How to Trace JVM Filesystem Accesses Using Java Use a custom security manager as a low-overhead alternative to native tracers. by Join the DZone community and get the full member experience.Join For Free For tracing filesystem accesses of Java applications, native tracing facilities are always the first choice. On Windows, use Process Monitor to trace I/O. On Linux, use strace. Other platforms provide similar facilities. By tracing directly in Java, you can work around environment limitations. For example, strace is unavailable in a container that lacks the CAP_SYS_PTRACE capability and the container host is not always accessible. Also, a potentially lighter-weight tracing mechanism comes handy for tracing in production environments.