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From "Kathey Marsden (JIRA)" <j...@apache.org>
Subject [jira] Commented: (DERBY-2782) 10.2 client Stream.java test fails when run against 10.3 with Java exception: 'Reversed byte-order mark: sun.io.MalformedInputException'.
Date Fri, 08 Jun 2007 16:17:25 GMT

    [ https://issues.apache.org/jira/browse/DERBY-2782?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#action_12502863
] 

Kathey Marsden commented on DERBY-2782:
---------------------------------------

I am not sure what changed in 10.3, but I question if the test has valid input.
Here is the read method for the stream.  I am not sure that this would always be a valid character.
 The new test StreamTest uses real characters instead of this cast.
Does anyone have thoughts on whether cbuf[i] = (char) (wroteLength % 0x10000L) always represents
a valid character?


public int read( char[] cbuf,
			 int off,
			 int len ){
	    
	    if(wroteLength >= total)
		return -1;
	    
	    int i;
	    for(i = off ;
		i < off + len &&
		    wroteLength < total ;
		i++, wroteLength ++){
		
		cbuf[i] = (char) (wroteLength % 0x10000L);
		
	    }

	    return i - off;
	}

> 10.2 client Stream.java test fails when run against 10.3 with  Java exception: 'Reversed
byte-order mark: sun.io.MalformedInputException'.
> ------------------------------------------------------------------------------------------------------------------------------------------
>
>                 Key: DERBY-2782
>                 URL: https://issues.apache.org/jira/browse/DERBY-2782
>             Project: Derby
>          Issue Type: Bug
>    Affects Versions: 10.3.0.0
>            Reporter: Kathey Marsden
>
> The jdbcapi/Stream.java test run with client and 10.2.1.6 derbyTesting.jar  and 10.3
product jars fails with 
>  Java exception: 'Reversed byte-order mark: sun.io.MalformedInputException'.
>  
> java.sql.SQLException: An unexpected exception was thrown
> 	at org.apache.derby.client.am.SQLExceptionFactory.getSQLException(SQLExceptionFactory.java:46)
> 	at org.apache.derby.client.am.SqlException.getSQLException(SqlException.java:362)
> 	at org.apache.derby.client.am.PreparedStatement.executeUpdate(PreparedStatement.java:391)
> 	at org.apache.derbyTesting.functionTests.tests.jdbcapi.Stream.createLargeClobTestData(Unknown
Source)
> 	at org.apache.derbyTesting.functionTests.tests.jdbcapi.Stream.createTestData(Unknown
Source)
> 	at org.apache.derbyTesting.functionTests.tests.jdbcapi.Stream.createTestTables(Unknown
Source)
> 	at org.apache.derbyTesting.functionTests.tests.jdbcapi.Stream.main(Unknown Source)
> Caused by: org.apache.derby.client.am.SqlException: An unexpected exception was thrown
> 	at org.apache.derby.client.am.Statement.completeExecute(Statement.java:1498)
> 	at org.apache.derby.client.net.NetStatementReply.parseEXCSQLSTTreply(NetStatementReply.java:304)
> 	at org.apache.derby.client.net.NetStatementReply.readExecute(NetStatementReply.java:70)
> 	at org.apache.derby.client.net.StatementReply.readExecute(StatementReply.java:55)
> 	at org.apache.derby.client.net.NetPreparedStatement.readExecute_(NetPreparedStatement.java:183)
> 	at org.apache.derby.client.am.PreparedStatement.readExecute(PreparedStatement.java:1795)
> 	at org.apache.derby.client.am.PreparedStatement.flowExecute(PreparedStatement.java:2115)
> 	at org.apache.derby.client.am.PreparedStatement.executeUpdateX(PreparedStatement.java:396)
> 	at org.apache.derby.client.am.PreparedStatement.executeUpdate(PreparedStatement.java:382)
> 	... 4 more
> Caused by: org.apache.derby.client.am.SqlException: Java exception: 'Reversed byte-order
mark: sun.io.MalformedInputException'.
> 	at org.apache.derby.client.am.SqlException.<init>(SqlException.java:290)
> 	at org.apache.derby.client.am.SqlException.<init>(SqlException.java:264)
> 	... 13 more

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