During the tests of BIRT 4.21 milestone 1, I tested the OSGi version.
The execution of the demo report with charts works well with the standard viewer execution and the pdf-generation.
If the chart-report will be executed directly with the execution mode "run" or "preview" an exception occur and the pdf cannot be generated.
Execution call: http://localhost:8080/BIRT_OSGi_4.21/run?__report=example_chart.rptdesign¶mCust=130&__format=pdf
The same execution with BIRT OSGi 4.20 works fine.
The same execution with BIRT Runtime 4.21 works fine.
The same execution with BIRT Designer 4.21 works fine.
Tomcat error log
tomcat.9.109-stderr.2025-09-06.log
Screen, result of execution
