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Mantis - Cafesterol
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Erweiterte Problemanzeige |
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ID:
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Kategorie:
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Auswirkung:
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Reproduzierbar:
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Meldungsdatum:
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Letzte Aktualisierung:
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19 |
general |
kleinerer Fehler |
immer |
2008-08-10 13:35 |
2008-08-11 13:23 |
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Reporter:
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raboof |
Rechnertyp:
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Bearbeitung durch:
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xclerc |
Betriebssystem:
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Priorität:
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normal |
BS-Version:
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Status:
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erledigt |
Produktversion:
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Produkt-Build:
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Lösung:
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erledigt |
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Projektion:
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keine |
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Aufwand:
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keine |
Behoben in Version:
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1.0 |
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Zusammenfassung:
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0000019: Running jars compiled without '-standalone' |
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Beschreibung:
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When I compile my .ml with '-standalone', it works fine.
Without '-standalone', I assume I should put some jar on the classpath. I am confused, however, which one: most ocaml*.jar jars seem to contain the class, but none appear to work.
It seems http://jijixi.azito.com/cgi-bin/diary/index.rb?date=20080527 [^] had the same error, unfortunately I can't read this language :). |
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Schritte zur Reproduktion:
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Zusätzliche Information:
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Exception in thread "main" java.lang.NoClassDefFoundError: fr/x9c/cadmium/kernel/AbstractNativeRunner
at java.lang.ClassLoader.defineClass1(Native Method)
at java.lang.ClassLoader.defineClass(ClassLoader.java:637)
at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:142)
at java.net.URLClassLoader.defineClass(URLClassLoader.java:277)
at java.net.URLClassLoader.access$000(URLClassLoader.java:73)
at java.net.URLClassLoader$1.run(URLClassLoader.java:212)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(URLClassLoader.java:205)
at java.lang.ClassLoader.loadClass(ClassLoader.java:323)
at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:294)
at java.lang.ClassLoader.loadClass(ClassLoader.java:268)
at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:336)
Caused by: java.lang.ClassNotFoundException: fr.x9c.cadmium.kernel.AbstractNativeRunner
at java.net.URLClassLoader$1.run(URLClassLoader.java:217)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(URLClassLoader.java:205)
at java.lang.ClassLoader.loadClass(ClassLoader.java:323)
at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:294)
at java.lang.ClassLoader.loadClass(ClassLoader.java:268)
at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:336)
... 12 more
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| Problem-Beziehungen | |
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Angehängte Dateien:
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Problem-Historie |
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Änderungsdatum |
Benutzername |
Feld |
Änderung |
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2008-08-10 13:35 |
raboof |
Neues Problem |
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2008-08-10 22:42 |
xclerc |
Status |
neu => erledigt |
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2008-08-10 22:42 |
xclerc |
Behoben in Version |
=> 1.0 |
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2008-08-10 22:42 |
xclerc |
Lösung |
offen => erledigt |
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2008-08-10 22:42 |
xclerc |
Bearbeitung durch |
=> xclerc |
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2008-08-10 22:42 |
xclerc |
Problemnotiz hinzugefügt: 0000019 |
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2008-08-11 10:44 |
raboof |
Status |
erledigt => Rückmeldung |
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2008-08-11 10:44 |
raboof |
Lösung |
erledigt => wiedereröffnet |
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2008-08-11 10:44 |
raboof |
Problemnotiz hinzugefügt: 0000021 |
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2008-08-11 13:23 |
xclerc |
Problemnotiz hinzugefügt: 0000022 |
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2008-08-11 13:23 |
xclerc |
Status |
Rückmeldung => erledigt |
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2008-08-11 13:23 |
xclerc |
Lösung |
wiedereröffnet => erledigt |
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Notiz |
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(0000019)
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xclerc
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2008-08-10 22:42
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This is not really a bug, when the "-standalone" switch of the compiler
is not used, one has to give access to "ocamlrun.jar" from the classpath.
The documentation (as shipped with the next version) will be enhanced
to underline this fact. |
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(0000021)
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raboof
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2008-08-11 10:44
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I figured I needed to put one of the ocaml*.jar's on the classpath, however that does not seem to make the NoClassDefFoundError go away:
arnouten@bird:/tmp$ which ocamljava
/usr/local/bin/ocamljava
arnouten@bird:/tmp$ ocamljava -standalone -o hello.jar hello.ml
arnouten@bird:/tmp$ java -jar hello.jar
Hello world!
arnouten@bird:/tmp$ ocamljava -o hello.jar hello.ml
arnouten@bird:/tmp$ java -cp /usr/local/lib/ocaml/ocamlrun.jar -jar hello.jar
Exception in thread "main" java.lang.NoClassDefFoundError: fr/x9c/cadmium/kernel/AbstractNativeRunner
at java.lang.ClassLoader.defineClass1(Native Method)
at java.lang.ClassLoader.defineClass(ClassLoader.java:637)
at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:142)
at java.net.URLClassLoader.defineClass(URLClassLoader.java:277)
at java.net.URLClassLoader.access$000(URLClassLoader.java:73)
at java.net.URLClassLoader$1.run(URLClassLoader.java:212)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(URLClassLoader.java:205)
at java.lang.ClassLoader.loadClass(ClassLoader.java:323)
at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:294)
at java.lang.ClassLoader.loadClass(ClassLoader.java:268)
at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:336)
Caused by: java.lang.ClassNotFoundException: fr.x9c.cadmium.kernel.AbstractNativeRunner
at java.net.URLClassLoader$1.run(URLClassLoader.java:217)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(URLClassLoader.java:205)
at java.lang.ClassLoader.loadClass(ClassLoader.java:323)
at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:294)
at java.lang.ClassLoader.loadClass(ClassLoader.java:268)
at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:336)
... 12 more
arnouten@bird:/tmp$ jar tf /usr/local/lib/ocaml/ocamlrun.jar | grep fr/x9c/cadmium/kernel/AbstractNativeRunner
fr/x9c/cadmium/kernel/AbstractNativeRunner$1.class
fr/x9c/cadmium/kernel/AbstractNativeRunner$Application.class
fr/x9c/cadmium/kernel/AbstractNativeRunner$Closure.class
fr/x9c/cadmium/kernel/AbstractNativeRunner$Values.class
fr/x9c/cadmium/kernel/AbstractNativeRunner.class
arnouten@bird:/tmp$ |
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(0000022)
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xclerc
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2008-08-11 13:23
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The problem stems from the command-line switches passed to "java".
Indeed, when the "-jar" switch is used, any "-cp" or "-classpath" is purely
ignored by the JVM without any warning.
The command-line to run the jar file compiled without "-standalone" is thus:
java -cp /usr/local/lib/ocaml/ocamlrun.jar:/usr/local/lib/ocaml/stdlib.jar:hello.jar pack.cafesterolMain
Two remarks:
- in my previous note, I forgot to mention that -besides "ocamlrun.jar"- it is also needed to
put in the classpath the jar files related to the libraries used by the OCaml program
(in this case, assuming a simple "hello world" program, only stdlib.jar is needed) ;
- "pack.cafesterolMain" is the name of the Java class acting as the entry point of the compiled
OCaml program ("cafesterolMain" is hard-wired but "pack" can be changed using the the
"-java-package" switch of the compiler). |
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