I am trying to compile openjdk-7 source code on Ubuntu 14.04:
export LANG=C ALT_BOOTDIR=/usr
make all
I saw some errors like:
symbol: class ClassNotFound
location: class CompoundType
../../../../src/share/classes/sun/rmi/rmic/iiop/CompoundType.java:1299: error: cannot find symbol
These missing classes are all in the package named sun.tools.java. I suspect these are some nonstandard libs required by the jdk build process. However I cannot find relevant information in online build tutorials. So what are these missing classes and how I can fix them?
Thanks.
Some applications need the tools.jar from the JDK which has these packages. This is often used for runtime compilation of generated code. Add this to the class path from your JDK.
Note: these are not package you would normally pass via RMI however. I would have a look at the classes to see why it would need to do this.
Related
This is very close to what I'm trying to accomplish. How to compile and run kotlin program in command line with external java library
I really want to learn how to compile and run simple code that includes libraries but am getting a bit lost when it comes to including classpaths.
I’m currently trying to compile and run
import kotlinx.serialization.*
import kotlinx.serialization.json.*
#Serializable
data class Project(val name: String, val language: String)
fun main() {
// Serializing objects
val data = Project("kotlinx.serialization", "Kotlin")
val string = Json.encodeToString(data)
println(string) // {"name":"kotlinx.serialization","language":"Kotlin"}
// Deserializing back into objects
val obj = Json.decodeFromString<Project>(string)
println(obj) // Project(name=kotlinx.serialization, language=Kotlin)
}
using
kotlinc -cp "C:\PROGRA~1\Kotlin\lib\kotlinx-serialization-runtime-1.0-M1-1.4.0-rc.jar" main.kt
to compile with this compiler
https://blog.jetbrains.com/kotlin/2020/07/kotlin-1-4-rc-released/
allowed lib at bottom of the article
that's where kotlinx-serialization-runtime-1.0-M1-1.4.0-rc.jar is coming from. I chose this runtime jar because when I use the new kotlin 4.0.21 compiler it requires the kotlin-serialization-runtime-1.0.1.jar which you need to build yourself but when I download the source and run gradle build it doesn't seem to get generated (separate problem but would love to know how to build the runtime jar myself)
when I try and run I get
Exception in thread "main" java.lang.NoClassDefFoundError: kotlinx/serialization/json/Json
at MainKt.main(main.kt:12)
at MainKt.main(main.kt)
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:64)
at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.base/java.lang.reflect.Method.invoke(Method.java:564)
at org.jetbrains.kotlin.runner.AbstractRunner.run(runners.kt:64)
at org.jetbrains.kotlin.runner.Main.run(Main.kt:149)
at org.jetbrains.kotlin.runner.Main.main(Main.kt:159)
Caused by: java.lang.ClassNotFoundException: kotlinx.serialization.json.Json
at java.base/java.net.URLClassLoader.findClass(URLClassLoader.java:435)
at java.base/java.lang.ClassLoader.loadClass(ClassLoader.java:589)
at java.base/java.lang.ClassLoader.loadClass(ClassLoader.java:522)
... 9 more
I know I need to include a classpath when I run
kotlin MainKt
but have tried everything with no success
I've tried many different combinations of things including
compiling with and without
-Xplugin="C:\PROGRA~1\Kotlin\lib\kotlinx-serialization-compiler-plugin.jar doesn't seem to make a difference so I left it off.
I have tried compiling to both a java .jar as well as a kotlin .class file both seem to need classpath information at runtime. I would rather compile to a kotlin .class and keep java out of this until I really need it. This way I can learn what java is really doing in my application.
