CODEWITHSUNDEEP
javanullpointerexceptionsigar
Marcus Se
Marcus Se

Reputation: 63

Failed to load sigar-amd64-winnt: java.lang.NullPointerException

I'm new to sigar and native library programming in java, so maybe it is just a simple problem, but I can't find a result on my own. I'm using eclipse indigo on a win 7 (64bit) OS. I've taken the following steps:

Add sigar.jar an log4l.jar to the jre6/lib, add the sigar-amd64-winnt.dll (also the files for x86) file to ./Program Files/Java/jre6/lib. Then I only want to create a new sigar() but get the following exception:

Failed to load sigar-amd64-winnt: java.lang.NullPointerException
org.hyperic.sigar.SigarException: Failed to load sigar-amd64-winnt: java.lang.NullPointerException
    at org.hyperic.sigar.Sigar.loadLibrary(Sigar.java:170)
    at org.hyperic.sigar.Sigar.<clinit>(Sigar.java:100)
    at MemExample.<clinit>(MemExample.java:8)
Exception in thread "main" java.lang.UnsatisfiedLinkError: org.hyperic.sigar.Mem.gather(Lorg/hyperic/sigar/Sigar;)V
    at org.hyperic.sigar.Mem.gather(Native Method)
    at org.hyperic.sigar.Mem.fetch(Mem.java:30)
    at org.hyperic.sigar.Sigar.getMem(Sigar.java:304)
    at MemExample.getInformationsAboutMemor

I've already tried to manipulate the VM-Arguments (in Run Config -DJava.library.path="path/of/lib"), to set the native library in the java build path to the path of sigar/lib and to set the Systempath in the program on my own with System.setProperty("path", "-"). All of which are unsuccessful until now. And step by step I yield to despair.

**Edit:**Is it possible that sigar only works with AMD? Some friend tried the same code with an AMD processor and win 7 (32b) and it works. I already look for an answer in the hyperic sigar developer forum, but I can't find any useful tips or answers.

Upvotes: 1

Views: 3144

Answers (1)

elb
elb

Reputation: 11

Seems that sigar-amd64-winnt.lib is missing: http://communities.vmware.com/message/1947455#1947455

Upvotes: 1

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