[DAFFODIL-2574] Cast error when multiplying two unsignedBytes

• Type: Bug
• Status: Open
• Priority: Major
• Resolution: Unresolved
• Affects Version/s: 3.1.0
• Fix Version/s: 4.0.0
• Component/s: General
• Assignee: Steve Lawrence
• Reporter: Kyle Rosales
• Created: 01/Nov/21 13:06
• Updated: 03/Apr/24 17:02

Description

Ran into an issue when trying to multiple two elements of type unsignedByte together in a `dfdl:occursCount`. It is causing a cast exception trying to convert java.lang.integer to a java.lang.short. I was able to work around it by casing once of the bytes as an integer ` dfdl:occursCount="{ ../value1 * xs:unsignedInt(../value2) }”`. Attached is a tdml demonstrating the error.

org.apache.daffodil.exceptions.Abort: Invariant broken. Runtime.scala - Leaked exception: java.lang.ClassCastException: java.lang.Integer cannot be cast to java.lang.Short
java.lang.ClassCastException: java.lang.Integer cannot be cast to java.lang.Short
at org.apache.daffodil.infoset.DataValue$.getShort$extension(DataValue.scala:76)
at org.apache.daffodil.dpath.UnsignedByteToLong$.computeValue(ConverterOps3.scala:94)
at org.apache.daffodil.dpath.UnsignedByteToLong$.computeValue(ConverterOps3.scala:93)