I am trying to use the classmexer to profile some instance memory runtime.I have set the following as Generic JVM arguments in Webshpere 6.1:
-javaagent:c:/Downloads/classmexer.jar
Following exception is thrown:
Caused by: java.lang.UnsatisfiedLinkError: sun/instrument/InstrumentationImpl.getObjectSize0(Ljava/lang/Object;)J
at sun.instrument.InstrumentationImpl.getObjectSize(InstrumentationImpl.java:116)
at com.javamex.classmexer.MemoryUtil.deepMemoryUsageOf0(MemoryUtil.java:178)
It works fine standalone though.
Any suggestions?
You have to copy the dependencies and classmexer to shared library directory, probably AppServer/lib/ext. The Exception is thrown because WAS doesn't search for everything required from the PATH set in your shell. That is why it still works as standalone.
Related
Whenever i try to execute a .jar file containing my code, it throws NoClassDefFoundError: kotlin/io/ConsoleKt. So far i haven't found a solution to this problem but I think the problem has something to do with the readLine() function I have in the script but I don't know what. The weird thing is that my code ran perfectly in Intellij itself but once I built it started throwing this exception that never happened outside of IntelliJ. The specific error is:
Exception in thread "main" java.lang.NoClassDefFoundError: kotlin/io/ConsoleKt
at com.quantumzizo.calcualtorkotlin.DisplayKt.main(Display.kt:23)
at com.quantumzizo.calcualtorkotlin.DisplayKt.main(Display.kt)
Caused by: java.lang.ClassNotFoundException: kotlin.io.ConsoleKt
at java.base/jdk.internal.loader.BuiltinClassLoader.loadClass(BuiltinClassLoader.java:641)
at java.base/jdk.internal.loader.ClassLoaders$AppClassLoader.loadClass(ClassLoaders.java:188)
at java.base/java.lang.ClassLoader.loadClass(ClassLoader.java:520)
... 2 more
Is there solution that can solve this?
So it turns out all I had to do was build a fat jar with all the dependencies. I used the Gradle plugin Shadow to make a fat jar.
Props to #Endzeit for suggesting that I use it.
I am trying to setup Agora recording setup, I have complied the samples provided in bundle and trying to run them. I am getting following exception where code is unable to find recording.dll
Exception in thread "main" java.lang.UnsatisfiedLinkError: no recording in
java.library.path
at java.lang.ClassLoader.loadLibrary(ClassLoader.java:1867)
at java.lang.Runtime.loadLibrary0(Runtime.java:870)
at java.lang.System.loadLibrary(System.java:1122)
at io.agora.recording.RecordingSDK.<clinit>(RecordingSDK.java:24)
This doesn't look like an Agora error rather a Java error. The function is not finding a dependent method in its link path, you can check which function its failing on, and then check if you have a path mismatch in your compilation path
You can do java -XshowSettings:properties -version and then look at the value of java.library.path to see the library paths.
We are facing a VerifyError in our application while deploying to WAS environment. The following is the exception:
Error 500: org.springframework.web.util.NestedServletException: Handler processing failed; nested exception is java.lang.VerifyError: JVMVRFY012 stack shape inconsistent; class=com/org/jaxb/Input_JAXB_Deserialization_Stub, method=write(ILjava/lang/Object;)V, pc=356
We are still trying to identify the issue, but all efforts not going well. Is there any way that the libraries used in run time is good in bytecode compatibility?. For example, we can add all the libraries and run the byte code verification.
Got the following stacktrace when launching gradle 1.1, anyone know how to resolve them:
Exception in thread "main" java.lang.NullPointerException
at org.gradle.wrapper.BootstrapMainStarter.findLauncherJar(BootstrapMainStarter.java:37)
at org.gradle.wrapper.BootstrapMainStarter.start(BootstrapMainStarter.java:28)
at org.gradle.wrapper.WrapperExecutor.execute(WrapperExecutor.java:130)
at org.gradle.wrapper.GradleWrapperMain.main(GradleWrapperMain.java:47)
I think the automatic unzip of the dists/gradle-1.1-bin/13d7lnhcrghv2i5e54el41jpgr/gradle-1.1-bin.zip might be failing. I checked permissions and that I have access to that directory.
If I unzip manually, then I get the following error:
Exception in thread "main" java.lang.RuntimeException: Gradle distribution 'http://services.gradle.org/distributions/gradle-1.1-bin.zip' contains too many directories. Expected to find exactly 1 directory.
at org.gradle.wrapper.Install.createDist(Install.java:73)
at org.gradle.wrapper.WrapperExecutor.execute(WrapperExecutor.java:129)
at org.gradle.wrapper.GradleWrapperMain.main(GradleWrapperMain.java:47)
I did a google search for gradle nullpointerexception and it mentioned the JAVA_HOME needs to be set for compiling, but I've already checked it is set correctly and been able to compile stuff with ant in that environment.
I was getting exactly same error and I changed the version of gradle that I was using. Inside my gradle-wrapper.properties, changed version 2.4 to 2.2.1 and error is gone.
My code is compiled on OSX and it works fine(compiler version 1.6). But when I copy it to a remote ubuntu. I can not run it.
When I run
java TPCC.class
I got exception like this.(By the way TPCC.class is in default package)
Exception in thread "main" java.lang.NoClassDefFoundError: TPCC/class
Caused by: java.lang.ClassNotFoundException: TPCC.class
at java.net.URLClassLoader$1.run(URLClassLoader.java:202)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(URLClassLoader.java:190)
at java.lang.ClassLoader.loadClass(ClassLoader.java:307)
at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:301)
at java.lang.ClassLoader.loadClass(ClassLoader.java:248)
Could not find the main class: TPCC.class. Program will exit.
And my java version on ubuntu:
java version "1.6.0_21"
Java(TM) SE Runtime Environment (build 1.6.0_21-b06)
Java HotSpot(TM) Client VM (build 17.0-b16, mixed mode, sharing)
It's also 1.6 and I think it fits the compiled binary. How can I fix this problem?
The problem is in the way you run the program. Compiled java called
ClassName.java
will be ClassName.class. You should run it like
"java ClassName"
. You shouldn't run it as
"java ClassName.class"
What happens here is this. When you run it as java ClassName.class, JVM try to look for ClassName called "class" in the package called "ClassName" that does not exist. So it will throw NoClassDefFoundError.
This is an invocation problem as the error shows: java should be used and not the filename of the class.
The error message tries to say you this by stating that "TPCC/class" is not found.
(sorry for first adding comment, used the wrong field)
Specify the classpath when invoking java:
java -cp <path-to-jar> TPCC