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Re: Entity Modeler SQL generation exception
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Re: Entity Modeler SQL generation exception

  • Subject: Re: Entity Modeler SQL generation exception
  • From: Samuel Pelletier <email@hidden>
  • Date: Thu, 07 May 2015 11:33:09 -0400
I also get the same error. I modified a plugin.xml file that seemed incorrect and now I have this one:

java.lang.ClassCastException: org.objectstyle.wolips.eomodeler.core.sql.EOFSQLGeneratorFactory cannot be cast to org.objectstyle.wolips.eomodeler.core.sql.IEOSQLGeneratorFactory
at org.objectstyle.wolips.eomodeler.core.sql.IEOSQLGeneratorFactory$Utility.sqlGeneratorFactory(IEOSQLGeneratorFactory.java:29)
at org.objectstyle.wolips.eomodeler.actions.GenerateSQLDialog.generateSql(GenerateSQLDialog.java:297)
at org.objectstyle.wolips.eomodeler.actions.GenerateSQLDialog$1.run(GenerateSQLDialog.java:279)
at java.lang.Thread.run(Thread.java:745)

I do not understand how it is possible; EOFSQLGeneratorFactory implements IEOSQLGeneratorFactory !

public class EOFSQLGeneratorFactory implements IEOSQLGeneratorFactory {
...
}

Ângelo Andrade Cirino posted this on April 29, I think there is something here, some sort or dependency or class path missing during the plugin execution.


Some more light on the issue. This is the first time I debug WOLips and I have never attempted to change the code. That said, when debugging Entity Modeler I was able to locate this exception thrown just before the exception I originally reported was thrown:

org.eclipse.core.runtime.CoreException: Plug-in org.objectstyle.wolips.eomodeler.eclipse was unable to load class org.objectstyle.wolips.eomodeler.core.sql.EOFSQLGeneratorFactory.

!ENTRY at org.eclipse.core.internal.registry.osgi.RegistryStrategyOSGI.throwException(RegistryStrategyOSGI.java:194)
at org.eclipse.core.internal.registry.osgi.RegistryStrategyOSGI.createExecutableExtension(RegistryStrategyOSGI.java:176)
at org.eclipse.core.internal.registry.ExtensionRegistry.createExecutableExtension(ExtensionRegistry.java:905)
at org.eclipse.core.internal.registry.ConfigurationElement.createExecutableExtension(ConfigurationElement.java:243)
at org.eclipse.core.internal.registry.ConfigurationElementHandle.createExecutableExtension(ConfigurationElementHandle.java:55)
at org.objectstyle.wolips.eomodeler.core.sql.IEOSQLGeneratorFactory$Utility.sqlGeneratorFactory(IEOSQLGeneratorFactory.java:29)
at org.objectstyle.wolips.eomodeler.actions.GenerateSQLDialog.generateSql(GenerateSQLDialog.java:297)
at org.objectstyle.wolips.eomodeler.actions.GenerateSQLDialog$1.run(GenerateSQLDialog.java:279)
at java.lang.Thread.run(Thread.java:745)
Caused by: java.lang.ClassNotFoundException: org.objectstyle.wolips.eomodeler.core.sql.EOFSQLGeneratorFactory cannot be found by org.objectstyle.wolips.eomodeler.eclipse_1.0.6
at org.eclipse.osgi.internal.loader.BundleLoader.findClassInternal(BundleLoader.java:432)
at org.eclipse.osgi.internal.loader.BundleLoader.findClass(BundleLoader.java:345)
at org.eclipse.osgi.internal.loader.BundleLoader.findClass(BundleLoader.java:337)
at org.eclipse.osgi.internal.loader.ModuleClassLoader.loadClass(ModuleClassLoader.java:160)
at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
at org.eclipse.osgi.internal.framework.EquinoxBundle.loadClass(EquinoxBundle.java:568)
at org.eclipse.core.internal.registry.osgi.RegistryStrategyOSGI.createExecutableExtension(RegistryStrategyOSGI.java:174)
... 7 more
 org.objectstyle.wolips.eomodeler.core.ActivatorResources 4 4 2015-04-29 21:13:07.546
!MESSAGE Could not create SQL generator factory from configuration element: org.eclipse.core.internal.registry.ConfigurationElementHandle@7b77
!STACK 1
org.eclipse.core.runtime.CoreException: Plug-in org.objectstyle.wolips.eomodeler.eclipse was unable to load class org.objectstyle.wolips.eomodeler.core.sql.EOFSQLGeneratorFactory.
at org.eclipse.core.internal.registry.osgi.RegistryStrategyOSGI.throwException(RegistryStrategyOSGI.java:194)
at org.eclipse.core.internal.registry.osgi.RegistryStrategyOSGI.createExecutableExtension(RegistryStrategyOSGI.java:176)
at org.eclipse.core.internal.registry.ExtensionRegistry.createExecutableExtension(ExtensionRegistry.java:905)
at org.eclipse.core.internal.registry.ConfigurationElement.createExecutableExtension(ConfigurationElement.java:243)
at org.eclipse.core.internal.registry.ConfigurationElementHandle.createExecutableExtension(ConfigurationElementHandle.java:55)
at org.objectstyle.wolips.eomodeler.core.sql.IEOSQLGeneratorFactory$Utility.sqlGeneratorFactory(IEOSQLGeneratorFactory.java:29)
at org.objectstyle.wolips.eomodeler.actions.GenerateSQLDialog.generateSql(GenerateSQLDialog.java:297)
at org.objectstyle.wolips.eomodeler.actions.GenerateSQLDialog$1.run(GenerateSQLDialog.java:279)
at java.lang.Thread.run(Thread.java:745)
Caused by: java.lang.ClassNotFoundException: org.objectstyle.wolips.eomodeler.core.sql.EOFSQLGeneratorFactory cannot be found by org.objectstyle.wolips.eomodeler.eclipse_1.0.6
at org.eclipse.osgi.internal.loader.BundleLoader.findClassInternal(BundleLoader.java:432)
at org.eclipse.osgi.internal.loader.BundleLoader.findClass(BundleLoader.java:345)
at org.eclipse.osgi.internal.loader.BundleLoader.findClass(BundleLoader.java:337)
at org.eclipse.osgi.internal.loader.ModuleClassLoader.loadClass(ModuleClassLoader.java:160)
at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
at org.eclipse.osgi.internal.framework.EquinoxBundle.loadClass(EquinoxBundle.java:568)
at org.eclipse.core.internal.registry.osgi.RegistryStrategyOSGI.createExecutableExtension(RegistryStrategyOSGI.java:174)
... 7 more
!SUBENTRY 1 org.eclipse.equinox.registry 4 1 2015-04-29 21:13:07.546
!MESSAGE Plug-in org.objectstyle.wolips.eomodeler.eclipse was unable to load class org.objectstyle.wolips.eomodeler.core.sql.EOFSQLGeneratorFactory.
!STACK 0
java.lang.ClassNotFoundException: org.objectstyle.wolips.eomodeler.core.sql.EOFSQLGeneratorFactory cannot be found by org.objectstyle.wolips.eomodeler.eclipse_1.0.6
at org.eclipse.osgi.internal.loader.BundleLoader.findClassInternal(BundleLoader.java:432)
at org.eclipse.osgi.internal.loader.BundleLoader.findClass(BundleLoader.java:345)
at org.eclipse.osgi.internal.loader.BundleLoader.findClass(BundleLoader.java:337)
at org.eclipse.osgi.internal.loader.ModuleClassLoader.loadClass(ModuleClassLoader.java:160)
at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
at org.eclipse.osgi.internal.framework.EquinoxBundle.loadClass(EquinoxBundle.java:568)
at org.eclipse.core.internal.registry.osgi.RegistryStrategyOSGI.createExecutableExtension(RegistryStrategyOSGI.java:174)
at org.eclipse.core.internal.registry.ExtensionRegistry.createExecutableExtension(ExtensionRegistry.java:905)
at org.eclipse.core.internal.registry.ConfigurationElement.createExecutableExtension(ConfigurationElement.java:243)
at org.eclipse.core.internal.registry.ConfigurationElementHandle.createExecutableExtension(ConfigurationElementHandle.java:55)
at org.objectstyle.wolips.eomodeler.core.sql.IEOSQLGeneratorFactory$Utility.sqlGeneratorFactory(IEOSQLGeneratorFactory.java:29)
at org.objectstyle.wolips.eomodeler.actions.GenerateSQLDialog.generateSql(GenerateSQLDialog.java:297)
at org.objectstyle.wolips.eomodeler.actions.GenerateSQLDialog$1.run(GenerateSQLDialog.java:279)
at java.lang.Thread.run(Thread.java:745)

