SUGGESTED FIX

diff -r a301b69dfdc3 src/share/native/java/lang/System.c
--- a/src/share/native/java/lang/System.c	Tue Jan 03 13:43:05 2012 -0800
+++ b/src/share/native/java/lang/System.c	Wed Jan 04 06:39:55 2012 -0800
@@ -165,10 +165,6 @@
     return NULL;
 }
 
-#ifdef MACOSX
-extern void freeProps(java_props_t *sProps);
-#endif
-
 JNIEXPORT jobject JNICALL
 Java_java_lang_System_initProperties(JNIEnv *env, jclass cla, jobject props)
 {
@@ -395,10 +391,6 @@
         (*env)->DeleteLocalRef(env, jVMVal);
     }
 
-#ifdef MACOSX
-    // Free malloced memory.
-    freeProps(sprops);
-#endif
     return ret;
 }
diff -r a301b69dfdc3 src/solaris/native/java/lang/java_props_macosx.c
--- a/src/solaris/native/java/lang/java_props_macosx.c	Tue Jan 03 13:43:05 2012 -0800
+++ b/src/solaris/native/java/lang/java_props_macosx.c	Wed Jan 04 06:45:42 2012 -0800
@@ -348,37 +348,3 @@
 
     CFRelease(dict);
 }
-
-
-void freeProps(java_props_t *sprops) {
-    if (sprops->httpProxyEnabled) {
-        free(sprops->httpHost);
-        free(sprops->httpPort);
-    }
-
-    if (sprops->httpsProxyEnabled) {
-        free(sprops->httpsHost);
-        free(sprops->httpsPort);
-    }
-
-    if (sprops->ftpProxyEnabled) {
-        free(sprops->ftpHost);
-        free(sprops->ftpPort);
-    }
-
-    if (sprops->socksProxyEnabled) {
-        free(sprops->socksHost);
-        free(sprops->socksPort);
-    }
-
-    if (sprops->gopherProxyEnabled) {
-        free(sprops->gopherHost);
-        free(sprops->gopherPort);
-    }
-    if (sprops->exceptionList) {
-        free(sprops->exceptionList);
-    }
-
-    free(sprops->os_name);
-    free(sprops->os_version);
-}
                                     

EVALUATION

freeProps() call added by mac port can only be called once. Issue seen if System.setProperties(null) is called.
GetJavaProperties() called a second time, which is supposed to return the statically populated information
from first call. But some of it has been freed already.

Fix is to remove the freeProps() code added in the original port changeset.