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From "Daniel John Debrunner (JIRA)" <j...@apache.org>
Subject [jira] Commented: (DERBY-2815) ij doesn't start with J2ME / JSR169 / weme6.1 because attempting to find java.sql.Driver if ij.protocol property is specified
Date Wed, 14 Nov 2007 16:16:43 GMT

    [ https://issues.apache.org/jira/browse/DERBY-2815?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#action_12542496
] 

Daniel John Debrunner commented on DERBY-2815:
----------------------------------------------

> although it's slightly confusing to me that the variable which is false if we're in a
Java ME environment is called IS_AT_LEAST_JDBC2, when JSR-169 is based upon JDBC 3.0. 

However JSR169 is not a super-set of JDBC 2.0, so JSR169 does not provide JDBC 2 functionality
so IS_AT_LEAST_JDBC2 being false seems correct to me.

> ij doesn't start with J2ME / JSR169 / weme6.1 because attempting to find java.sql.Driver
if ij.protocol property is specified
> -----------------------------------------------------------------------------------------------------------------------------
>
>                 Key: DERBY-2815
>                 URL: https://issues.apache.org/jira/browse/DERBY-2815
>             Project: Derby
>          Issue Type: Bug
>          Components: Tools
>    Affects Versions: 10.3.1.4
>         Environment: windows XP, weme6.1 jvm (J2ME 1.1)
>            Reporter: Myrna van Lunteren
>            Assignee: Myrna van Lunteren
>            Priority: Minor
>         Attachments: DERBY-2815.diff1, DERBY-2815.diff2
>
>
> When starting ij with the following command:
> ij -jcl:foun11 -Xbootclasspath/a:<path_to_jdbc.jar> org.apache.derby.tools.ij -p
derby.properties
> and derby.properties contains the following:
> -----------------
> ij.database=jdbc:derby:bladb;create=true
> ij.protocol=jdbc:derby:
> ij.showNoConnectionsAtStart=true
> ij.showNoCountForSelect=true
> # DataSource properties, only used if ij.dataSource is set
> ij.dataSource.databaseName=bladb
> ij.dataSource.createDatabase=create
> ij.dataSource=org.apache.derby.jdbc.EmbeddedSimpleDataSource
> ------------------
> ij does not start and instead gives the following stack trace:
> Exception in thread "main" java.lang.NoClassDefFoundError: java.sql.Driver
>         at java.lang.ClassLoader.defineClassImpl(Native Method)
>         at java.lang.ClassLoader.defineClass(ClassLoader.java:226)
>         at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:10
> 9)
>         at java.net.URLClassLoader.findClassImpl(URLClassLoader.java:1029)
>         at java.net.URLClassLoader$4.run(URLClassLoader.java:549)
>         at java.security.AccessController.doPrivileged(AccessController.java:213
> )
>         at java.net.URLClassLoader.findClass(URLClassLoader.java:547)
>         at com.ibm.oti.vm.URLSystemClassLoader.findClass(URLSystemClassLoader.ja
> va:27)
>         at java.lang.ClassLoader.loadClass(ClassLoader.java:606)
>         at com.ibm.oti.vm.URLSystemClassLoader.loadClass(URLSystemClassLoader.ja
> va:60)
>         at java.lang.ClassLoader.loadClass(ClassLoader.java:563)
>         at java.lang.Class.forNameImpl(Native Method)
>         at java.lang.Class.forName(Class.java:114)
>         at org.apache.derby.impl.tools.ij.util.loadDriver(util.java:849)
>         at org.apache.derby.impl.tools.ij.util.loadDriverIfKnown(util.java:833)
>         at org.apache.derby.impl.tools.ij.util.startJBMS(util.java:476)
>         at org.apache.derby.impl.tools.ij.util.startJBMS(util.java:585)
>         at org.apache.derby.impl.tools.ij.ConnectionEnv.init(ConnectionEnv.java:
> 64)
>         at org.apache.derby.impl.tools.ij.utilMain.initFromEnvironment(utilMain.
> java:179)
>         at org.apache.derby.impl.tools.ij.Main.<init>(Main.java:230)
>         at org.apache.derby.impl.tools.ij.Main.getMain(Main.java:193)
>         at org.apache.derby.impl.tools.ij.Main.mainCore(Main.java:178)
>         at org.apache.derby.impl.tools.ij.Main.main(Main.java:73)
>         at org.apache.derby.tools.ij.main(ij.java:67)
> The properties file is an example of the 'old test harness' properties files. The test
harness would get sql scripts tested with J2ME by stripping away the ij.protocol and ij.database
specifications.
> In another bug - DERBY-1218 - it was suggested ij.protocol be blanked out (in tools/ij/util.java?)
with J2ME.
> Another approach would be to check for ij.protocol or ij.database setting when we have
a datasource and we're using J2ME.

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