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Similar to closed bug 233416. Reproduced on 7.4 RC1 and nightly build netbeans-trunk-nightly-201309260002-linux. 1) Fresh install of Netbeans. 2) File / New Project / Maven / Java Application. 3) Run. See "Hello World" ok. 4) Right-click on project name in Project navigator, "New / Groovy Class". 5) Define one method in Groovy class as follows: def doit() { println "Groovy!!" } 6) Modify Java main as follows: public static void main( String[] args ) { System.out.println( "Hello World!" ); GroovyClass g; g = new GroovyClass(); g.doit(); } 7) Makre sure everything is saved. Editors are happy. Compiler is happy. 8) Run. Java class successfully prints "Hello World" then blows up with ClassNotFound when Groovy method is invoked. Hello World! Exception in thread "main" java.lang.NoClassDefFoundError: com/mycompany/mavenproject1/GroovyClass at com.mycompany.mavenproject1.App.main(App.java:13) Caused by: java.lang.ClassNotFoundException: com.mycompany.mavenproject1.GroovyClass at java.net.URLClassLoader$1.run(URLClassLoader.java:366) at java.net.URLClassLoader$1.run(URLClassLoader.java:355) at java.security.AccessController.doPrivileged(Native Method) at java.net.URLClassLoader.findClass(URLClassLoader.java:354) at java.lang.ClassLoader.loadClass(ClassLoader.java:424) at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:308) at java.lang.ClassLoader.loadClass(ClassLoader.java:357) ... 1 more ------------------------------------------------------------------------ BUILD FAILURE 9) Noticed that no class files exist in the project for the Groovy classes. So, groovy didn't get compiled and it's not using the source groovy file either at runtime.
It looks that you don't have correctly setup your pom.xml to compile Groovy sources together with Java sources. It should be done automatically in case if you have IDE installed with Groovy bundle but in case you have pure Java bundle for example, it is possible it does not get updated. Could you please share your project? Or at least show me the content of your pom.xml? Thanks in advance
Closing as incomplete until information asked in comment 1 will be provided. Thanks.
I have a similar problem with NB 8.1 on linux, maven 3.3.9 NetBeans maven-groovy project with the error message "Error: Could not find or load main class XXX" After maven clean/build the target classes folder looks like ls -l target/classes/ total 24 -rw-rw-r-- 1 tkruse tkruse 5261 Jan 17 11:13 FullCrawl.class -rw-rw-r-- 1 tkruse tkruse 2788 Jan 17 11:13 FullCrawl$_crawlPosts_closure1.class -rw-rw-r-- 1 tkruse tkruse 4172 Jan 17 11:13 FullCrawl$_crawlPosts_closure1$_closure3.class -rw-rw-r-- 1 tkruse tkruse 2305 Jan 17 11:13 FullCrawl$_main_closure2.class and excution works. After a change in the groovy file and saving in NetBeans ls -l target/classes/ total 16 -rw-rw-r-- 1 tkruse tkruse 2788 Jan 17 11:13 FullCrawl$_crawlPosts_closure1.class -rw-rw-r-- 1 tkruse tkruse 4172 Jan 17 11:13 FullCrawl$_crawlPosts_closure1$_closure3.class -rw-rw-r-- 1 tkruse tkruse 2305 Jan 17 11:13 FullCrawl$_main_closure2.class and execution is broken. When doing a mvn clean and then run-file in NB it works for one execution. If I disable compile on save for the project it works for every execution.
Marking as duplicate of #256367: The Compile On Save feature is not handling the compilation of groovy classes in maven projects correctly. *** This bug has been marked as a duplicate of bug 256367 ***