[LOG4J2-2762] [JDBC] MS-SQL Server JDBC driver throws SQLServerException when inserting a null value for a VARBINARY column

• Type: New Feature
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 2.13.1
• Component/s: JDBC
• Assignee: Gary D. Gregory
• Reporter: Gary D. Gregory
• Created: 18/Jan/20 14:46
• Updated: 18/Jan/20 15:28
• Resolved: 18/Jan/20 15:28

Description

If you use a ColumnMapping element for a VARBINARY column and a runtime value for that column, the MS-SQL Server JDBC driver throws an exception:

com.microsoft.sqlserver.jdbc.SQLServerException: Implicit conversion from data type nvarchar to varbinary is not allowed. Use the CONVERT function to run this query.
	at com.microsoft.sqlserver.jdbc.SQLServerException.makeFromDatabaseError(SQLServerException.java:262)
	at com.microsoft.sqlserver.jdbc.SQLServerStatement.getNextResult(SQLServerStatement.java:1624)
	at com.microsoft.sqlserver.jdbc.SQLServerPreparedStatement.doExecutePreparedStatement(SQLServerPreparedStatement.java:594)
	at com.microsoft.sqlserver.jdbc.SQLServerPreparedStatement$PrepStmtExecCmd.doExecute(SQLServerPreparedStatement.java:524)
	at com.microsoft.sqlserver.jdbc.TDSCommand.execute(IOBuffer.java:7194)
	at com.microsoft.sqlserver.jdbc.SQLServerConnection.executeCommand(SQLServerConnection.java:2979)
	at com.microsoft.sqlserver.jdbc.SQLServerStatement.executeCommand(SQLServerStatement.java:248)
	at com.microsoft.sqlserver.jdbc.SQLServerStatement.executeStatement(SQLServerStatement.java:223)
	at com.microsoft.sqlserver.jdbc.SQLServerPreparedStatement.executeUpdate(SQLServerPreparedStatement.java:473)
	at org.apache.logging.log4j.core.appender.db.jdbc.JdbcDatabaseManager.writeInternal(JdbcDatabaseManager.java:854)
	at org.apache.logging.log4j.core.appender.db.jdbc.JdbcDatabaseManager.writeThrough(JdbcDatabaseManager.java:887)
	at org.apache.logging.log4j.core.appender.db.AbstractDatabaseManager.write(AbstractDatabaseManager.java:264)
	at org.apache.logging.log4j.core.appender.db.AbstractDatabaseAppender.append(AbstractDatabaseAppender.java:110)
	at org.apache.logging.log4j.core.config.AppenderControl.tryCallAppender(AppenderControl.java:156)
	at org.apache.logging.log4j.core.config.AppenderControl.callAppender0(AppenderControl.java:129)
	at org.apache.logging.log4j.core.config.AppenderControl.callAppenderPreventRecursion(AppenderControl.java:120)
	at org.apache.logging.log4j.core.config.AppenderControl.callAppender(AppenderControl.java:84)
	at org.apache.logging.log4j.core.config.LoggerConfig.callAppenders(LoggerConfig.java:543)
	at org.apache.logging.log4j.core.config.LoggerConfig.processLogEvent(LoggerConfig.java:502)
	at org.apache.logging.log4j.core.config.LoggerConfig.log(LoggerConfig.java:485)
	at org.apache.logging.log4j.core.config.LoggerConfig.log(LoggerConfig.java:460)
	at org.apache.logging.log4j.core.config.AwaitCompletionReliabilityStrategy.log(AwaitCompletionReliabilityStrategy.java:82)
	at org.apache.logging.log4j.core.Logger.log(Logger.java:161)
	at org.apache.logging.log4j.spi.AbstractLogger.tryLogMessage(AbstractLogger.java:2198)
	at org.apache.logging.log4j.spi.AbstractLogger.logMessageTrackRecursion(AbstractLogger.java:2152)
	at org.apache.logging.log4j.spi.AbstractLogger.logMessageSafely(AbstractLogger.java:2135)
	at org.apache.logging.log4j.spi.AbstractLogger.logIfEnabled(AbstractLogger.java:1836)
	at org.apache.logging.log4j.spi.AbstractLogger.info(AbstractLogger.java:1290)

Where the column is defined as:

body VARBINARY(4096) NULL DEFAULT NULL 

Tested with:

    <dependency>
      <groupId>com.microsoft.sqlserver</groupId>
      <artifactId>mssql-jdbc</artifactId>
      <version>7.4.1.jre8</version>
    </dependency>

Microsoft SQL Server Developer (64-bit) 14.0.1000.169

• Windows Server 2019 Standard (10.0)
• English (United States)
• SQL_Latin1_General_CP1_CI_AS
• Clustered false
• HADR false
• XTP true