Develop Reference

lwjgl UnsatisfiedLink error

I know this may seem like a duplicate but throughout the examples I have seem I must be doing something wrong still.
I am using Netbeans 8.0.
Exception in thread "main" java.lang.UnsatisfiedLinkError: no lwjgl in java.library.path
at java.lang.ClassLoader.loadLibrary(ClassLoader.java:1865)
at java.lang.Runtime.loadLibrary0(Runtime.java:870)
at java.lang.System.loadLibrary(System.java:1119)
at org.lwjgl.Sys$1.run(Sys.java:73)
at java.security.AccessController.doPrivileged(Native Method)
at org.lwjgl.Sys.doLoadLibrary(Sys.java:66)
at org.lwjgl.Sys.loadLibrary(Sys.java:95)
at org.lwjgl.Sys.<clinit>(Sys.java:112)
at org.lwjgl.opengl.Display.<clinit>(Display.java:132)
at org.newdawn.slick.AppGameContainer$1.run(AppGameContainer.java:39)
at java.security.AccessController.doPrivileged(Native Method)
at org.newdawn.slick.AppGameContainer.<clinit>(AppGameContainer.java:36)
at Engine.main(Engine.java:33)
Is my error which i know from research is just the path isn't set. I went into Properties > Libraries and i have a Library LWJGL which has multiple .jar's in it, including lwjgl.jar. I also have gone to Properties > Run which is where i believe my problem is. I have made a folder in C:\LWJGL\ that contains the lwjgl.jar aswell. My VM Options are -Djava.library.path=C:\LWJGL\.
I know i must be missing something here in regards to where is it looking for the native files or something? After reading through other posts i think my problem is the location of the native files.

java.library.path takes the path to the natives (extensions .dll, .so, .dylib), not the jar file. You have to point it directly to the folder where you have stored these files; it won't work when they are in a subfolder. The LWJGL zip file you downloaded will most likely contain a native folder that contains these files.

JAR file behaving differently in a different place in file system

I have project called test in Eclipse which I want to export into Runnable JAR file. During the process of exporting the project, when I choose as a location of JAR file the subfolder of test folder in file system, such as C:/.../test/App.jar, it will work. However, when I want to put it for example on my desktop, it will run but in a very limited look (some GUI components missing) and it throws a lot of exceptions saying something like that:
at java.awt.EventDispatchThread.run(Unknown Source) xception in thread "AWT-EventQueue-0" java.lang.NoClassDefFoundError: Could not initialize class com.sun.opengl.impl.windows.WindowsGLDrawableFactory
at java.lang.Class.forName0(Native Method)
at java.lang.Class.forName(Unknown Source)
at javax.media.opengl.GLDrawableFactory.getFactory(GLDrawableFactory.java}
What can be the problem? I assume it is not good that I have to specify my JAR file concretely into one folder in file system, it would become unuseful for any other potentional user.

Looks like the jar needs other jars to execute. In this case you would have to set the classpath before you execute the jar
This might help you with your problem.

Java Eclipse Error 'Source not found.'

I'm new to the programming world, and I am trying to do a simple program where I read and output a single number from a file. I believe I set everything up right in the code, do I need to do anything special with the location of the .txt file to make the program read the file?
package pack;
import java.util.*;
import java.io.*;
public class Ch2_PrExercise17 {
public static void main(String[] args)
throws FileNotFoundException{
Scanner inFile = new Scanner(new FileReader("inData.txt"));
int num1;
num1 = inFile.nextInt();
System.out.println(num1);
}
}
The exception I get is as follows;
Exception in thread "main" java.io.FileNotFoundException: inData.txt (The system cannot find the file specified)
at java.io.FileInputStream.open(Native Method)
at java.io.FileInputStream.<init>(Unknown Source)
at java.io.FileInputStream.<init>(Unknown Source)
at java.io.FileReader.<init>(Unknown Source)
at pack.Ch2_PrExercise17.main(Ch2_PrExercise17.java:8)

