We have a JavaWebStart application, which allows to scan images and write them to a file. All works fine but today I've got an exception from a customer, which I cannot understand.
java.lang.UnsatisfiedLinkError: no jpeg in java.library.path
at java.lang.ClassLoader.loadLibrary(Unknown Source)
at java.lang.Runtime.loadLibrary0(Unknown Source)
at java.lang.System.loadLibrary(Unknown Source)
at com.sun.imageio.plugins.jpeg.JPEGImageWriter$1.run(Unknown Source)
at com.sun.imageio.plugins.jpeg.JPEGImageWriter$1.run(Unknown Source)
at java.security.AccessController.doPrivileged(Native Method)
at com.sun.imageio.plugins.jpeg.JPEGImageWriter.(Unknown Source)
at com.sun.imageio.plugins.jpeg.JPEGImageWriterSpi.createWriterInstance(Unknown Source)
at javax.imageio.spi.ImageWriterSpi.createWriterInstance(Unknown Source)
at javax.imageio.ImageIO$ImageWriterIterator.next(Unknown Source)
at javax.imageio.ImageIO$ImageWriterIterator.next(Unknown Source)
at de.eurodata.commons.scan.domain.ScanUtils.writeImageToFile(ScanUtils.java:81)
This exception is occured on Win7 x86. I've searched for this exception using Google but found only some irrelevant (Linux, Oracle 9i) or unanswered posts.
My question is: can I prevent this problem? Probably another pure Java jpeg plugin for ImageIO (if exists and stable)?
Related
I am trying to connect a java program to a database. I have sajdbc4.jar in the build path and it worked before, but now I keep getting this error when I try to make the connection:
Exception in thread "main" java.lang.UnsatisfiedLinkError: no dbjdbc12 in java.library.path
at java.lang.ClassLoader.loadLibrary(Unknown Source)
at java.lang.Runtime.loadLibrary0(Unknown Source)
at java.lang.System.loadLibrary(Unknown Source)
at sybase.jdbc4.sqlanywhere.IDriver.try_load(IDriver.java:455)
at sybase.jdbc4.sqlanywhere.IDriver.(IDriver.java:396)
at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
at sun.reflect.NativeConstructorAccessorImpl.newInstance(Unknown Source)
at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(Unknown Source)
at java.lang.reflect.Constructor.newInstance(Unknown Source)
at java.lang.Class.newInstance(Unknown Source)
at java.util.ServiceLoader$LazyIterator.nextService(Unknown Source)
at java.util.ServiceLoader$LazyIterator.next(Unknown Source)
at java.util.ServiceLoader$1.next(Unknown Source)
at java.sql.DriverManager$2.run(Unknown Source)
at java.sql.DriverManager$2.run(Unknown Source)
at java.security.AccessController.doPrivileged(Native Method)
at java.sql.DriverManager.loadInitialDrivers(Unknown Source)
at java.sql.DriverManager.(Unknown Source)
at Main.main(Main.java:26)
Can someome please help me? Can't find anything abount this issue online.
For windows find this file in your computer:
dbjdbc12.dll
For linux find this file:
libdbjdbc12.so
Put the location of this file on the java.library.path either with a command line option:
java -Djava.library.path=DIRECTORYWITHDLL ...
or using System.setProperty in your code:
System.setProperty("java.library.path","DIRECTORYWITHDLL");
For Linux, you need to add the dbjdbc12.so to java.library.path using:
export LD_LIBRARY_PATH=$LD_LIBRARY_PATH:/some/path/that/contain/dbjdbc12.so
this is the same for dbjdbc16 also.
Since, sybase.jdbc4 driver need this file. Please refer- https://blogs.sap.com/2014/05/02/connecting-to-sql-anywhere-using-jdbc-2/#:~:text=jar%20is%20in%20the%20classpath,Connection%20con%20%3D%20DriverManager.
Similarly, for windows add dbjdbc12.dll file.
