关于loading oracle.sql.BlobDBAccess : Package oracle.sql is sealed.异常

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pe8.1_02|javax.enterprise.system.stream.err|_ThreadID=12;|java.lang.SecurityException: Sealing violation 
loading oracle.sql.BlobDBAccess : Package oracle.sql is sealed. at org.apache.catalina.loader.WebappClassLoader.findClassInternal(WebappClassLoader.java:1764) at org.apache.catalina.loader.WebappClassLoader.findClass(WebappClassLoader.java:905) at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1370) at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1234) at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:319) at java.lang.ClassLoader.defineClass1(Native Method) at java.lang.ClassLoader.defineClass(ClassLoader.java:620) at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:124) at org.apache.catalina.loader.WebappClassLoader.findClassInternal(WebappClassLoader.java:1774) at org.apache.catalina.loader.WebappClassLoader.findClass(WebappClassLoader.java:905) at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1370) at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1234) at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:319) at oracle.jdbc.driver.T4CDriverExtension.getConnection(T4CDriverExtension.java:35) at oracle.jdbc.driver.OracleDriver.connect(OracleDriver.java:801) at java.sql.DriverManager.getConnection(DriverManager.java:582) at java.sql.DriverManager.getConnection(DriverManager.java:185) at com.ibatis.common.jdbc.SimpleDataSource.popConnection(SimpleDataSource.java:580) at com.ibatis.common.jdbc.SimpleDataSource.getConnection(SimpleDataSource.java:222) at com.ibatis.sqlmap.engine.transaction.jdbc.JdbcTransaction.init(JdbcTransaction.java:48) at com.ibatis.sqlmap.engine.transaction.jdbc.JdbcTransaction.getConnection(JdbcTransaction.java:89) at com.ibatis.sqlmap.engine.mapping.statement.MappedStatement.executeQueryForList(MappedStatement.java:139) at com.ibatis.sqlmap.engine.impl.SqlMapExecutorDelegate.queryForList(SqlMapExecutorDelegate.java:567) at com.ibatis.sqlmap.engine.impl.SqlMapExecutorDelegate.queryForList(SqlMapExecutorDelegate.java:541) at com.ibatis.sqlmap.engine.impl.SqlMapSessionImpl.queryForList(SqlMapSessionImpl.java:118) at com.ibatis.sqlmap.engine.impl.SqlMapClientImpl.queryForList(SqlMapClientImpl.java:94) at com.neusoft.avnc.lbs.stkrttp.db.bussiness.ContentContr.selectContents(ContentContr.java:318) at com.neusoft.avnc.lbs.stkrttp.core.ScanDBBusiness.dbWork(ScanDBBusiness.java:69) at com.neusoft.avnc.lbs.stkrttp.mmo.DbReadMMO.run(DbReadMMO.java:60) at java.lang.Thread.run(Thread.java:619)

今天偶然遇到了这个问题，查了半天原因，在论坛里查了半天都没有收获，结果在sun公司的官方网站上找到了答案。结果原因是oracle 10.2的jar包的作者把文件给seal（封印？）住了，导致类加载器加载不上jar包中的类。解决方案：

1，使用以前版本的jar包，例如10.1
2，把jar包jar包中的MANIFEST文件删掉最后的几行

原来的MANIFEST文件：
Manifest-Version: 1.0 Specification-Title: Oracle JDBC driver classes for use with JDK14 Sealed: true Created-By: 1.4.2_14 (Sun Microsystems Inc.) Implementation-Title: ojdbc14.jar Specification-Vendor: Oracle Corporation Specification-Version: Oracle JDBC Driver version - "10.2.0.4.0" Implementation-Version: Oracle JDBC Driver version - "10.2.0.4.0" Implementation-Vendor: Oracle Corporation Implementation-Time: Sat Feb 2 11:40:29 2008
Name: oracle/sql/converter/ Sealed: false
Name: oracle/sql/ Sealed: false
Name: oracle/sql/converter_xcharset/ Sealed: false
改成：
Manifest-Version: 1.0 Specification-Title: Oracle JDBC driver classes for use with JDK14 Sealed: true Created-By: 1.4.2_14 (Sun Microsystems Inc.) Implementation-Title: ojdbc14.jar Specification-Vendor: Oracle Corporation Specification-Version: Oracle JDBC Driver version - "10.2.0.4.0" Implementation-Version: Oracle JDBC Driver version - "10.2.0.4.0" Implementation-Vendor: Oracle Corporation Implementation-Time: Sat Feb 2 11:40:29 2008

至少我的困难是可以解决了，祝大家好运！

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