If Eclipse is really saying "source not found" then it is talking (at that point) about the source code of something.
If you are managing to run the class from Eclipse, then Eclipse has been able to compile it, so it knows where the source code is. So it must be the source code of something else. My best guess is that it can't find the source code for the standard Java class library, and that probably means that Eclipse is running on a JRE installation not a JDK installation.
(If my theory is correct, then the "source not found" text is embedded in the exception stacktrace ...)
It might also be a build problem but I doubt it, because if the class wasn't building you'd see error markers when you view the source file in eclipse, and Eclipse would complain when you tried to run it. Eclipse would also complain if the source file was in the wrong directory.
The second part of the problem is getting your application to find the "inData.txt" file. That should be simple. When you try to open a file with a relative pathname, the Java libraries will try to resolve the pathname relative to the application's "current directory". By default, when you run the application from Eclipse, this will be the directory your shell was in when you launched Eclipse; e.g.
$ cd /home/josh/somedir
$ eclipse &
... and the default current directory should be "/home/josh/somedir".
If the default current directory is not right, you have a number of options, including:
Change directory to the right one before launching Eclipse.
Use Eclipse's "Run Configurations" panel to select your application's launch configuration, and change the launcher's current directory setting.
Change the relative pathname in the source code to the correct absolute pathname for the file.
FOLLOW-UP
Exception in thread "main" java.io.FileNotFoundException: inData.txt (The system cannot find the file specified)
at java.io.FileInputStream.open(Native Method)
at java.io.FileInputStream.<init>(Unknown Source)
at java.io.FileInputStream.<init>(Unknown Source)
at java.io.FileReader.<init>(Unknown Source)
at pack.Ch2_PrExercise17.main(Ch2_PrExercise17.java:8)
The "Unknown Source" messages mean that the JVM (not Eclipse) cannot find the information it needs to produce a full stacktrace. You appear to be executing using an "rt.jar" file that has debug information stripped. You can ignore this issue, but to fix it you would need to look into what JVM is being uses, and why the "rt.jar" has no debug info.
The real problem is the FileNotFoundException exception, and my diagnosis of that (as above) stands. The "current directory" is not what it needs to be for that relative pathname to resolve. See above for possible solutions.

Trying to Use ESAPI But getting Error

I am trying to use ESAPI.jar for providing security to my web application.Basically I have just started using ESAPI.jar.
But problem is I am not able to run even a simple program using ESAPI.
The small code snippet is:
String clean = ESAPI.encoder().canonicalize("someString");
Randomizer r=ESAPI.randomizer();
System.out.println(r);
System.out.println(clean);
I get this error:
Attempting to load ESAPI.properties via file I/O.
Attempting to load ESAPI.properties as resource file via file I/O.
Not found in 'org.owasp.esapi.resources' directory or file not readable: D:\Eclipse-Workspace\Test\ESAPI.properties
Not found in SystemResource Directory/resourceDirectory: .esapi\ESAPI.properties
Not found in 'user.home' (C:\Documents and Settings\user.user) directory: C:\Documents and Settings\user.user\esapi\ESAPI.properties
Loading ESAPI.properties via file I/O failed. Exception was: java.io.FileNotFoundException
Attempting to load ESAPI.properties via the classpath.
ESAPI.properties could not be loaded by any means. Fail. Exception was: java.lang.IllegalArgumentException: Failed to load ESAPI.properties as a classloader resource.
Exception in thread "main" org.owasp.esapi.errors.ConfigurationException: java.lang.reflect.InvocationTargetException SecurityConfiguration class (org.owasp.esapi.reference.DefaultSecurityConfiguration) CTOR threw exception.
at org.owasp.esapi.util.ObjFactory.make(ObjFactory.java:129)
at org.owasp.esapi.ESAPI.securityConfiguration(ESAPI.java:184)
at org.owasp.esapi.ESAPI.encoder(ESAPI.java:99)
at org.rancore.testJasp.TestEsapi.main(TestEsapi.java:59)
Caused by: java.lang.reflect.InvocationTargetException
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
at java.lang.reflect.Method.invoke(Unknown Source)
at org.owasp.esapi.util.ObjFactory.make(ObjFactory.java:86)
... 3 more
Caused by: org.owasp.esapi.errors.ConfigurationException: ESAPI.properties could not be loaded by any means. Fail.
at org.owasp.esapi.reference.DefaultSecurityConfiguration.loadConfiguration(DefaultSecurityConfiguration.java:439)
at org.owasp.esapi.reference.DefaultSecurityConfiguration.<init>(DefaultSecurityConfiguration.java:227)
at org.owasp.esapi.reference.DefaultSecurityConfiguration.getInstance(DefaultSecurityConfiguration.java:75)
... 8 more
Caused by: java.lang.IllegalArgumentException: Failed to load ESAPI.properties as a classloader resource.
at org.owasp.esapi.reference.DefaultSecurityConfiguration.loadConfigurationFromClasspath(DefaultSecurityConfiguration.java:667)
at org.owasp.esapi.reference.DefaultSecurityConfiguration.loadConfiguration(DefaultSecurityConfiguration.java:436)
... 10 more
I have tried copying the 3 ESAPI properties files in my source folder and also configuring them on build path but still I have not succeeded. I have tried many permutations and combinations to no avail.
Please guide me.
The content of property file is:
# User Messages
Error.creating.randomizer=Error creating randomizer
This.is.test.message=This {0} is {1} a test {2} message
# Validation Messages
# Log Messages

