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https://issues.apache.org/jira/browse/DERBY-5788?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13284674#comment-13284674
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Knut Anders Hatlen commented on DERBY-5788:
-------------------------------------------

I think you're seeing a change in behaviour described by this release note: 
http://db.apache.org/derby/releases/release-10.8.1.2.html#Note%20for%20DERBY-4965

The changes were introduced in order to get Derby to pass the Java EE 
Compatibility Test Suite after support for Boolean columns had been added.
                
> BIT support regression and confusing message in 10.8.2.2: 
> org.apache.derby.client.am.SqlException: Invalid character string format for 
> type BOOLEAN
> ---------------------------------------------------------------------------------------------------------------------------------------------------
>
>                 Key: DERBY-5788
>                 URL: https://issues.apache.org/jira/browse/DERBY-5788
>             Project: Derby
>          Issue Type: Bug
>          Components: JDBC
>    Affects Versions: 10.8.2.2
>         Environment: Windows 7 (All)
>            Reporter: Radoslav Ivanov
>
> Scenario (on 10.8.2.2; with 10.5.1.1  the problem does not appear): when 
> setting BIT from this example :
> rsSch.createTab("Bit_Tab",sqlp,conn);
> String sMaxBooleanVal = rsSch.extractVal("Bit_Tab",1,sqlp,conn); //value is 
> “1“
> cstmt = conn.prepareCall("{call Bit_In_Min(?)}");
> cstmt.setObject(1,sMaxBooleanVal,java.sql.Types.BIT); //-> throws the 
> exception below
> Exception (Problem with not supporting “0” and “1” for the type BIT; 
> moreover, confusing message):
> java.sql.SQLDataException: Invalid character string format for type BOOLEAN.
>          at 
> org.apache.derby.client.am.SQLExceptionFactory40.getSQLException(Unknown 
> Source)
>          at org.apache.derby.client.am.SqlException.getSQLException(Unknown 
> Source)
>          at org.apache.derby.client.am.PreparedStatement.setObject(Unknown 
> Source)
>          at 
> org.apache.commons.dbcp.DelegatingPreparedStatement.setObject(DelegatingPreparedStatement.java:166)
>          at 
> org.apache.commons.dbcp.DelegatingPreparedStatement.setObject(DelegatingPreparedStatement.java:166)
>          at 
> com.sun.ts.tests.jdbc.ee.callStmt.callStmt10.callStmtClient10.testSetObject48(callStmtClient10.java:812)
>          at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
>          at 
> sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
>          at 
> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)

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