FULL PRODUCT VERSION :
C:\FirstSpirit\trunk>java -version
java version "1.7.0_01"
Java(TM) SE Runtime Environment (build 1.7.0_01-b08)
Java HotSpot(TM) 64-Bit Server VM (build 21.1-b02, mixed mode)

ADDITIONAL OS VERSION INFORMATION :
any os

EXTRA RELEVANT SYSTEM CONFIGURATION :
not relevant

A DESCRIPTION OF THE PROBLEM :
Under turkish locale creation of DataFlavour instances where mime type string contains capital letter "i" fails with IllegalArgumentException.

STEPS TO FOLLOW TO REPRODUCE THE PROBLEM :
Compile and execute this two lines:

java.util.Locale.setDefault(new Locale("tr", "TR"));
new java.awt.datatransfer.DataFlavor("xxx/Its_a_bug; class=java.lang.String");


EXPECTED VERSUS ACTUAL BEHAVIOR :
EXPECTED -
Code should pass without exception
ACTUAL -
IllegalArgumentException, see below

ERROR MESSAGES/STACK TRACES THAT OCCUR :
java.lang.IllegalArgumentException: failed to parse:xxx/Its_a_bug; class=java.lang.String
at java.awt.datatransfer.DataFlavor.<init>(DataFlavor.java:428)
at de.espirit.firstspirit.ui.gadgets.aspects.transfer.TestTransferTypeImpl.test_creating_transfer_type_with_turkish_locale(TestTransferTypeImpl.java:21)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:334)
at java.util.concurrent.FutureTask.run(FutureTask.java:166)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1110)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:603)
at java.lang.Thread.run(Thread.java:722)

REPRODUCIBILITY :
This bug can be reproduced always.

---------- BEGIN SOURCE ----------
import java.awt.datatransfer.DataFlavor;
import java.util.Locale;

public class Test {

public static void main(String[] args) throws Exception {
Locale.setDefault(new Locale("tr", "TR"));
new DataFlavor("xxx/Its_a_bug; class=java.lang.String");
}

}
---------- END SOURCE ----------

CUSTOMER SUBMITTED WORKAROUND :
Do not use flavours with capital "i" letter.