The ESAPI.properties file should have more than 3 lines in it. See for example:
https://web.archive.org/web/20150904064147/http://code.google.com:80/p/owasp-esapi-java/source/browse/trunk/configuration/esapi/ESAPI.properties
In my experience the ESAPI.properties file either needs to be in the same folder as the esapi.jar or needs to be compiled into the jar in a resources directory.
/resources/ESAPI.properties
I believe that either one should work. If ESAPI does not find the file it one location it looks in others.
The code for that is here around line 620:
https://web.archive.org/web/20161005210258/http://code.google.com/p/owasp-esapi-java/source/browse/trunk/src/main/java/org/owasp/esapi/reference/DefaultSecurityConfiguration.java

I just struggled through this one myself.
I created a folder called esapi in my C:/users/myname/ directory and loaded up the ESAPI.properties, validation.properties, and the ESAPI-AccessControlPolicy.xml which got me past all the not finding files errors. ESAPI looks in several places for the files. I'm running Windows 7 64 bit by the way.
Then I had to update some of the jars. I should have done this from the beginning, but I didn't know it. I was getting this error:
AccessController class (org.owasp.esapi.reference.DefaultAccessController) CTOR threw exception.
for every jar that needed to be a newer version, like commons collections or log4j. At the bottom of the stack trace it would reference the offending jar.
When I added the newer jars from the esapi lib directory everything just worked!
I got this message at the end in my console:
ESAPI.accessController found: org.owasp.esapi.reference.DefaultAccessController#1cb8deef
Note: There is an ESAPI_en_US.properties file, but it's the one with only a few lines in it. Just use the file in: \esapi-2.1.0-dist\src\test\resources\esapi\ESAPI.properties. That is the full complete file.

After having this problem and looking at the installation documentation (esapi-x.x.x-dist\documentation\esapi4java-core-x-x-install-guide.pdf) I found a very useful section which detailed that the properties file can be anywhere, provided a vm flag (-Dorg.owasp.esapi.resources=path") points to a particular directory.
For example, if I stick the file in a "resources" folder at the root of my project directory, then the flag would be:
-Dorg.owasp.esapi.resources="path\to\project\root\resources"

The reference SecurityConfiguration manages all the settings used by the ESAPI in a single place. In this reference implementation, resources can be put in several locations, which are searched in the following order:
1) Inside a directory set with a call to SecurityConfiguration.setResourceDirectory( "C:\temp\resources" ).
2) Inside the System.getProperty( "org.owasp.esapi.resources" ) directory. You can set this on the java command line as follows (for example):
java -Dorg.owasp.esapi.resources="C:\temp\resources"
You may have to add this to the start-up script that starts your web server. For example, for Tomcat, in the "catalina" script that starts Tomcat, you can set the JAVA_OPTS variable to the -D string above.
3) Inside the System.getProperty( "user.home" ) + "/.esapi" directory (supported for backward compatibility) or inside the System.getProperty( "user.home" ) + "/esapi" directory.
4) The first ".esapi" or "esapi" directory on the classpath. (The former for backward compatibility.)

Can you put your file (with this name) in:
D:\Eclipse-Workspace\Test\ESAPI.properties
And show us the contents and exception again.

Extract the esapi jar
create a folder named resources under org.owasp.esapi
copy ESAPI.properties to the org.owasp.esapi.resources
Build and deploy

extract the jar
add properties file under resources folder.
initially getting same error, after updating properties file it worked for me

Thanks for providing the information
-Dorg.owasp.esapi.resources="path\to\project\root\resources"
This is a good source of information and has resolved my issue

I had the same problem too. I resolved it using a little bit of James Drinkard solution. What I basically did is created a new folder with name ESAPI and added ESAPI.properties file, Validation.properties, and the ESAPI-AccessControlPolicy.xml. And archived it into a jar file and added to the lib folder under WebContet/WEB-INF and build it to the path and it worked.
*To archive it into a jar file I used windows command move ESAPI ESAPI.jar

Look at the various scripts under 'src/examples/scripts' and they will show you one easy way to control where the ESAPI.properties files is found. (This is for ESAPI 2.0 or later.)
You will find a copy of the ESAPI.properties file will be under 'configuration/esapi'.

