[armedbear-devel] compiled errors: debug.assertTrue()

Hi, When I try to compile the mcs-core.cl file (attached) with java abcl, I get this error: Failed to get InputStream for 'jar:file:D:/otro/kernel/modules/fmcs.bin!/mcs_core_4.cls'ABCL Debug.assertTrue() assertion failed!java.lang.Error: ABCL Debug.assertTrue() assertion failed! Why is this happening? How can I resolved it? Thanks