[jira] [Created] (LOG4J2-2559) NullPointerException in JdbcAppender.createAppender

["Li Lei (JIRA)" <ji...@apache.org>]

Li Lei created LOG4J2-2559:
------------------------------

             Summary: NullPointerException in JdbcAppender.createAppender
                 Key: LOG4J2-2559
                 URL: https://issues.apache.org/jira/browse/LOG4J2-2559
             Project: Log4j 2
          Issue Type: Bug
          Components: Appenders, JDBC
    Affects Versions: 2.11.1, 2.10.0, 2.11.2
            Reporter: Li Lei


 when I build the appender with 'JdbcAppender.createAppender' ,   

in static class JdbcDatabaseManagerFactory, the method  createManager  has exception that is not catched.  The code as follows:
{code:java}
//代码占位符
StringBuilder sb = (new StringBuilder("insert into ")).append(data.tableName).append(" (");
JdbcDatabaseManager.appendColumnNames("INSERT", data, sb);
sb.append(") values (");
int i = 1;
ColumnMapping[] arr$ = data.columnMappings;
int len$ = arr$.length;

int len$;
for(len$ = 0; len$ < len$; ++len$) {
    ColumnMapping mapping = arr$[len$];
    String mappingName = mapping.getName();
    if (Strings.isNotEmpty(mapping.getLiteralValue())) {
        JdbcDatabaseManager.logger().trace("Adding INSERT VALUES literal for ColumnMapping[{}]: {}={} ", i, mappingName, mapping.getLiteralValue());
        sb.append(mapping.getLiteralValue());
    } else if (Strings.isNotEmpty(mapping.getParameter())) {
        JdbcDatabaseManager.logger().trace("Adding INSERT VALUES parameter for ColumnMapping[{}]: {}={} ", i, mappingName, mapping.getParameter());
        sb.append(mapping.getParameter());
    } else {
        JdbcDatabaseManager.logger().trace("Adding INSERT VALUES parameter marker for ColumnMapping[{}]: {}={} ", i, mappingName, '?');
        sb.append('?');
    }

    sb.append(',');
    ++i;
}

{code}
because I wanto use columnConfig,  and  the variable 'columnMappings' is null,  so there mayby a NullPointerException here.....



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