The problem is that the org.objectstyle.wolips.eomodeler.core.sql.EOFSQLGeneratorFactory class isn’t loaded.


The patch I applied:

+++ b/wolips/core/plugins/org.objectstyle.wolips.eomodeler.eclipse/plugin.xml
@@ -16,10 +16,13 @@
          name="Eclipse EOClassLoader Factory"
          point="org.objectstyle.wolips.eomodeler.eoclassLoaderFactory">
       <eoclassLoaderFactory
-            class="org.objectstyle.wolips.eomodeler.eclipse.EclipseEOModelGroupFactory"
-            id="org.objectstyle.wolips.eomodeler.eclipse.eoclassLoaderFactory"
-            name="Eclipse EOClassLoader Factory">
-      </eoclassLoaderFactory>
+            class="org.objectstyle.wolips.eomodeler.factories.SimpleManifestEOClassLoaderFactory"
+            id="entitymodeler.SimpleManifestEOClassLoaderFactory"
+            name="Simple Manifest EOClassLoader Factory"/>
+      <eoclassLoaderFactory
+            class="org.objectstyle.wolips.eomodeler.factories.IDEAProjectEOClassLoaderFactory"
+            id="entitymodeler.IDEAProjectEOClassLoaderFactory"
+            name="IDEA Project EOClassLoader Factory"/>
    </extension>
    <extension
          point="org.eclipse.ui.startup">


Samuel


Le 2015-05-05 à 12:05, Ângelo Andrade Cirino <email@hidden> a écrit :

This is the exception I got when debugging WOLips 4.4

java.lang.ClassCastException: org.objectstyle.wolips.eomodeler.eclipse.EclipseEOModelGroupFactory cannot be cast to org.objectstyle.wolips.eomodeler.core.model.IEOClassLoaderFactory
at org.objectstyle.wolips.eomodeler.core.model.IEOClassLoaderFactory$Utility.createClassLoader(IEOClassLoaderFactory.java:39)
at org.objectstyle.wolips.eomodeler.actions.GenerateSQLDialog.getEOModelClassLoader(GenerateSQLDialog.java:257)
at org.objectstyle.wolips.eomodeler.actions.GenerateSQLDialog.generateSql(GenerateSQLDialog.java:297)
at org.objectstyle.wolips.eomodeler.actions.GenerateSQLDialog$1.run(GenerateSQLDialog.java:279)
at java.lang.Thread.run(Thread.java:745)

This issue is beyond my little knowledge of WOLips.

Angelo

________________
Ângelo Andrade Cirino
email@hidden

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