I guess what I really want to know is how one can determine what is required at runtime for an executable to run. I found this site which helps show dependencies but is for older versions of kotlin https://kotlin.binarydoc.org/org.jetbrains.kotlin/kotlin-compiler-dist/1.3.71/package?package=kotlinx.serialization
I’ve also been peaking into the .class files using https://github.com/google/android-classyshark
and
https://github.com/borisf/classyshark-bytecode-viewer
but still when people tell others, on StackOverflow, what classpath they need to use to solve their problem it seems like magic. Can someone out there teach me how to fish without gradle?
p.s. If anyone has any good resources on learning the internals of how gradle is building the project. I've looked here a bit https://docs.gradle.org/current/userguide/userguide.pdf but didn’t seem to help. maybe I missed something. Also, this page https://kotlinlang.org/docs/reference/serialization.html#example-json-serialization seems to have what I need but can't seem to transfer that to what the command line needs.
dependencies {
implementation("org.jetbrains.kotlinx:kotlinx-serialization-json:1.0.1")
}
what does this mean? I think this is referring to this https://github.com/Kotlin/kotlinx.serialization
but then how can I build what I need from this repo and use it to allow my application to know where its runtime dependencies are? ugh. I really wanted to figure all this out myself, but I must kneel to the internet gods for this one. Sorry, my post is a mess. I love to learn.
It took some time but I was able to build and run the serialization sample found at https://github.com/Kotlin/kotlinx.serialization on the command line using the current kotlinc compiler and the kotlinx.serializtion.1.0.1 library.
Here are the direct links to the compilers and libs
kotlinc and kotlinc-native v1.4.20
https://github.com/JetBrains/kotlin/releases/tag/v1.4.20
Kotlinx.serialization v1.0.1
https://github.com/Kotlin/kotlinx.serialization/releases/tag/v1.0.1
These both can also be found in the 1.4.20 releases blog post under the section titled How To Update:
https://blog.jetbrains.com/kotlin/2020/11/kotlin-1-4-20-released/
Setting Up Katlin’s .jar Libraries
After updating my path to point to the new compilers I still needed to build the serialization libs. This was as simple as running gradle build in the root directory of the unzipped kotlinx-serialization-1.0.1 folder. Make sure to set your JAVA-HOME system variable before you do this or it won’t work.
Once it's built you need to grab both the kotlinx-serialization-json-jvm-SNAPSHOT-1.0.1.jar and the kotlinx-serialization-core-jvm-SNAPSHOT-1.0.1.jar files and move them into the project directory. This definitely confused me because I had found a runtime lib for kotlinx serialization on the MVN repository site that was one jar file, but I wasn't seeing it after building the 1.0.1 libraries. Once I extracted the 1.0.1 runtime jar I found online, by renaming the .jar to .zip, it became apparent that it consisted of both the contents of the core and json jars. Don’t use the kotlinx-serialization-1.0.1-SNAPSHOT.jar. This jar only contains a blank MANIFEST.ms file. You can find the kotlinx-serialization-core-jvm-1.0.1-SNAPSHOT.jar in the kotlinx.serialization-1.0.1\core\build\libs folder and the kotlinx-serialization-json-jvm-1.0.1-SNAPSHOT.jar in the kotlinx.serialization-1.0.1\formats\json\build\libs folder. anyways.
Compiling Your .jar Library
once you have the jars in your project folder you can build your project
I included my cleanbuildandrun.sh shell script down below for easy reference.
My first attempt 1) was to try and build the project without compiling it to a .jar library file. This was a complete failure. I got it to compile but running the project proved much harder. I was unable to tell kotlin where the libraries were at runtime. I tried so many different things Including trying to point it to a manifest file I created but nothing seemed to work. It seems you need to build an executable jar in order to make this work. which brings me to my second try 2). This is where I found more success.
Attempt 2)
First you need to include the kotlinx-serialization-compiler-plugin.jar using the "-Xplugin" compiler flag. My understanding is that plugins are used to define annotations to the compiler like #Serializable. You can find this jar file in the lib folder inside the compiler you just downloaded. I copied this into my projects /lib folder next to the other jar files to make things self-contained and portable.
Next you need to tell the compiler where to find the library classes you want to access using the "-classpath" or "-cp" compiler flag.
Make sure to include kotlin runtime libraries using the "-include-runtime" compiler flag. This will bundle the kotlin standard class libraries within your jar so you don’t need to point at them during runtime.
Last direct the compiler to build a jar file by providing the -d compiler flag with the name and extension of your soon to be .jar file. That’s it, your off compiling.
