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java.lang.NoClassDefFoundError when running JMS consumer

Answer 1

+1 A:

-cp option of java command should be placed before the class name:

java -cp .;activemq-all-5.3.2.jar consumer1

Otherwise it's treated as an argument of your main method, not as java's argument. Also note that if you specify classpath with -cp option, you need to include the current directory in order to run .class files from it.

axtavt 2010-10-15 15:26:04

I did the -cp option before the class name before. The only difference this time is that I added this ".;" what does that mean? To include in the classpath everything in the current folder? I don't understand why I need to do that when there are no dependencies in the current folder.

Jeune 2010-10-15 15:35:47

@Jeune: When you run `java consumer1`, `consumer1` is a name of class in the classpath. By default classpath is a current directory, so this command will run `consumer1.class` from it. When you use `-cp` option, you override the default classpath, so you need to specify the current folder explicitly in order to run `consumer1.class` from it.

axtavt 2010-10-15 15:41:42

@axtavt thanks! that cleared things a lot! :) +1

Jeune 2010-10-16 05:27:07

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