Why doesn't a runnable JAR exported from Eclipse work?

I have a project which runs fine from within Eclipse.
But when I export it to a runnable JAR with dependencies packed into it it won't run.
The error, when running the JAR from console is:
EDIT (didnt run it with -jar before):
INFO: Loading XML bean definitions from class path resource [applicationContext-
framework.xml]
Exception in thread "main" java.lang.reflect.InvocationTargetException
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
at java.lang.reflect.Method.invoke(Unknown Source)
at org.eclipse.jdt.internal.jarinjarloader.JarRsrcLoader.main(JarRsrcLoa
der.java:58)
Caused by: org.springframework.beans.factory.BeanDefinitionStoreException: IOExc
eption parsing XML document from class path resource [applicationContext-framewo
rk.xml]; nested exception is java.io.FileNotFoundException: class path resource
[applicationContext-framework.xml] cannot be opened because it does not exist
at org.springframework.beans.factory.xml.XmlBeanDefinitionReader.loadBea
nDefinitions(XmlBeanDefinitionReader.java:349)
at org.springframework.beans.factory.xml.XmlBeanDefinitionReader.loadBea
nDefinitions(XmlBeanDefinitionReader.java:310)
at org.springframework.beans.factory.support.AbstractBeanDefinitionReade
r.loadBeanDefinitions(AbstractBeanDefinitionReader.java:143)
at org.springframework.beans.factory.support.AbstractBeanDefinitionReade
r.loadBeanDefinitions(AbstractBeanDefinitionReader.java:178)
at org.springframework.beans.factory.support.AbstractBeanDefinitionReade
r.loadBeanDefinitions(AbstractBeanDefinitionReader.java:149)
at org.springframework.beans.factory.support.AbstractBeanDefinitionReade
r.loadBeanDefinitions(AbstractBeanDefinitionReader.java:212)
at org.springframework.context.support.AbstractXmlApplicationContext.loa
dBeanDefinitions(AbstractXmlApplicationContext.java:113)
at org.springframework.context.support.AbstractXmlApplicationContext.loa
dBeanDefinitions(AbstractXmlApplicationContext.java:80)
at org.springframework.context.support.AbstractRefreshableApplicationCon
text.refreshBeanFactory(AbstractRefreshableApplicationContext.java:123)
at org.springframework.context.support.AbstractApplicationContext.obtain
FreshBeanFactory(AbstractApplicationContext.java:422)
at org.springframework.context.support.AbstractApplicationContext.refres
h(AbstractApplicationContext.java:352)
at org.springframework.context.support.ClassPathXmlApplicationContext.<i
nit>(ClassPathXmlApplicationContext.java:139)
at org.springframework.context.support.ClassPathXmlApplicationContext.<i
nit>(ClassPathXmlApplicationContext.java:93)
at com.horstmann.violet.UMLEditorApplication.getApplicationContext(UMLEd
itorApplication.java:111)
at com.horstmann.violet.UMLEditorApplication.<init>(UMLEditorApplication
.java:94)
at com.horstmann.violet.UMLEditorApplication.main(UMLEditorApplication.j
ava:84)
... 5 more
Caused by: java.io.FileNotFoundException: class path resource [applicationContex
t-framework.xml] cannot be opened because it does not exist
at org.springframework.core.io.ClassPathResource.getInputStream(ClassPat
hResource.java:143)
at org.springframework.beans.factory.xml.XmlBeanDefinitionReader.loadBea
nDefinitions(XmlBeanDefinitionReader.java:336)
... 20 more
but the file is in resources/ from the JAR-root.
What am I missing or doing wrong?

Try to click on the option “Package required libraries into generated JAR”.
A JAR file is a regular compressed archive. Make sure that all the required libraries in your MANIFEST.MF file are present within the generated file.

Try to run the JAR from the command line - it will most likely display a useful error message.
There probably are some dependencies that eclipse doesn't know about or which aren't configured correctly within it, and are therefore missing from the JAR.
In general, it's not a good idea to rely on IDE functionality to produce deliverables - it depends on too many hidden factors and can't be automated for a build server. Any project that's beyond the experimental/toy stage should have an automated build via Ant or Maven.

The message
Could not find the main class: violet-0.21.2-SVN.jar. Program will exit.
indicates that you have gotten the Main-Class: MyPackage.MyClass line wrong in the Manifest when packaging together the jar file. You need to give the full name of the class with the main(String[] args) method.
See http://download.oracle.com/javase/tutorial/deployment/jar/appman.html for details.