Processing 1.0 - Processing Discourse - errors trying to run in linux

kunkmiester

errors trying to run in linux
Jun 19^th, 2009, 12:10pm

I have java set up, and processing, unless there's something fancy to do besides decompress the .tgz file. I'm running Puppy Linux.

Tryign to get the shell up though is proving difficult. I got the symlinks set up, but I'm still getting an error. Last time I tried ./processing I got this message:

Exception in thread "main" java.lang.NoClassDefFoundError: processing/app/Base
Caused by: java.lang.ClassNotFoundException: processing.app.Base
at java.net.URLClassLoader$1.run(URLClassLoader.java:200)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(URLClassLoader.java:188)
at java.lang.ClassLoader.loadClass(ClassLoader.java:307)
at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:301)
at java.lang.ClassLoader.loadClass(ClassLoader.java:252)
at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:320)
Could not find the main class: processing.app.Base. Program will exit.

What's causing that, and how do I fix it? I've been working a bit with some poeple who mess with puppy a lot, but they don't know this one, and I'm pretty much a newb.

koogy God Member Offline Posts: 788	Re: errors trying to run in linux Reply #1 - Jun 19^th, 2009, 1:43pm can you run the following and post the results: which java echo $JAVA_HOME java -version sh -x processing

kunkmiester

Re: errors trying to run in linux
Reply #2 - Jun 19^th, 2009, 2:18pm

First did its thing.

Version gives:
java version "1.6.0_14"
Java(TM) SE Runtime Environment (build 1.6.0_14-b08)
Java HotSpot(TM) Client VM (build 14.0-b16, mixed mode, sharing)

The last command gives all this:
+ APPDIR=
+ for LIB in java/lib/rt.jar java/lib/tools.jar 'lib/*.jar'
+ CLASSPATH=:/java/lib/rt.jar
+ for LIB in java/lib/rt.jar java/lib/tools.jar 'lib/*.jar'
+ CLASSPATH=:/java/lib/rt.jar:/java/lib/tools.jar
+ for LIB in java/lib/rt.jar java/lib/tools.jar 'lib/*.jar'
+ CLASSPATH=:/java/lib/rt.jar:/java/lib/tools.jar:/lib/antlr.jar
+ for LIB in java/lib/rt.jar java/lib/tools.jar 'lib/*.jar'
+ CLASSPATH=:/java/lib/rt.jar:/java/lib/tools.jar:/lib/antlr.jar:/lib/core.jar
+ for LIB in java/lib/rt.jar java/lib/tools.jar 'lib/*.jar'
+ CLASSPATH=:/java/lib/rt.jar:/java/lib/tools.jar:/lib/antlr.jar:/lib/core.jar:/li
b/ecj.jar
+ for LIB in java/lib/rt.jar java/lib/tools.jar 'lib/*.jar'
+ CLASSPATH=:/java/lib/rt.jar:/java/lib/tools.jar:/lib/antlr.jar:/lib/core.jar:/li
b/ecj.jar:/lib/jna.jar
+ for LIB in java/lib/rt.jar java/lib/tools.jar 'lib/*.jar'
+ CLASSPATH=:/java/lib/rt.jar:/java/lib/tools.jar:/lib/antlr.jar:/lib/core.jar:/li
b/ecj.jar:/lib/jna.jar:/lib/pde.jar
+ export CLASSPATH
+ export PATH=/java/bin:/bin:/usr/bin:/sbin:/usr/sbin:/usr/local/bin:/usr/local/sbin:/usr
/X11R7/bin:/root/my-applications/bin:/opt/mozilla.org/bin:/opt/samba/bin
+ PATH=/java/bin:/bin:/usr/bin:/sbin:/usr/sbin:/usr/local/bin:/usr/local/sbin:/usr
/X11R7/bin:/root/my-applications/bin:/opt/mozilla.org/bin:/opt/samba/bin
+ java processing.app.Base
Exception in thread "main" java.lang.NoClassDefFoundError: processing/app/Base
Caused by: java.lang.ClassNotFoundException: processing.app.Base
at java.net.URLClassLoader$1.run(URLClassLoader.java:200)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(URLClassLoader.java:188)
at java.lang.ClassLoader.loadClass(ClassLoader.java:307)
at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:301)
at java.lang.ClassLoader.loadClass(ClassLoader.java:252)
at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:320)
Could not find the main class: processing.app.Base. Program will exit.

kunkmiester YaBB Newbies Offline Posts: 6	Re: errors trying to run in linux Reply #3 - Jun 19^th, 2009, 2:20pm Just to note, I've symlinked java and javac to the directory that processing is in.

Andreas F

Re: errors trying to run in linux
Reply #4 - Jun 19^th, 2009, 2:32pm

Hi,

Your mentioning of symlinks makes me slightly suspicious. Have you tried starting processing from inside its directory? I.e. doing the ./processing in the folder created by unpacking the archive?