Example Shell Script:
#!/bin/bash
sh clean.sh
case $1 in
1) # Comming Soon
kotlinc -verbose -Xplugin="lib\kotlinx-serialization-compiler-plugin.jar" \
-cp "lib\kotlinx-serialization-json-jvm-1.0.1.jar;lib\kotlinx-serialization-core-jvm-1.0.1.jar" \
main.kt
;;
2) # Working
kotlinc main.kt -Xplugin="lib\kotlinx-serialization-compiler-plugin.jar" \
-cp "lib\kotlinx-serialization-json-jvm-1.0.1.jar;lib\kotlinx-serialization-core-jvm-1.0.1.jar" \
-include-runtime -d main.jar
jar ufm Main.jar ManifestAdditions.txt lib
kotlin main.jar
;;
3) # Comming Soon
kotlinc-native main.kt -verbose -Xplugin="lib\kotlinx-serialization-compiler-plugin.jar" \
-cp "lib\kotlinx-serialization-json-jvm-1.0.1.jar;lib\kotlinx-serialization-core-jvm-1.0.1.jar" \
-manifest ManifestAddition.txt -o main
;;
esac
Running your .jar Library
By default, when you compiled the jar it created a MANIFEST.ms file that it uses to tell your jar library where the entry point is. which would be enough if we weren’t using additional libraries in our application. So next we need to add those libraries to the jar file we compiled while at the same time updating its MANIFEST.ms file to tell it where those libraries are within that jar file. We can use the cli tool jar to accomplish this. With the command:
jar ufm Main.jar ManifestAdditions.txt lib
we are able to update the current jar file.
u - tells jar we want to update an existing jar file
f - indicates that we are providing the jar file we want to update on the cmd line
m - indicates that we will be providing the manifest file
The Manifest .txt file should look like this:
Main-Class: MainKt
Class-Path: lib\kotlinx-serialization-core-jvm-1.0.1.jar lib\kotlinx-serialization-json-jvm-1.0.1.jar
Make sure to add a new line at the end of the file or it won’t parse the Class-Path.
That’s it. Now we have an executable jar file that we can use to run our serialization code on the command line:
kotlin main.jar
should output:
{"name":"kotlinx.serialization","language":"Kotlin"}
Project(name=kotlinx.serialization, language=Kotlin)
Post Mark
I would really like to turn this answer into a blog post that explains how to use the kotlin compiler, with libraries, on the command line. The information is out there but it seems to be scattered. I would like to include how to compile and run without using jar files, if that’s even possible, as well as how to compile and run using the native compiler. If anyone can help fill in these gaps it would be much appreciated. I think this information could help others learn how to set up simple test environments so they can better understand the functionality of these libs without having to set up a build script. This will be my first attempt at creating a tutorial type blog post so any information would really help.
I am new in Cmake thats why I will write story detailed.
I trying to build one lib under windows and that lib depends on other lib. (libmatroska depends on libebml) source libmatroska and source libebml
Fortunately both libs can be build with cmake.
I built libebml successfuly with cmake. And also built binaries using VS studio.
Then I tried to deal with libmatroska:
During first try I got:
Could not find a package configuration file provided by "Ebml" (requested
version 1.3.5) with any of the following names:
EbmlConfig.cmake
ebml-config.cmake
at libebml sources I found EbmlConfig.cmake.
I Type export Ebml_DIR=D:/work/mkv/libebml and try again.
On second run I got:
Could not find a configuration file for package "Ebml" that is compatible
with requested version "1.3.5".
The following configuration files were considered but not accepted:
D:/work/mkv/libebml/EbmlConfig.cmake, version: unknown
And after few hours I am still stuck on it.
I can't understand root of this error.
Is it something wrong with EbmlConfig.cmake?
... or maybe I specified path to wrong *.cmake file?
... or I need to install libebml some how before handling libmatroska?
I will be happy for any clue.
UPDATE:
Here EbmlConfig.cmake context:
include(${CMAKE_CURRENT_LIST_DIR}/EbmlTargets.cmake)
Where EbmlTargets.cmake is file generated while Ebml compilation.
I tried to change path inside EbmlConfig.cmake to global path. But got same error.
Also when I delete context of EbmlConfig.cmake I still have same error.
