Comments for Kai Witte's Blog

Comment on uCertify review by Munim

Munim — Tue, 10 Jan 2012 17:42:24 +0000

Hi,

I am trying to take A+ 220-701 & 702 exams and looking for an reliable prepkit. I was using Google to search for a prepkit and I ended up in the ucertify website. Their prepkit software seems nice and helpful but all the comments here, kinda put me in an undecided condition. Has anyone tried their full version A+ prepkit? Does that also contain wrong answers? Please let me know.

Munim

Comment on uCertify review by Justin

Justin — Mon, 06 Jun 2011 18:23:26 +0000

I bought a Exam Prep for the MS 070-448 exam and found a large number of questions that are incorrect. So much that I have little confidence in the content. How can a company charge $120 for material that is wrong. I would not recommend any exam preps by this company and if I don’t get my money back from them, I am going to sue. If anyone is interested in a class action, please contact me at justins704@live.com.

Comment on JNI (Java Native Interface): Exception in thread “main” java.lang.UnsatisfiedLinkError: Can’t find dependent libraries by Mark M

Mark M — Fri, 27 May 2011 04:56:28 +0000

I have a probable solution for anyone getting this error when working with Eclipse! If you are loading your dll file as a resource into your system classloader, then you absolutely must do a project–>clean every single time you update your dll!! Even restarting eclipse or your computer won’t clear the old dll resource from your classloader. Tracking that one down was incredibly painful!

Comment on JNI (Java Native Interface): Exception in thread “main” java.lang.UnsatisfiedLinkError: Can’t find dependent libraries by Daniel

Daniel — Mon, 16 May 2011 18:25:12 +0000

Idk if this will help anyone, but I’m using C++ compiling with VS win64 2010 command prompt.
I used the -MD option suggested fix and it did not affect my link problem.
I since my code was written in C++ I had modified my JNI header file code and removed this code:
“#ifdef __cplusplus
extern “C” {
#endif

//Method prototypes

#ifdef __cplusplus
}
#endif”
Obviously I’m not very clever. Once I put this code back in and ran the dumpbin tool (thanks to whoever mentioned that first) I got a perfect looking signatures.
This solved my linking issue.

Comment on JNI (Java Native Interface): Exception in thread “main” java.lang.UnsatisfiedLinkError: Can’t find dependent libraries by anandhrds

anandhrds — Thu, 05 May 2011 08:07:12 +0000

Thanks for all the members in this post….
If you are using gcc complier, then add “-Wl,-kill-at” as one of the argument to gcc, This will solve the problem.
So, for example, in my case the command looks like this
“-Wl,-kill-at” -shared HelloWorld.c “-Ic:\Program Files\Java\jdk1.6.0_02\include” “-Ic:\Program Files\Java\jdk1.6.0_02\include\win32″ -o ${workspace_loc:/JNISampleJava/bin}\HelloWorld.dll

Comment on uCertify review by Kai Witte

Kai Witte — Thu, 14 Apr 2011 17:46:33 +0000

Hello Kamesh,

I do not know that particular prep kit, but given the poor reviews on other uCertify products I would advise against it unless you find a positive review.

The cert is now called “Oracle Certified Professional, Java EE 5 Web Services Developer”, and I know how hard it is to find a simulator for it.

One source of quality questions is this: http://java.boot.by/scdjws5-quiz/ It’s only 108 questions and it costs something, but I believe it’s a good start.

It’s really hard to get study material for OCPJWS 5.

Kai

Comment on uCertify review by Kamesh

Kamesh — Thu, 14 Apr 2011 11:55:27 +0000

Hi,
I am planning to buy the kit for SCX-310-230 Sun certified webservice developer. I could not find any user reviews on the quality of the ucertify about this prep kit. Please advice.

Comment on JNI (Java Native Interface): Exception in thread “main” java.lang.UnsatisfiedLinkError: Can’t find dependent libraries by Oyoqui

Oyoqui — Wed, 23 Mar 2011 15:56:44 +0000

I have the same error and can fix it.

I make an JNI example and everithing works fine then I add that code (the same code and the same DLL) to my project and it don’t work it send me the same error that yours.

Then I check that the only modification was that I add the package instruction in my java code. I google it and see that I need to change the name of all my C methods to contain the new path of mi java files. You can use:

javah -jni MiJavaClass

and compare the generated .h file with your actual C code and if it is differente change it and create the new DLL and try to access it.

Comment on JNI (Java Native Interface): Exception in thread “main” java.lang.UnsatisfiedLinkError: Can’t find dependent libraries by Adil

Adil — Fri, 18 Mar 2011 02:11:11 +0000

Hey gotqn – I got the Solution.

Right Click Project Folder – Go to Properties -> Click C Compiler -> Tool Option and edit as follows: gcc-3.exe -Wl,–add-stdcall-alias, if you are using gcc-3.exe as compiler or just gcc.exe. You need to append “-Wl,–add-stdcall-alias” to the Compiler Tool Option and it wroked.

Then Clean and Build the Project and use the resultant .dll or .so in the Main.java program. Let me know if it helped:

This resolves the error:
Exception in thread “main” java.lang.UnsatisfiedLinkError: jnidemojava.Main.nativePrint()V
at jnidemojava.Main.nativePrint(Native Method)
at jnidemojava.Main.main(Main.java:22)

Comment on JNI (Java Native Interface): Exception in thread “main” java.lang.UnsatisfiedLinkError: Can’t find dependent libraries by Adil

Adil — Fri, 18 Mar 2011 00:57:01 +0000

My Case is same as gotqn case. I am using the example – “http://netbeans.org/kb/docs/cnd/beginning-jni-linux.html”. I reached till the end but stuck with the exception :

run:
Exception in thread “main” java.lang.UnsatisfiedLinkError: jnidemojava.Main.nativePrint()V
at jnidemojava.Main.nativePrint(Native Method)
at jnidemojava.Main.main(Main.java:22)
Java Result: 1
BUILD SUCCESSFUL (total time: 0 seconds)

Any help is highly appreciated.