3461   // If we are running in a headless jre, force java.awt.headless property

  3462   // to be true unless the property has already been set.

  3463   // Also allow the OS environment variable JAVA_AWT_HEADLESS to set headless state.

  3464   if (os::is_headless_jre()) {

  3465     const char* headless = Arguments::get_property("java.awt.headless");

  3466     if (headless == NULL) {

  3467       const char *headless_env = ::getenv("JAVA_AWT_HEADLESS");

  3468       if (headless_env == NULL) {

  3469         if (!add_property("java.awt.headless=true")) {

  3470           return JNI_ENOMEM;

  3471         }

  3472       } else {

  3473         char buffer[256];

  3474         jio_snprintf(buffer, sizeof(buffer), "java.awt.headless=%s", headless_env);

  3475         if (!add_property(buffer)) {

  3476           return JNI_ENOMEM;

  3477         }

  3478       }

  3479     }

  3480   }

  3481