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Using a local build from this morning on Windows XP with JDK 1.5.0_07. - Create/open a Java application project - Open the flattened OTA schema (800KB file) - Create a new XML schema - Tile the windows so they are side-by-side - Cut all of the complex types from OTA - Paste the complex types to the empty schema An IllegalStateException occurs in the schema model, but likely is caused by some thread timing issue in the schema tools code.
Created attachment 34539 [details] ISE stack trace
Extreme use-case, lower to P4.
Moved to 5.5.1
As Nam said, this is an extreme use-case, lowering to P4. The flattened OTA schema is a ridiculous, non-real-world test sample, and doing this particular operation is outside of normal (requires user to tile editor windows, which is uncommon).
Not worth the effort nor is a good use-case.