframework.beans.factory.BeanDefinitionStoreException: IOExc eption parsing XML document from class path resource [applicationContext-framewo rk.xml]; nested exception is java.io.FileNotFoundException: class path resource [applicationContext-framework.xml] cannot be opened because it does not exist at org.springframework.beans.factory.xml.XmlBeanDefinitionReader.loadBea nDefinitions(XmlBeanDefinitionReader.java:349) at org.springframework.beans.factory.xml.XmlBeanDefinitionReader.loadBea nDefinitions(XmlBeanDefinitionReader.java:310) at org.springframework.beans.factory.support.AbstractBeanDefinitionReade r.loadBeanDefinitions(AbstractBeanDefinitionReader.java:143) at org.springframework.beans.factory.support.AbstractBeanDefinitionReade r.loadBeanDefinitions(AbstractBeanDefinitionReader.java:178) at org.springframework.beans.factory.support.AbstractBeanDefinitionReade r.loadBeanDefinitions(AbstractBeanDefinitionReader.java:149) at org.springframework.beans.factory.support.AbstractBeanDefinitionReade r.loadBeanDefinitions(AbstractBeanDefinitionReader.java:212) at org.springframework.context.support.AbstractXmlApplicationContext.loa dBeanDefinitions(AbstractXmlApplicationContext.java:113) at org.springframework.context.support.AbstractXmlApplicationContext.loa dBeanDefinitions(AbstractXmlApplicationContext.java:80) at org.springframework.context.support.AbstractRefreshableApplicationCon text.refreshBeanFactory(AbstractRefreshableApplicationContext.java:123) at org.springframework.context.support.AbstractApplicationContext.obtain FreshBeanFactory(AbstractApplicationContext.java:422) at org.springframework.context.support.AbstractApplicationContext.refres h(AbstractApplicationContext.java:352) at org.springframework.context.support.ClassPathXmlApplicationContext.<i nit>(ClassPathXmlApplicationContext.java:139) at org.springframework.context.support.ClassPathXmlApplicationContext.<i nit>(ClassPathXmlApplicationContext.java:93) at com.horstmann.violet.UMLEditorApplication.getApplicationContext(UMLEd itorApplication.java:111) at com.horstmann.violet.UMLEditorApplication.<init>(UMLEditorApplication .java:94) at com.horstmann.violet.UMLEditorApplication.main(UMLEditorApplication.j ava:84) ... 5 more Caused by: java.io.FileNotFoundException: class path resource [applicationContex t-framework.xml] cannot be opened because it does not exist at org.springframework.core.io.ClassPathResource.getInputStream(ClassPat hResource.java:143) at org.springframework.beans.factory.xml.XmlBeanDefinitionReader.loadBea nDefinitions(XmlBeanDefinitionReader.java:336) ... 20 more
but the file is in
resources/
from the JAR-root.What am I missing or doing wrong?