Sai Zhang created DERBY-6707:
--------------------------------
Summary: 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
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
--
This message was sent by Atlassian JIRA
(v6.2#6252)
