Option "gccapacity" defined in
src/jdk.jcmd/share/classes/sun/tools/jstat/resources/jstat_options has the same counter "sun.gc.generation.0.space.1.capacity" included in two columns: "Survivor 0 Space Capacity - Current" and "Survivor 1 Space Capacity - Current" .
For "Survivor 1 Space Capacity - Current" the correct counter name is "sun.gc.generation.0.space.2.capacity"
src/jdk.jcmd/share/classes/sun/tools/jstat/resources/jstat_options has the same counter "sun.gc.generation.0.space.1.capacity" included in two columns: "Survivor 0 Space Capacity - Current" and "Survivor 1 Space Capacity - Current" .
For "Survivor 1 Space Capacity - Current" the correct counter name is "sun.gc.generation.0.space.2.capacity"