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java.lang.IllegalStateException: zip file closed	at java.util.zip.ZipFile.ensureOpen(ZipFile.java:415)	at java.util.zip.ZipFile.getEntry(ZipFile.java:160)	at java.util.jar.JarFile.getEntry(JarFile.java:208)	at java.util.jar.JarFile.getJarEntry(JarFile.java:191)	at sun.misc.URLClassPath$JarLoader.getResource(URLClassPath.java:757)	at sun.misc.URLClassPath.getResource(URLClassPath.java:169)	at java.net.URLClassLoader$1.run(URLClassLoader.java:194)	at java.security.AccessController.doPrivileged(Native Method)	at java.net.URLClassLoader.findClass(URLClassLoader.java:190)	at org.jboss.tools.hibernate4_0.HibernateExtension4_0$5$1.findClass(HibernateExtension4_0.java:167)	at java.lang.ClassLoader.loadClass(ClassLoader.java:306)	at org.jboss.tools.hibernate4_0.HibernateExtension4_0$5$1.loadClass(HibernateExtension4_0.java:178)	at java.lang.ClassLoader.loadClass(ClassLoader.java:247)	at org.jboss.tools.hibernate4_0.HibernateExtension4_0$5$1.loadClass(HibernateExtension4_0.java:186)	at org.hsqldb.jdbcDriver.getConnection(Unknown Source)	at org.hsqldb.jdbcDriver.connect(Unknown Source)	at org.jboss.tools.hibernate4_0.FakeDelegatingDriver.connect(FakeDelegatingDriver.java:42)	at java.sql.DriverManager.getConnection(DriverManager.java:582)	at java.sql.DriverManager.getConnection(DriverManager.java:154)	at org.hibernate.service.jdbc.connections.internal.DriverManagerConnectionProviderImpl.getConnection(DriverManagerConnectionProviderImpl.java:173)	at org.hibernate.cfg.reveng.dialect.AbstractMetaDataDialect.getConnection(AbstractMetaDataDialect.java:121)	at org.hibernate.cfg.reveng.dialect.AbstractMetaDataDialect.getMetaData(AbstractMetaDataDialect.java:60)	at org.hibernate.cfg.reveng.dialect.AbstractMetaDataDialect.caseForSearch(AbstractMetaDataDialect.java:163)	at org.hibernate.cfg.reveng.dialect.JDBCMetaDataDialect.getTables(JDBCMetaDataDialect.java:22)	at org.hibernate.cfg.reveng.JDBCReader.processTables(JDBCReader.java:476)	at org.hibernate.cfg.reveng.JDBCReader.readDatabaseSchema(JDBCReader.java:74)	at org.hibernate.cfg.reveng.JDBCReader.readDatabaseSchema(JDBCReader.java:860)	at org.hibernate.cfg.JDBCBinder.readDatabaseSchema(JDBCBinder.java:124)	at org.hibernate.cfg.JDBCBinder.readFromDatabase(JDBCBinder.java:92)	at org.hibernate.cfg.JDBCMetaDataConfiguration.readFromJDBC(JDBCMetaDataConfiguration.java:75)	at org.jboss.tools.hibernate4_0.console.ConsoleExtension4_0$3.execute(ConsoleExtension4_0.java:269)	at org.hibernate.console.execution.DefaultExecutionContext.execute(DefaultExecutionContext.java:63)	at org.jboss.tools.hibernate4_0.HibernateExtension4_0.execute(HibernateExtension4_0.java:211)	at org.jboss.tools.hibernate4_0.console.ConsoleExtension4_0.buildConfiguration(ConsoleExtension4_0.java:237)	at org.jboss.tools.hibernate4_0.console.ConsoleExtension4_0.runExporters(ConsoleExtension4_0.java:167)	at org.jboss.tools.hibernate4_0.console.ConsoleExtension4_0.launchExporters(ConsoleExtension4_0.java:126)	at org.hibernate.eclipse.launch.CodeGenerationLaunchDelegate.launch(CodeGenerationLaunchDelegate.java:270)	at org.eclipse.debug.internal.core.LaunchConfiguration.launch(LaunchConfiguration.java:854)	at org.eclipse.debug.internal.core.LaunchConfiguration.launch(LaunchConfiguration.java:703)	at org.eclipse.debug.internal.core.LaunchConfiguration.launch(LaunchConfiguration.java:696)	at org.jboss.tools.hibernate.jpt.ui.wizard.GenerateEntitiesWizard.performFinish(GenerateEntitiesWizard.java:74)	at org.eclipse.jface.wizard.WizardDialog.finishPressed(WizardDialog.java:827)	at org.eclipse.jface.wizard.WizardDialog.buttonPressed(WizardDialog.java:432)	at org.eclipse.jface.dialogs.Dialog$2.widgetSelected(Dialog.java:624)	at org.eclipse.swt.widgets.TypedListener.handleEvent(TypedListener.java:240)	at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:84)	at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1258)	at org.eclipse.swt.widgets.Display.runDeferredEvents(Display.java:3588)	at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3209)	at org.eclipse.jface.window.Window.runEventLoop(Window.java:825)	at org.eclipse.jface.window.Window.open(Window.java:801)	at org.jboss.tools.hibernate.jpt.ui.internal.platform.HibernateJpaPlatformUi.generateEntities(HibernateJpaPlatformUi.java:56)	at org.eclipse.jpt.jpa.ui.internal.actions.GenerateEntitiesAction.execute(GenerateEntitiesAction.java:24)	at org.eclipse.jpt.jpa.ui.internal.actions.ProjectAction.execute(ProjectAction.java:87)	at org.eclipse.jpt.jpa.ui.internal.actions.ProjectAction.execute(ProjectAction.java:63)	at org.eclipse.jpt.jpa.ui.internal.actions.ProjectAction.run(ProjectAction.java:55)	at org.eclipse.ui.internal.PluginAction.runWithEvent(PluginAction.java:251)	at org.eclipse.jface.action.ActionContributionItem.handleWidgetSelection(ActionContributionItem.java:584)	at org.eclipse.jface.action.ActionContributionItem.access$2(ActionContributionItem.java:501)	at org.eclipse.jface.action.ActionContributionItem$5.handleEvent(ActionContributionItem.java:411)	at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:84)	at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1258)	at org.eclipse.swt.widgets.Display.runDeferredEvents(Display.java:3588)	at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3209)	at org.eclipse.ui.internal.Workbench.runEventLoop(Workbench.java:2701)	at org.eclipse.ui.internal.Workbench.runUI(Workbench.java:2665)	at org.eclipse.ui.internal.Workbench.access$4(Workbench.java:2499)	at org.eclipse.ui.internal.Workbench$7.run(Workbench.java:679)	at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:332)	at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:668)	at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:149)	at org.eclipse.ui.internal.ide.application.IDEApplication.start(IDEApplication.java:123)	at org.eclipse.equinox.internal.app.EclipseAppHandle.run(EclipseAppHandle.java:196)	at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.runApplication(EclipseAppLauncher.java:110)	at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.start(EclipseAppLauncher.java:79)	at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:344)	at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:179)	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)	at java.lang.reflect.Method.invoke(Method.java:597)	at org.eclipse.equinox.launcher.Main.invokeFramework(Main.java:622)	at org.eclipse.equinox.launcher.Main.basicRun(Main.java:577)	at org.eclipse.equinox.launcher.Main.run(Main.java:1410)	at org.eclipse.equinox.launcher.Main.main(Main.java:1386)