For SQL Anywhere 17 libdbjdbc17.so was not suffiecient, it was then complaning about the next file:
failed: java.lang.UnsatisfiedLinkError: /usr/local/tomcat/native-jni-lib/libdbjdbc17.so: libdbtasks17_r.so: cannot open shared object file: No such file or directory
So I ended up adding all files from the lib64 folder from the Database client (after I installed it on some other linux machine) to my tomcat lib path and it worked.
My first time playing around with JOGL, and I get this:
Exception in thread "main" java.lang.UnsatisfiedLinkError: no gluegen-rt in java.library.path
at java.lang.ClassLoader.loadLibrary(Unknown Source)
at java.lang.Runtime.loadLibrary0(Unknown Source)
at java.lang.System.loadLibrary(Unknown Source)
at com.jogamp.gluegen.runtime.NativeLibLoader.loadLibraryInternal(NativeLibLoader.java:117)
at com.jogamp.gluegen.runtime.NativeLibLoader.access$000(NativeLibLoader.java:51)
at com.jogamp.gluegen.runtime.NativeLibLoader$1.run(NativeLibLoader.java:70)
at java.security.AccessController.doPrivileged(Native Method)
at com.jogamp.gluegen.runtime.NativeLibLoader.loadGlueGenRT(NativeLibLoader.java:68)
at com.jogamp.common.jvm.JVMUtil.<clinit>(JVMUtil.java:56)
at javax.media.opengl.GLProfile.<clinit>(GLProfile.java:1145)
at tut.Main.main(Main.java:10)
I looked around and found nothing on how to add gluegen-rt or anything else to java.library.path.
See the answer at "How to set the java.library.path from Eclipse". Basically, there is a project configuration for "Native library location".
I have the .java, .class, .cpp, .h files: http://www.ibm.com/developerworks/java/tutorials/j-jni/section2.html
After reading TotalFrickinRockstarFromMars's comment, I tried setting up classpath.
What's wrong?
Sample1.dll IS there.
Text version:
F:\workspace\JavaJNIProj\src>java Sample1
Exception in thread "main" java.lang.UnsatisfiedLinkError: F:\workspace\JavaJNIProj\src\Sample1.dll: Can't find dependent libraries
at java.lang.ClassLoader$NativeLibrary.load(Native Method)
at java.lang.ClassLoader.loadLibrary0(Unknown Source)
at java.lang.ClassLoader.loadLibrary(Unknown Source)
at java.lang.Runtime.loadLibrary0(Unknown Source)
at java.lang.System.loadLibrary(Unknown Source)
at Sample1.main(Sample1.java:10)
It looks like you miss some dependency DLLs. You can download DependencyWalker http://www.dependencywalker.com/
This supposed to help you to find it.
Any fix to avoid this exception while starting WLDF Console? Thanks.
java.lang.ClassFormatError: Incompatible magic value 218762506 in class file com/bea/diagnostics/dashboard/ChartPanelApplet
at java.lang.ClassLoader.defineClass1(Native Method)
at java.lang.ClassLoader.defineClassCond(Unknown Source)
at java.lang.ClassLoader.defineClass(Unknown Source)
at java.security.SecureClassLoader.defineClass(Unknown Source)
at sun.plugin2.applet.Applet2ClassLoader.findClass(Unknown Source)
at sun.plugin2.applet.Plugin2ClassLoader.loadClass0(Unknown Source)
at sun.plugin2.applet.Plugin2ClassLoader.loadClass(Unknown Source)
at sun.plugin2.applet.Plugin2ClassLoader.loadClass(Unknown Source)
at java.lang.ClassLoader.loadClass(Unknown Source)
at sun.plugin2.applet.Plugin2ClassLoader.loadCode(Unknown Source)
at sun.plugin2.applet.Plugin2Manager.createApplet(Unknown Source)
at sun.plugin2.applet.Plugin2Manager$AppletExecutionRunnable.run(Unknown Source)
at java.lang.Thread.run(Unknown Source)
Exception: java.lang.ClassFormatError: Incompatible magic value 218762506 in class file com/bea/diagnostics/dashboard/ChartPanelApplet
There is an earlier Sun bug report on this issue, with JDK 1.4
you are mostly running JDK 1.6 but take a look at the bug report.
