Searched on Google with the first line of a JAVA stack trace?

We can recommend more relevant solutions and speed up debugging when you paste your entire stack trace with the exception message. Try a sample exception.

Recommended solutions based on your search

java.lang.NullPointerException at org.apache.derby.impl.sql.compile.ResultColumn.columnTypeAndLengthMatch(Unknown Source) at org.apache.derby.impl.sql.compile.ResultColumnList.columnTypesAndLengthsMatch(Unknown Source) at org.apache.derby.impl.sql.compile.ResultSetNode.columnTypesAndLengthsMatch(Unknown Source) at org.apache.derby.impl.sql.compile.UnionNode.addNewNodes(Unknown Source) at org.apache.derby.impl.sql.compile.UnionNode.modifyAccessPaths(Unknown Source) at org.apache.derby.impl.sql.compile.SingleChildResultSetNode.modifyAccessPaths(Unknown Source) at org.apache.derby.impl.sql.compile.DMLStatementNode.optimizeStatement(Unknown Source) at org.apache.derby.impl.sql.compile.DMLModStatementNode.optimizeStatement(Unknown Source) at org.apache.derby.impl.sql.GenericStatement.prepMinion(Unknown Source) at org.apache.derby.impl.sql.GenericStatement.prepare(Unknown Source) at org.apache.derby.impl.sql.conn.GenericLanguageConnectionContext.prepareInternalStatement(Unknown Source) at org.apache.derby.impl.jdbc.EmbedStatement.execute(Unknown Source) at org.apache.derby.impl.jdbc.EmbedStatement.executeBatchElement(Unknown Source) at org.apache.derby.impl.jdbc.EmbedStatement.executeBatch(Unknown Source)