SBT JNI Classes not available after publishing jar(s)

[chitralverma]

SBT JNI Classes not available after publishing jar(s) even though the following is set,

sbtJniCoreScope := Compile,

Any solutions for this except for using assembly plugin ?

Exception in thread "main" java.lang.NoClassDefFoundError: com/github/sbt/jni/syntax/NativeLoader
	at java.lang.ClassLoader.defineClass1(Native Method)
	at java.lang.ClassLoader.defineClass(ClassLoader.java:757)
	at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:142)
	at java.net.URLClassLoader.defineClass(URLClassLoader.java:473)
	at java.net.URLClassLoader.access$100(URLClassLoader.java:74)
	at java.net.URLClassLoader$1.run(URLClassLoader.java:369)
	at java.net.URLClassLoader$1.run(URLClassLoader.java:363)
	at java.security.AccessController.doPrivileged(Native Method)
	at java.net.URLClassLoader.findClass(URLClassLoader.java:362)
	at java.lang.ClassLoader.loadClass(ClassLoader.java:419)
	at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:352)
	at java.lang.ClassLoader.loadClass(ClassLoader.java:352)
	at java.lang.ClassLoader.defineClass1(Native Method)
	at java.lang.ClassLoader.defineClass(ClassLoader.java:757)
	at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:142)
	at java.net.URLClassLoader.defineClass(URLClassLoader.java:473)
	at java.net.URLClassLoader.access$100(URLClassLoader.java:74)
	at java.net.URLClassLoader$1.run(URLClassLoader.java:369)
	at java.net.URLClassLoader$1.run(URLClassLoader.java:363)
	at java.security.AccessController.doPrivileged(Native Method)
	at java.net.URLClassLoader.findClass(URLClassLoader.java:362)
	at java.lang.ClassLoader.loadClass(ClassLoader.java:419)
	at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:352)
	at java.lang.ClassLoader.loadClass(ClassLoader.java:352)
	at org.a.b.c..version(Test.scala)
	at org.a.b.c.Main.main(Main.java:6)
Caused by: java.lang.ClassNotFoundException: com.github.sbt.jni.syntax.NativeLoader
	at java.net.URLClassLoader.findClass(URLClassLoader.java:387)
	at java.lang.ClassLoader.loadClass(ClassLoader.java:419)
	at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:352)
	at java.lang.ClassLoader.loadClass(ClassLoader.java:352)
	... 26 more

[pomadchin]

Hello @chitralverma, sbtJniCoreScope := Compile setting should be enough.
I'm using this plugin here and it keeps the dependency after the release.

Mb you could share the project structure that causes this problem? I.e. a minimized project that allows to reproduce the error happening.

[chitralverma]

Hi @pomadchin , If you download the jar from here, and run the command below, you will see that the class NativeLoader does not exist in the jar. Am I doing something wrong?

java -jar <path to downloaded jar>

im running + publishLocal in sbt shell and picking up my jar from ~/.ivy2/local/ ...

[pomadchin]

It is a transitive dependency, you can use SBT to configure the PDAL dependency in this case; and SBT JNI will pull down the sbt-jni-core from maven central and put it into your app classpath.

I'd recommend you to get familiar with https://www.scala-sbt.org/1.x/docs/Library-Dependencies.html#Managed+Dependencies

[chitralverma]

yea I saw that it's present in the generated pom.

Thanks, closing this.