Short Summary (gleaned from this forum) :
The Java plug-in of your browser tries
to get some .class file from the
current location (your server) and
fails because your server returns some
custom 404 page. Let's try to check
the Java console to see what really is
requested. Please, run the Java
console, set the trace level to 5
(highest level).
Enable the Java console on Windows for IE browser and see if it gives a detail on which URL is giving the 404 or some other error.
Further Reading
Oracle forum question
I need Vecmath, so I went to Oracle to get the latest version of Java 3D. I didn't see a place to download a JAR, but it had an installer. I downloaded and ran it. I assume that the installer added the JAR as a JDK extension
I restarted Eclipse, and it sees that VecMath is present. However, it still complains:
Access restriction: The type Vector3f
is not accessible due to restriction
on required library C:\Program
Files\Java\jre6\lib\ext\vecmath.jar
Bummer. I am able to change it from a compiler error to a warning, but it crashes as soon as I try to run it. Although, I'm using this in conjunction with OpenGL, and the crash could have nothing to do with vecmath. I'm not sure. Here is the exception:
Exception in thread "Timer-0" javax.media.opengl.GLException: java.lang.RuntimeException: javax.imageio.IIOException: Can't read input file!
at com.jogamp.opengl.impl.awt.AWTThreadingPlugin.invokeOnOpenGLThread(AWTThreadingPlugin.java:101)
at com.jogamp.opengl.impl.ThreadingImpl.invokeOnOpenGLThread(ThreadingImpl.java:192)
at javax.media.opengl.Threading.invokeOnOpenGLThread(Threading.java:164)
at javax.media.opengl.awt.GLCanvas.maybeDoSingleThreadedWorkaround(GLCanvas.java:591)
at javax.media.opengl.awt.GLCanvas.display(GLCanvas.java:301)
at com.jogamp.opengl.util.AnimatorImpl.display(AnimatorImpl.java:50)
at com.jogamp.opengl.util.Animator.display(Animator.java:154)
at com.jogamp.opengl.util.FPSAnimator$1.run(FPSAnimator.java:95)
at java.util.TimerThread.mainLoop(Unknown Source)
at java.util.TimerThread.run(Unknown Source)
Caused by: java.lang.RuntimeException: javax.imageio.IIOException: Can't read input file!
at cs4620.nth23.assignment1.GraphicsApp.loadTextures(GraphicsApp.java:98)
at cs4620.nth23.assignment1.GraphicsApp.init(GraphicsApp.java:65)
at com.jogamp.opengl.impl.GLDrawableHelper.init(GLDrawableHelper.java:111)
at com.jogamp.opengl.impl.GLDrawableHelper.init(GLDrawableHelper.java:124)
at javax.media.opengl.awt.GLCanvas$InitAction.run(GLCanvas.java:643)
at com.jogamp.opengl.impl.GLDrawableHelper.invokeGL(GLDrawableHelper.java:273)
at javax.media.opengl.awt.GLCanvas$DisplayOnEventDispatchThreadAction.run(GLCanvas.java:674)
at java.awt.event.InvocationEvent.dispatch(Unknown Source)
at java.awt.EventQueue.dispatchEvent(Unknown Source)
at java.awt.EventDispatchThread.pumpOneEventForFilters(Unknown Source)
at java.awt.EventDispatchThread.pumpEventsForFilter(Unknown Source)
at java.awt.EventDispatchThread.pumpEventsForHierarchy(Unknown Source)
at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
at java.awt.EventDispatchThread.run(Unknown Source)
Caused by: javax.imageio.IIOException: Can't read input file!
at javax.imageio.ImageIO.read(Unknown Source)
at cs4620.nth23.assignment1.GraphicsApp.loadTextures(GraphicsApp.java:95)
... 14 more
I'm using:
x84 Windows 7
Eclipse Helios
JavaSE-1.6
JDK 1.6
What am I doing wrong here?
The exception was caused by being unable to find a file referenced in the code - it has nothing to do with VecMath.
The app runs fine, despite the access restrictions. I don't know if it'll come back to bite me later or what.