java.lang.NoClassDefFoundError: oracle/jdbc/driver/OracleStatement

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java.lang.NoClassDefFoundError: oracle/jdbc/driver/OracleStatement
at java.lang.Class.getMethods0(Native Method)
at java.lang.Class.getMethods(Class.java:737)
at weblogic.rmi.utils.Utilities.getRemoteMethods(Utilities.java:382)
at weblogic.rmi.internal.StubGenerator.(StubGenerator.java:79)
at weblogic.rmi.internal.StubGenerator.(StubGenerator.java:60)
at weblogic.rmi.internal.StubGenerator.getStubClass(StubGenerator.java:637)
at weblogic.rmi.internal.StubGenerator.generateStub(StubGenerator.java:656)
at weblogic.rmi.internal.StubGenerator.generateStub(StubGenerator.java:651)
at weblogic.rmi.extensions.StubFactory.getStub(StubFactory.java:59)
at weblogic.common.internal.RemoteObjectReplacer.resolveObject(RemoteObjectReplacer.java:249)
at weblogic.rmi.internal.StubInfo.readResolve(StubInfo.java:134)
at java.lang.reflect.Method.invoke(Native Method)
at java.io.ObjectStreamClass.invokeMethod(ObjectStreamClass.java:1610)
at java.io.ObjectInputStream.readObject(ObjectInputStream.java:388)
at java.io.ObjectInputStream.inputClassFields(ObjectInputStream.java:2258)
at java.io.ObjectInputStream.defaultReadObject(ObjectInputStream.java:514)
at java.io.ObjectInputStream.inputObject(ObjectInputStream.java:1407)
at java.io.ObjectInputStream.readObject(ObjectInputStream.java:381)
at java.io.ObjectInputStream.readObject(ObjectInputStream.java:231)
at weblogic.common.internal.ChunkedObjectInputStream.readObject(ChunkedObjectInputStream.java:140)
at weblogic.rjvm.MsgAbbrevInputStream.readObject(MsgAbbrevInputStream.java:91)
at weblogic.rmi.internal.ObjectIO.readObject(ObjectIO.java:56)
at weblogic.rjvm.ResponseImpl.unmarshalReturn(ResponseImpl.java:161)
at weblogic.rmi.internal.BasicRemoteRef.invoke(BasicRemoteRef.java:128)
at weblogic.jdbc.common.internal.RmiDataSource_WLStub.getConnection(Unknown Source)
at com.actiontech.jmetro.server.core.DBSession.executeQuery(DBSession.java:109)
at com.actiontech.jmetro.server.query.NamespaceMappings.loadMappings(NamespaceMappings.java:76)
at com.actiontech.jmetro.server.query.NamespaceMappings.(NamespaceMappings.java:56)
at com.actiontech.jmetro.server.query.NamespaceMappings.getInstance(NamespaceMappings.java:50)
at com.actiontech.jmetro.server.query.NamespaceMappingsTest.testSave(NamespaceMappingsTest.java:21)
at junit.framework.TestCase.runTest(TestCase.java:154)
at junit.framework.TestCase.runBare(TestCase.java:127)
at junit.framework.TestResult$1.protect(TestResult.java:106)
at junit.framework.TestResult.runProtected(TestResult.java:124)
at junit.framework.TestResult.run(TestResult.java:109)
at junit.framework.TestCase.run(TestCase.java:118)
at junit.framework.TestSuite.runTest(TestSuite.java:208)
at junit.framework.TestSuite.run(TestSuite.java:203)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:360)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run(RemoteTestRunner.java:246)

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