Firebird Embedded Server

Estou tentando abrir conexao com um Firebird via embeded, mais não ta acontecendo… o .dll ja esta na biblioteca, so que não rola =/ … não sei o q é

a String que estou usando é

“jdbc:firebirdsql:embedded:/c:/banco/firebird.gdb”

o que devo fazer ?

java.lang.NoClassDefFoundError: Could not initialize class org.firebirdsql.gds.impl.jni.EmbeddedGDSImpl at org.firebirdsql.gds.impl.jni.EmbeddedGDSFactoryPlugin.getGDS(EmbeddedGDSFactoryPlugin.java:40) at org.firebirdsql.gds.impl.GDSFactory.getGDSForType(GDSFactory.java:219) at org.firebirdsql.jca.FBManagedConnectionFactory.getGDS(FBManagedConnectionFactory.java:117) at org.firebirdsql.jdbc.FBDriver.connect(FBDriver.java:125) at org.hibernate.console.FakeDelegatingDriver.connect(FakeDelegatingDriver.java:40) at java.sql.DriverManager.getConnection(Unknown Source) at java.sql.DriverManager.getConnection(Unknown Source) at org.hibernate.connection.DriverManagerConnectionProvider.getConnection(DriverManagerConnectionProvider.java:110) at org.hibernate.cfg.reveng.dialect.AbstractMetaDataDialect.getConnection(AbstractMetaDataDialect.java:122) at org.hibernate.cfg.reveng.dialect.AbstractMetaDataDialect.getMetaData(AbstractMetaDataDialect.java:61) 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.eclipse.console.workbench.LazyDatabaseSchemaWorkbenchAdapter$2.execute(LazyDatabaseSchemaWorkbenchAdapter.java:114) at org.hibernate.console.execution.DefaultExecutionContext.execute(DefaultExecutionContext.java:64) at org.hibernate.eclipse.console.workbench.LazyDatabaseSchemaWorkbenchAdapter.readDatabaseSchema(LazyDatabaseSchemaWorkbenchAdapter.java:105) at org.hibernate.eclipse.console.workbench.LazyDatabaseSchemaWorkbenchAdapter.getChildren(LazyDatabaseSchemaWorkbenchAdapter.java:61) at org.hibernate.eclipse.console.workbench.BasicWorkbenchAdapter.fetchDeferredChildren(BasicWorkbenchAdapter.java:105) at org.eclipse.ui.progress.DeferredTreeContentManager$1.run(DeferredTreeContentManager.java:234) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55)