It looks like "default error when something goes wrong"
While trying to use ProGuard (5.3.2) to obfuscate a Automation framework getting lot of warnings i've resolved most of the warnings by adding respective library's but could not able to resolve below warnings. i have tried by adding com.hibernate-core jar but still getting same.
Warning: com.test.utils.DBOperations: can't find referenced method 'org.hibernate.Session openSession()' in library class org.hibernate.SessionFactory
Warning: com.test.utils.DBOperations: can't find referenced method 'void close()' in library class org.hibernate.Session
I have tried searching for a solution but the answer would always be for an android application.
I have find there is an option that I can select inside the Proguard GUI. Please check the picture:
This method is good for obfuscation the class name or method name inside the .jar file.
If you want to ignore the warning when creating from android studio or eclipse... just put some "-dontwarn" or "-ignorewarning" command inside the proguard-rule.pro file.
I am trying to use a method from a DLL in a OSGI-bundle. The DLL gets loaded correctly in OSGI, but I still get an java unsatisfied link error, the native method is not found!
When deployed standalone in Java only (no OSGI), the DLL gets loaded and run perfectly.
Here's what I did:
I generated a JNI bridge to my C++ compiled DLL through SWIG.
I specified the package name when calling swig.
I declared the dll inclusion in my Maven pom.xml xml element, which generates a correct Manifest file.
Loading of the DLL libraries is done without any errors / warnings
What truly puzzles me is that the symbols in the dll seem to not be found:
java.lang.UnsatisfiedLinkError: com.bmw.corona.components.sample.impl.generated.AdasDeconstructorJNI.swig_module_init()V
The problem is when coupling it with OSGI, I'm guessing somewhere in OSGI's ClassLoader.
The method in the dll seems to have a the correct signature :
_Java_com_bmw_corona_components_sample_impl_generated_AdasDeconstructorJNI_swig_1module_1init#8
with the following prototype in the generated SWIG file:
SWIGEXPORT void JNICALL Java_AdasDeconstructorJNI_swig_1module_1init(JNIEnv *jenv, jclass jcls)
I was triple-sure to check that the Manifest includes the Bundle Native instruction.
What am I doing wrong?
You may want to consult this wiki article: http://wiki.osgi.org/wiki/Dependencies_In_Native_Code
It is hard to tell from your description, but it sound like you have 2 native libs. One with the JNI entry points and the other with the real native function. The above wiki article discusses the dependencies from the JNI native lib to other native libs.
The problem was twofold. First, the methods weren't found do to Visual Studio 2010's method name mangling. I added a linker directive :
#pragma comment(linker, "/EXPORT:__Java_com_bmw_corona_components_sample_impl_AdasDeconstructorJNI_swig_module_init=_Java_com_bmw_corona_components_sample_impl_AdasDeconstructorJNI_swig_1module_1init#8")
It does take a bit of time for all the bundles (more than 100) to get up and running, and I do get a java.lang.NullPointerException: null the first couple of seconds after launch. Afterwards, everything seems to be working fine. And the nullPointerException is gone..
I just started learning Javafx with Java11
I created a project in IntelliJ and it gave the standard structure.
In src file when I change the package name for the package "sample" to anything else, IntelliJ gives the following error.
Error:Kotlin: The Kotlin standard library is not found in the module graph. Please ensure you have the 'requires kotlin.stdlib' clause in your module definition
The error disappears when I refactor the package back to "sample".
how do I rename without getting this problem.
this might be helpfull
Javac gives this error, when lint is enabled and you use Java 9 module in Kotlin. You have to declare "requires kotlin.stdlib" in your module-info.java.
Ran into the same issue. For me, I'm using a module-info file in the src folder that looks like this:
module javafx {
requires javafx.fxml;
requires javafx.controls;
requires javafx.graphics;
opens sample;
}
If you rename your package to foo, then you need to change the last line to "opens foo". Otherwise it's still gonna look for and try to open a package named "sample". I have no idea what this has to do with kotlin.
I had the same problem and I solved it disabling "Kotlin migration detection". I have already response here:
https://stackoverflow.com/a/59628873/2350799
I had the same problem. But as long as you are not using Kotlin in the project there is a workaround : disable the Kotlin plugin, under settings.