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https://issues.apache.org/jira/browse/DERBY-6707?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14097779#comment-14097779
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Sai Zhang commented on DERBY-6707:
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Simply, the same problem occurs if an invalid value is specified for the
"derby.stream.error.field" option, like:
derby.stream.error.field=hello
Here is the error message after issuing a query:
ij> CONNECT 'jdbc:derby:firstdb';
JAVA ERROR: java.lang.ExceptionInInitializerError
ij> select * from COUNTRIES;
IJ ERROR: Unable to establish connection
ij> Exception in thread "main" java.lang.NoClassDefFoundError: Could not
initialize class org.apache.derby.jdbc.EmbeddedDriver
at org.apache.derby.jdbc.AutoloadedDriver.getDriverModule(Unknown
Source)
at org.apache.derby.jdbc.AutoloadedDriver.connect(Unknown Source)
at java.sql.DriverManager.getConnection(DriverManager.java:579)
at java.sql.DriverManager.getConnection(DriverManager.java:243)
at org.apache.derby.impl.tools.ij.utilMain.cleanupGo(Unknown Source)
at org.apache.derby.impl.tools.ij.utilMain.go(Unknown Source)
at org.apache.derby.impl.tools.ij.Main.go(Unknown Source)
at org.apache.derby.impl.tools.ij.Main.mainCore(Unknown Source)
at org.apache.derby.impl.tools.ij.Main.main(Unknown Source)
at org.apache.derby.tools.ij.main(Unknown Source)
at org.apache.derby.iapi.tools.run.main(Unknown Source)
> Inadequate error messages for configuration errors in Derby
> -----------------------------------------------------------
>
> Key: DERBY-6707
> URL: https://issues.apache.org/jira/browse/DERBY-6707
> Project: Derby
> Issue Type: Bug
> Affects Versions: 10.10.2.0
> Environment: All
> Reporter: Sai Zhang
> Labels: configuration, invald
> Original Estimate: 24h
> Remaining Estimate: 24h
>
> Dear developers,
> Derby's error message for misconfiguration should be improved. Sometimes, the
> dumped error messages is very unclear, and costs users extra time to figure
> out a simple problem.
> Here is a reproducible example
> 1. specify a wrong value for derby.stream.error.method option, and put the
> following line in the derby.properties file
> derby.stream.error.method=hello (obvious it is wrong)
> 2.
> connect to a derby db, and issue a selection query
> 3.
> derby simply dumped the following error message, which is hard to be
> connected to the misconfigured option
> ij> CONNECT 'jdbc:derby:firstdb';
> JAVA ERROR: java.lang.ExceptionInInitializerError
> ij> select * from COUNTRIES;
> IJ ERROR: Unable to establish connection
> ij> Exception in thread "main" java.lang.NoClassDefFoundError: Could not
> initialize class org.apache.derby.jdbc.EmbeddedDriver
> at org.apache.derby.jdbc.AutoloadedDriver.getDriverModule(Unknown
> Source)
> at org.apache.derby.jdbc.AutoloadedDriver.connect(Unknown Source)
> at java.sql.DriverManager.getConnection(DriverManager.java:579)
> at java.sql.DriverManager.getConnection(DriverManager.java:243)
> at org.apache.derby.impl.tools.ij.utilMain.cleanupGo(Unknown Source)
> at org.apache.derby.impl.tools.ij.utilMain.go(Unknown Source)
> at org.apache.derby.impl.tools.ij.Main.go(Unknown Source)
> at org.apache.derby.impl.tools.ij.Main.mainCore(Unknown Source)
> at org.apache.derby.impl.tools.ij.Main.main(Unknown Source)
> I would sugget to fix this problem by checking invalid configuration option
> names, and improve error message (at least the error message should pinpoint
> the likely misconfigured options).
> Please let me know your thoughts.
> Thanks
> -Sai
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