From: Martin Quinson <martin.quinson@loria.fr>
Date: Mon, 7 Apr 2014 00:08:34 +0000 (+0200)
Subject: fix a segfault when Host.getByName(null) is called
X-Git-Tag: v3_11~88^2~2
X-Git-Url: http://info.iut-bm.univ-fcomte.fr/pub/gitweb/simgrid.git/commitdiff_plain/13ee46b3a96091710df934f6af7e87170f3f2eef?ds=sidebyside

fix a segfault when Host.getByName(null) is called
---

diff --git a/src/bindings/java/jmsg_host.c b/src/bindings/java/jmsg_host.c
index 81ed7f7340..a7d54a38b0 100644
--- a/src/bindings/java/jmsg_host.c
+++ b/src/bindings/java/jmsg_host.c
@@ -69,11 +69,11 @@ Java_org_simgrid_msg_Host_getByName(JNIEnv * env, jclass cls,
   jobject jhost;                /* global reference to the java host instance returned  */
 
   /* get the C string from the java string */
-  const char *name = (*env)->GetStringUTFChars(env, jname, 0);
-  if (name == NULL) {
+  if (jname == NULL) {
   	jxbt_throw_null(env,bprintf("No host can have a null name"));
   	return NULL;
   }
+  const char *name = (*env)->GetStringUTFChars(env, jname, 0);
   /* get the host by name       (the hosts are created during the grid resolution) */
   host = MSG_get_host_by_name(name);