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Caused by: java.lang.NullPointerException
        at ognl.ObjectPropertyAccessor.getProperty(ObjectPropertyAccessor.java:120)
        at ognl.OgnlRuntime.getProperty(OgnlRuntime.java:1616)
        at ognl.ASTProperty.getValueBody(ASTProperty.java:96)
        at ognl.SimpleNode.evaluateGetValueBody(SimpleNode.java:170)
        at ognl.SimpleNode.getValue(SimpleNode.java:210)
        at ognl.ASTChain.getValueBody(ASTChain.java:109)
        at ognl.SimpleNode.evaluateGetValueBody(SimpleNode.java:170)
        at ognl.SimpleNode.getValue(SimpleNode.java:210)
        at ognl.ASTNotEq.getValueBody(ASTNotEq.java:49)
        at ognl.SimpleNode.evaluateGetValueBody(SimpleNode.java:170)
        at ognl.SimpleNode.getValue(SimpleNode.java:210)
        at ognl.Ognl.getValue(Ognl.java:333)
        at ognl.Ognl.getValue(Ognl.java:413)
        at ognl.Ognl.getValue(Ognl.java:395)
        at org.seasar.framework.util.OgnlUtil.getValue(OgnlUtil.java:46)
        at org.seasar.dao.node.IfNode.accept(IfNode.java:55)
        at org.seasar.dao.node.ContainerNode.accept(ContainerNode.java:34)
        at org.seasar.dao.node.BeginNode.accept(BeginNode.java:32)
        at org.seasar.dao.node.ContainerNode.accept(ContainerNode.java:34)
        at org.seasar.dao.impl.AbstractDynamicCommand.apply(AbstractDynamicCommand.java:66)
        at org.seasar.dao.impl.SelectDynamicCommand.execute(SelectDynamicCommand.java:50)
        at org.seasar.dao.interceptors.S2DaoInterceptor.invoke(S2DaoInterceptor.java:53)
        at org.seasar.dao.pager.PagerS2DaoInterceptorWrapper.invoke(PagerS2DaoInterceptorWrapper.jav
a:71)
        at test.dao.OrderDaoImpl$$EnhancedByS2AOP$$14e45b3$$Met
hodInvocation$$findbyOrderShipNo6.proceed(MethodInvocationClassGenerator.java)
        at org.seasar.framework.aop.interceptors.ThrowsInterceptor.invoke(ThrowsInterceptor.java:64)
        ... 20 more