跪求：java.sql.SQLException: OALL8 处于不一致状态，违反协议，如何解决

大家好：
     小弟最近遇见了该问题，一直没能找到原因，程序是解析文件入库，然后查询数据，计算数据，在多个地方报出该异常，不论是查询、删除还是插入，但不是连续报，大概每过4小时左右集中爆发多次，试过很多方法都不行，包括更换驱动，增大undo，重启应用，重装数据库。，仔细检查SQL和数据库结构，也没看出什么问题，难道是并发线程过多导致？？请各位大侠给给建议，谢谢！！（数据库是ORACLE 版本10.2.0.1.0，驱动ojdbc14 10.2.0.1.0）Caused by: java.sql.SQLException: OALL8 处于不一致状态
at oracle.jdbc.driver.DatabaseError.throwSqlException(DatabaseError.java:111)
at oracle.jdbc.driver.DatabaseError.throwSqlException(DatabaseError.java:145)
at oracle.jdbc.driver.DatabaseError.throwSqlException(DatabaseError.java:207)
at oracle.jdbc.driver.T4C8Oall.marshal(T4C8Oall.java:351)
at oracle.jdbc.driver.T4CPreparedStatement.doOall8(T4CPreparedStatement.java:201)
at oracle.jdbc.driver.T4CPreparedStatement.executeForDescribe(T4CPreparedStatement.java:798)
at oracle.jdbc.driver.OracleStatement.executeMaybeDescribe(OracleStatement.java:1038)
at oracle.jdbc.driver.T4CPreparedStatement.executeMaybeDescribe(T4CPreparedStatement.java:838)
at oracle.jdbc.driver.OracleStatement.doExecuteWithTimeout(OracleStatement.java:1131)
at oracle.jdbc.driver.OraclePreparedStatement.executeInternal(OraclePreparedStatement.java:3284)
at oracle.jdbc.driver.OraclePreparedStatement.executeQuery(OraclePreparedStatement.java:3328)
at org.apache.commons.dbcp.DelegatingPreparedStatement.executeQuery(DelegatingPreparedStatement.java:93) Caused by: java.sql.SQLException: 违反协议
at oracle.jdbc.driver.DatabaseError.throwSqlException(DatabaseError.java:111)
at oracle.jdbc.driver.DatabaseError.throwSqlException(DatabaseError.java:145)
at oracle.jdbc.driver.DatabaseError.throwSqlException(DatabaseError.java:207)
at oracle.jdbc.driver.T4C8Oall.receive(T4C8Oall.java:763)
at oracle.jdbc.driver.T4CPreparedStatement.doOall8(T4CPreparedStatement.java:215)
at oracle.jdbc.driver.T4CPreparedStatement.executeForDescribe(T4CPreparedStatement.java:798)
at oracle.jdbc.driver.OracleStatement.executeMaybeDescribe(OracleStatement.java:1038)
at oracle.jdbc.driver.T4CPreparedStatement.executeMaybeDescribe(T4CPreparedStatement.java:838)
at oracle.jdbc.driver.OracleStatement.doExecuteWithTimeout(OracleStatement.java:1131)
at oracle.jdbc.driver.OraclePreparedStatement.executeInternal(OraclePreparedStatement.java:3284)
at oracle.jdbc.driver.OraclePreparedStatement.executeQuery(OraclePreparedStatement.java:3328)
at org.apache.commons.dbcp.DelegatingPreparedStatement.executeQuery(DelegatingPreparedStatement.java:93)