Executing the VM with -XX:+PrintEscapeAnalysis -XX:BCEATraceLevel=3 leads to the following output:

[EA] estimated escape information for java.lang.RuntimeException::<init>
     non-escaping args: AllocatedObj(0x00007fb46c0da6c0)
     stack-allocatable args: AllocatedObj(0x00007fb46c0da6f0)
     return non-local value
     modified args: 0x1c 0
     flags: unknown_modified

The lines about non-escaping and stack-allocatable args contain "AllocatedObj" addresses instead of the content of the corresponding VectorSets. The problem is in 'BCEscapeAnalyzer::dump()' where 'print_on' is called on VectorSet instead of 'print'.