org.omg.CORBA.DATA_CONVERSION: illegal char value for string

[joe-chacko]

Describe the bug
When Liberty is acting as an IIOP client calling an IDL-defined interface (typically hosted on a non-Liberty server), transmission errors can occur for single-byte characters in the range 0x80–0xFF.

Steps to Reproduce
Set up an IDL-defined object hosted on a non-Liberty server that accepts an IDL string parameter.

Expected behavior
All valid single-byte characters (0x40–0xFF) should be transmitted correctly.

Diagnostic information:

• OpenLiberty Version: 23.0.0.3 and earlier
• Affected feature(s): jakarteeeClient, jakartaee, enterpriseBeans, enterpriseBeansRemote, javaeeClient, javaee, ejb, ejbRemote
• Java Version: any