I'm attaching to process using sun.jvm.hotspot.jdi.SACoreAttachingConnector and then calling Location.lineNumber("some-stratum") to get stratum information for a source location for a class which has SourceDebugInformation attribute.

But instead of stratum in SourceDebugInformation, the class appears to have only "Java" stratum. I don't have such problem with, for example, com.sun.tools.jdi.SunCommandLineLauncher: the stratum is accessible.

Please see comments for details.