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https://issues.apache.org/jira/browse/DERBY-2785?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12880642#action_12880642
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Bryan Pendleton commented on DERBY-2785:
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Hi Eranda,
I see you are right, there is no exception in the derby.log.
To see the stack trace, I had to add
e.printStackTrace() ;
to the 2 catch() blocks near line 375 of
java/tools/org/apache/derby/impl/tools/ij/utilMain.java
When I did that, I see:
ij> describe 'CamelCaseTable';
java.lang.NullPointerException
at org.apache.derby.impl.tools.ij.ij.caIdentifier(ij.java:2635)
at org.apache.derby.impl.tools.ij.ij.DescTableStatement(ij.java:1445)
at org.apache.derby.impl.tools.ij.ij.ijStatement(ij.java:1110)
at
org.apache.derby.impl.tools.ij.utilMain.runScriptGuts(utilMain.java:341)
at org.apache.derby.impl.tools.ij.utilMain.go(utilMain.java:261)
at org.apache.derby.impl.tools.ij.Main.go(Main.java:229)
at org.apache.derby.impl.tools.ij.Main.mainCore(Main.java:184)
at org.apache.derby.impl.tools.ij.Main.main(Main.java:75)
at org.apache.derby.tools.ij.main(ij.java:59)
JAVA ERROR: java.lang.NullPointerException
In my tree, line 2635 of ij.java is the line:
haveConnection();
DatabaseMetaData dbmd = theConnection.getMetaData();
String identifier = i;
if(t!=null)
identifier = t.image;
if (dbmd.storesLowerCaseIdentifiers())
identifier = identifier.toLowerCase(Locale.ENGLISH);
else if (dbmd.storesUpperCaseIdentifiers())
identifier = identifier.toUpperCase(Locale.ENGLISH); <======
THIS IS LINE 2635
{if (true) return identifier;}
throw new Error("Missing return statement in function");
}
So 'identifier' must be NULL at this point.
Maybe you can investigate and determine why this is?
thanks,
bryan
> ij "describe" built in command cannot describe a table named "run"
> ------------------------------------------------------------------
>
> Key: DERBY-2785
> URL: https://issues.apache.org/jira/browse/DERBY-2785
> Project: Derby
> Issue Type: Bug
> Components: Tools
> Affects Versions: 10.2.2.0
> Environment: OS-X, Java 1.5
> Reporter: Tim Halloran
> Assignee: Eranda Sooriyabandara
> Priority: Minor
> Attachments: caidentifier.diff, derby-2785.diff, derby-2785.diff,
> derby-2785.diff, derbyall_report.txt, derbyall_report.txt,
> describeKeywords.diff, junitAll.out, step logs.txt
>
>
> steps to duplicate:
> (attach ij to any database)
> ij> create table run (i int);
> 0 rows inserted/updated/deleted
> ij> desc run;
> ERROR 42X01: Syntax error: Encountered "desc" at line 1, column 1.
> ij>
> I think this is a parser problem within ij where the "run" is taken as a
> token and that token is not included in the definition of a tablename
> expression in the grammer (should be an easy fix).
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