sigar_t already has a handle to advapi32.dll, use it

bindings/java/src/jni/javasigar.c

@@ -2,6 +2,8 @@
 #include "sigar.h"
 #include "sigar_fileinfo.h"
 #include "sigar_log.h"
+#include "sigar_private.h"
+#include "sigar_os.h"
 
 #include <string.h>
 
@@ -1184,6 +1186,11 @@ JNIEXPORT jlong SIGAR_JNI(Sigar_getServicePid)
     SC_HANDLE mgr;
     dSIGAR(0);
 
+    if (!sigar->adv_handle) {
+        sigar_throw_notimpl(env, "advapi32.dll not available");
+        return 0;
+    }
+
     name = JENV->GetStringUTFChars(env, jname, &is_copy);
 
     mgr = OpenSCManager(NULL, SERVICES_ACTIVE_DATABASE,
@@ -1195,13 +1202,10 @@ JNIEXPORT jlong SIGAR_JNI(Sigar_getServicePid)
         if (svc) {
             SERVICE_STATUS_PROCESS status;
             DWORD bytes;
-            HANDLE lib;
-
-            if ((lib = LoadLibrary("advapi32.dll"))) {
-                QueryServiceStatusExFunc status_query;
-                status_query =
+            QueryServiceStatusExFunc status_query =
                 (QueryServiceStatusExFunc)
-                    GetProcAddress(lib, "QueryServiceStatusEx");
+                    GetProcAddress(sigar->adv_handle,
+                                   "QueryServiceStatusEx");
 
             if (!status_query) {
                 err = SIGAR_ENOTIMPL;
@@ -1215,12 +1219,6 @@ JNIEXPORT jlong SIGAR_JNI(Sigar_getServicePid)
             else {
                 err = GetLastError();
             }
-
-                FreeLibrary(lib);
-            }
-            else {
-                err = GetLastError();
-            }
             CloseServiceHandle(svc);
         }
         else {

bindings/java/src/net/hyperic/sigar/test/TestPTQL.java

@@ -45,6 +45,7 @@ public class TestPTQL extends SigarTestCase {
         "Pid.PidFile.eq=pid.file",
         "Pid.Pid.eq=1",
         "Pid.Service.eq=Eventlog",
+        "Pid.Service.eq=NOSUCHSERVICE",
         "Pid.Service.eq=Hyperic HQ Agent",
         "State.Name.eq=java,Pid.Pid.ne=$$", //all java procs cept this one
         "Cpu.Percent.ge=0.2",