历时一天，查尽了国内外所有文档，终于把错误搞定了 jackrabbit and oracle

在csdn也发了几贴，可是会的人寥寥无几。。

最后在一篇email中发现了解决办法

java.io.IOException: ORA-22993: specified input amount is greater than
actual source amount
at oracle.jdbc.dbaccess.DBError.SQLToIOException(DBError.java:716)
at oracle.jdbc.driver.OracleBlobOutputStream.flushBuffer(OracleBlobOutputStream.java:279)
[...]

according to some reports found through google, this seems to be a
jdbc driver version issue.
you're using

Driver: Oracle JDBC driver / 9.2.0.1.0

your server is

Database: Oracle / Oracle Database 10g Enterprise Edition Release
10.1.0.2.0 - [...]

Hi stefan
thank you very much , I have changed my local oracle jdbc jar to
10.2.0.3.0 version. The problem before have be resovled,my application
can start and jackrabbit can be initialized now .

原来是oracle9的class12与jackrabbit有冲突。成功解决问题了

配置文件：

<?xml version="1.0" encoding="ISO-8859-1"?>
<Repository>
    <FileSystem
        class="org.apache.jackrabbit.core.fs.local.LocalFileSystem">
        <param name="path" value="${rep.home}/repository" />
    </FileSystem>

    <Security appName="Jackrabbit">
        <AccessManager
            class="org.apache.jackrabbit.core.security.SimpleAccessManager">
        </AccessManager>

        <LoginModule
            class="org.apache.jackrabbit.core.security.SimpleLoginModule">
        </LoginModule>
    </Security>

    <Workspaces rootPath="${rep.home}/workspaces"
        defaultWorkspace="default" />
    <Workspace name="${wsp.name}">
        <FileSystem
            class="org.apache.jackrabbit.core.fs.local.LocalFileSystem">
            <param name="path" value="${wsp.home}" />
        </FileSystem>

        <PersistenceManager
            class="org.apache.jackrabbit.core.state.db.OraclePersistenceManager">
            <param name="url"
                value="jdbc:oracle:thin:@192.168.3.66:1521:whddb" />
            <param name="user" value="whd" />
            <param name="password" value="whd2009" />
            <param name="schemaObjectPrefix" value="${wsp.name}_" />
            <param name="externalBLOBs" value="false" />
        </PersistenceManager>

        <SearchIndex
            class="org.apache.jackrabbit.core.query.lucene.SearchIndex">
            <param name="path" value="${wsp.home}/index" />
        </SearchIndex>
    </Workspace>

    <Versioning rootPath="${rep.home}/version">
        <FileSystem
            class="org.apache.jackrabbit.core.fs.local.LocalFileSystem">
            <param name="path" value="${rep.home}/version" />
        </FileSystem>

        <PersistenceManager
            class="org.apache.jackrabbit.core.state.db.OraclePersistenceManager">
            <param name="url"
                value="jdbc:oracle:thin:@192.168.3.66:1521:whddb" />
            <param name="user" value="whd" />
            <param name="password" value="whd2009" />
            <param name="schemaObjectPrefix" value="version_" />
            <param name="externalBLOBs" value="false" />
        </PersistenceManager>
    </Versioning>

    <SearchIndex
        class="org.apache.jackrabbit.core.query.lucene.SearchIndex">
        <param name="path" value="${rep.home}/repository/index" />
    </SearchIndex>

</Repository>