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https://issues.apache.org/jira/browse/DERBY-1381?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#action_12484494
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Laura Stewart commented on DERBY-1381:
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Help me understand the first line in the example. Specifically what does the
flag -Dij do? Or is the entire flag -Dij.exceptionTrace=true ? and in Java is
it called a "flag"?
As I read the example, you specify that for ij, tracing is on
I'm not sure what the second line does... start if?
The third line you are in ij and connect to the database "wombat"
>From there the error is returned along with the full stack trace.
Pleaes provide any other info that would be good to include in the
documentation.
> Document ij.exceptionTrace property
> -----------------------------------
>
> Key: DERBY-1381
> URL: https://issues.apache.org/jira/browse/DERBY-1381
> Project: Derby
> Issue Type: Improvement
> Components: Documentation
> Affects Versions: 10.1.2.1
> Reporter: Kathey Marsden
> Priority: Trivial
>
> The ij.exceptionTrace property can be used to show full stack traces with ij.
> It would be good to document it so users know how to print the full stack
> trace when reporting issues and to help developers debug issues reported in
> ij.
> Below is an example:
> $ java -Dij.exceptionTrace=true org.apache.derby.tools.ij
> ij version 10.2
> ij> connect 'jdbc:derby:wombat';
> ERROR XJ004: Database 'wombat' not found.
> SQL Exception: Database 'wombat' not found.
> at
> org.apache.derby.impl.jdbc.SQLExceptionFactory.getSQLException(SQLExceptionFactory.java:44)
> at org.apache.derby.impl.jdbc.Util.newEmbedSQLException(Util.java:87)
> at org.apache.derby.impl.jdbc.Util.newEmbedSQLException(Util.java:93)
> at
> org.apache.derby.impl.jdbc.Util.generateCsSQLException(Util.java:172)
> at
> org.apache.derby.impl.jdbc.EmbedConnection.newSQLException(EmbedConnection.java:1955)
> at
> org.apache.derby.impl.jdbc.EmbedConnection.<init>(EmbedConnection.java:254)
> at
> org.apache.derby.impl.jdbc.EmbedConnection30.<init>(EmbedConnection30.java:72)
> at
> org.apache.derby.jdbc.Driver30.getNewEmbedConnection(Driver30.java:73)
> at
> org.apache.derby.jdbc.InternalDriver.connect(InternalDriver.java:200)
> at java.sql.DriverManager.getConnection(DriverManager.java:512)
> at java.sql.DriverManager.getConnection(DriverManager.java:140)
> at org.apache.derby.impl.tools.ij.ij.dynamicConnection(ij.java:873)
> at org.apache.derby.impl.tools.ij.ij.ConnectStatement(ij.java:723)
> at org.apache.derby.impl.tools.ij.ij.ijStatement(ij.java:553)
> at org.apache.derby.impl.tools.ij.utilMain.go(utilMain.java:289)
> at org.apache.derby.impl.tools.ij.Main.go(Main.java:207)
> at org.apache.derby.impl.tools.ij.Main.mainCore(Main.java:173)
> at org.apache.derby.impl.tools.ij.Main14.main(Main14.java:55)
> at org.apache.derby.tools.ij.main(ij.java:60)
> ij
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