Exception when trying to run program built with Lux

[fachammer]

Hi, I'm really happy that there is a new release of Lux! So I wanted to get started and learn some basics. However, when following along chapter 1 of the book I am getting an issue when trying to run the built program. Following the steps in section 3 works fine up until step 6. I have a target folder but, first of all, there is no file target/jvm/program.jar, but there is a file called target/program.jar. However, running java -jar target/program.jar gives me the following exception:

Error: A JNI error has occurred, please check your installation and try again
Exception in thread "main" java.lang.SecurityException: Invalid signature file digest for Manifest main attributes
        at sun.security.util.SignatureFileVerifier.processImpl(SignatureFileVerifier.java:317)
        at sun.security.util.SignatureFileVerifier.process(SignatureFileVerifier.java:259)
        at java.util.jar.JarVerifier.processEntry(JarVerifier.java:318)
        at java.util.jar.JarVerifier.update(JarVerifier.java:230)
        at java.util.jar.JarFile.initializeVerifier(JarFile.java:383)
        at java.util.jar.JarFile.ensureInitialization(JarFile.java:617)
        at java.util.jar.JavaUtilJarAccessImpl.ensureInitialization(JavaUtilJarAccessImpl.java:69)
        at sun.misc.URLClassPath$JarLoader$2.getManifest(URLClassPath.java:991)
        at java.net.URLClassLoader.defineClass(URLClassLoader.java:451)
        at java.net.URLClassLoader.access$100(URLClassLoader.java:74)
        at java.net.URLClassLoader$1.run(URLClassLoader.java:369)
        at java.net.URLClassLoader$1.run(URLClassLoader.java:363)
        at java.security.AccessController.doPrivileged(Native Method)
        at java.net.URLClassLoader.findClass(URLClassLoader.java:362)
        at java.lang.ClassLoader.loadClass(ClassLoader.java:418)
        at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:352)
        at java.lang.ClassLoader.loadClass(ClassLoader.java:351)
        at sun.launcher.LauncherHelper.checkAndLoadMain(LauncherHelper.java:601)

Looking up this issue I came across this StackOverflow post which suggests that the issue can occur when packaging signed jars. Is there something I can do to fix this or should this be fixed inside of Lux?

[eduardoejp]

Hello, @fachammer .

I'll look into this issue, as it's not an error I was expecting to see.

I think I might have ran into it before, during the release process, as I was testing something on the Python compiler, but it was the first and only time I ever saw it, so I chalked it up to some weird one-off occurrence.

I'll try to replicate it and see how I can fix it.

[jcranch]

If it's any help, I have been able to replicate this issue, running the new release of Lux on Debian stable.

I am also keen to start experimenting with the language, and am grateful for the efforts in the recent release to make it easier to do so.

[ahribellah]

I'm having this same issue on Windows 10. For more info, here's some of the log from the attempts to grab the repositories needed for the build. I followed the instructions in the getting started chapter.

Local successes:
  Local failures: 0: "com.github.luxlang:lux-jvm-0.6.0"
                  1: "com.github.luxlang:stdlib-0.6.0"
Remote successes:  0: "args4j:args4j-2.0.16"
                   1: "cglib:cglib-nodep-2.1_3"
                   2: "com.github.luxlang:lux-bootstrapper-0.6.0"
                   3: "com.github.luxlang:lux-jvm-0.6.0"
                   4: "com.github.luxlang:stdlib-0.6.0"
                   5: "com.google.code.findbugs:jsr305-1.3.9"
                   6: "com.google.guava:guava-14.0.1"
                   7: "com.google.javascript:closure-compiler-v20130603"
                   8: "com.google.protobuf:protobuf-java-2.4.1"
                   9: "javax.inject:javax.inject-1"
                  10: "junit:junit-3.8.1"
                  11: "junit:junit-4.1"
                  12: "junit:junit-4.11"
                  13: "junit:junit-4.4"
                  14: "org.apache.ant:ant-1.7.1"
                  15: "org.apache.ant:ant-launcher-1.7.1"
                  16: "org.clojure:clojure-1.6.0"
                  17: "org.clojure:clojurescript-0.0-2080"
                  18: "org.clojure:core.match-0.2.1"
                  19: "org.clojure:data.json-0.2.3"
                  20: "org.clojure:google-closure-library-0.0-20130212-95c19e7f0f5f"
                  21: "org.clojure:google-closure-library-third-party-0.0-20130212-95c19e7f0f5f"
                  22: "org.clojure:tools.reader-0.8.0"
                  23: "org.codehaus.janino:janino-3.0.11"
                  24: "org.easymock:easymock-2.2"
                  25: "org.easymock:easymockclassextension-2.2.1"
                  26: "org.hamcrest:hamcrest-core-1.3"
                  27: "org.json:json-20090211"
                  28: "org.mozilla:rhino-1.7R4"
                  29: "org.ow2.asm:asm-7.3.1"
                  30: "org.ow2.asm:asm-all-5.0.3"
                  31: "org.ow2.asm:asm-analysis-7.3.1"
                  32: "org.ow2.asm:asm-commons-7.3.1"
                  33: "org.ow2.asm:asm-test-7.3.1"
                  34: "org.ow2.asm:asm-tree-7.3.1"
                  35: "org.ow2.asm:asm-util-7.3.1"
                  36: "xml-apis:xml-apis-1.3.04"
 Remote failures:  0: "caja:caja-r4939"
                   1: "org.junit.jupiter:junit-jupiter-api-5.3.2"
                   2: "org.junit.jupiter:junit-jupiter-api-5.3.2"
                   3: "org.junit.jupiter:junit-jupiter-api-5.3.2"
                   4: "org.junit.jupiter:junit-jupiter-params-5.3.2"
                   5: "org.junit.jupiter:junit-jupiter-params-5.3.2"
                   6: "org.junit.jupiter:junit-jupiter-params-5.3.2"
                   7: "org.junit.jupiter:junit-jupiter-params-5.3.2"
                   8: "org.junit.jupiter:junit-jupiter-params-5.3.2"
                   9: "org.junit.jupiter:junit-jupiter-params-5.3.2"
                  10: "xerces:xercesImpl-2.9.0"

[eduardoejp]

Apologies for the delay.

I've been terribly busy this past week.

v0.6.2 should no longer exhibit this problem: https://github.com/LuxLang/lux/releases/tag/0.6.2

Also, please update your aedifex.jar file with the one in this release.

[eduardoejp]

@fachammer

I have a target folder but, first of all, there is no file target/jvm/program.jar, but there is a file called target/program.jar.

The correct path is target/program.jar, instead of target/jvm/program.jar.

I fixed that in the book.

Thanks for pointing it out!

[fachammer]

@eduardoejp I had to delete the target folder of the project where I was testing Lux before, but that is to be expected, I guess. After that, building with the new aedifex.jar seems to work now. Great!

[ahribellah]

Just following up to say that this was also fixed for me on Win10 with the update.