Jaspersoft Studio fails to access Spring classes properly

Changed Assigned User from - to @User_306070

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As far as I can see, the problem is, that not all basic spring jars are included into the plugin (for example org.springframework-asm-3.0.5.jar, where the "ClassVisitor" class, which is causing the exception, resides, is not in the distribution package of your plugin). Our custom DataSourceProvider is referencing classes, being already loaded by Jaspersoft-Plugin (like GenericApplicationContext, which seems to be already used by your plugin, but apparently with other constructor) so the plugin class loader is used, and requiered classes are not found.Looking at the code of org.springframework.context.support.GenericApplicationContext we can see two constructors:one is used by Jaspersoft Plugin, which is not requiring any "asm.jar" - classes : public GenericApplicationContext(DefaultListableBeanFactory beanFactory) { Assert.notNull(beanFactory, "BeanFactory must not be null"); this.beanFactory = beanFactory; }And one is used by our code, which requeres classes from asm (so LocalVariableTableParameterNameDiscoverer depends on org.springframework.asm classes) : public GenericApplicationContext() { this.beanFactory = new DefaultListableBeanFactory(); this.beanFactory.setParameterNameDiscoverer(new LocalVariableTableParameterNameDiscoverer()); this.beanFactory.setAutowireCandidateResolver(new QualifierAnnotationAutowireCandidateResolver()); }It seems, that if your code is using spring, it is better to include all basic components into the distribution (I can imagine same problems also with other jars, not just from "asm" package)

Changed Assigned User from @User_306070 to @anonymous

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yes, this is the problem, but we still have not decided, how to best handle this

Thank you for your answer, can we expect some solution in next version ?

Changed Resolution from Open to Fixed

Changed Status from New to Resolved

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I added all spring jars for version 3.0.5, now we don't have any errorit's not necessary to have spring and jr library inside the projectfor JRLibrary go to Java Build Path -> Library, click on Add Library, select JasperReports Library

Thank you !