If you have created a symlink to the processing binary and try to start from somewhere outside its main folder you would get the error you describe (well, at least I do).

gwoptics.org

kunkmiester YaBB Newbies Offline Posts: 6	Re: errors trying to run in linux Reply #5 - Jun 19^th, 2009, 3:48pm The symlinks were just for java. ./processing while in the directory gave the big ugly error. Java and javac are linked to the processing directory. Those are the only links.

koogy

Re: errors trying to run in linux
Reply #6 - Jun 20^th, 2009, 2:27am

Code:


export PATH=/java/bin:/bin:/usr/bin:/sbin...

mine (and i'm still on Processing 1.0.3) says
Code:


export PATH=./java/bin:/sbin:/opt/java/bin...

where ./java is the java runtime included with processing and /opt/java is my Sun java install. my JAVA_HOME is set to the Sun java.

i am also confused about the links. can you ls -l them?

mine:
Code:


four:fedora10> ls -l
total 56
drwxr-xr-x  6 1000 1000  4096 2009-02-22 09:57 examples
drwxr-xr-x  7 1000 1000  4096 2008-11-23 01:06 java
drwxr-xr-x  4 1000 1000  4096 2009-02-22 09:57 lib
drwxr-xr-x  9 1000 1000  4096 2009-02-22 09:57 libraries
-rwxr-xr-x  1 1000 1000   266 2009-02-22 09:57 processing
drwxrwxr-x 12 1000 1000 20480 2009-02-21 19:23 reference
-rw-r--r--  1 1000 1000  8938 2009-02-22 09:56 revisions.txt
drwxr-xr-x  3 1000 1000  4096 2009-02-22 09:57 tools

that java isn't a link. i don't have javac in there.

actually, because of that path, it uses the java executable and libraries in the included directory, not the sun one. i think your link is hiding this.

Code:


four:fedora10> ls /opt/processing-1.0.3java
bin	  javaws  LICENSE  README			     Welcome.html
COPYRIGHT  lib     plugin   THIRDPARTYLICENSEREADME.txt

kunkmiester YaBB Newbies Offline Posts: 6	Re: errors trying to run in linux Reply #7 - Jun 20^th, 2009, 10:48am Going to the processing directory, and doing the ls -l, I only see the java. I remember now that the others were linked to something in /usr/bin, but -l isn't showing anything. I do remember someone suggesting an export $PATH, but I can't remember what it was for. What exactly is the processing.app.Base?

koogy

Re: errors trying to run in linux
Reply #8 - Jun 20^th, 2009, 12:12pm

the ./processing script should sort out the PATH and CLASSPATH (which we saw with the sh -x) but yours is using /java (absolute path) rather than ./java (java directory under current path) which seems wrong.

> What exactly is the processing.app.Base?

it's the full name of the processing base class. the last line of the processing script is 'java processing.app.Base'

if i just do that i get exactly your error. if i do it via the processing script, which sets up my CLASSPATH and PATH then it works fine. which implies something's not being setup right.

koogy God Member Offline Posts: 788	Re: errors trying to run in linux Reply #9 - Jun 20^th, 2009, 12:13pm try this in your processing directory (which is what the script should be doing) Code: export CLASSPATH=:./java/lib/rt.jar:./java/lib/tools.jar:./lib/antlr.jar:./lib/core.jar:./lib/ecj.jar:./lib/jna.jar:./lib/pde.jar export PATH=./java/bin:$PATH java processing.app.Base

koogy

Re: errors trying to run in linux
Reply #10 - Jun 20^th, 2009, 12:14pm

if that fails, check that everything in the classpath exists

Code:


four:fedora10> ls -l java/lib/rt.jar ./java/lib/tools.jar ./lib/antlr.jar ./lib/core.jar ./lib/ecj.jar ./lib/jna.jar ./lib/pde.jar
-rw-r--r-- 1 1000 1000 50843125 2008-11-23 01:06 java/lib/rt.jar
-rw-r--r-- 1 1000 1000 12490823 2008-11-23 01:08 ./java/lib/tools.jar
-rw-r--r-- 1 1000 1000   443876 2009-02-22 09:56 ./lib/antlr.jar
-rw-r--r-- 1 1000 1000   229715 2009-02-22 09:57 ./lib/core.jar
-rw-r--r-- 1 1000 1000  1647271 2009-02-22 09:56 ./lib/ecj.jar
-rw-r--r-- 1 1000 1000   625227 2009-02-22 09:56 ./lib/jna.jar
-rw-r--r-- 1 1000 1000   692818 2009-02-22 09:57 ./lib/pde.jar

owner, group, dates and file sizes may differ, obv. but sizes should be close

(sorry, the submit button doesn't like it when i post long, complicated things hence the 3 posts)

kunkmiester

Re: errors trying to run in linux
Reply #11 - Jun 20^th, 2009, 1:53pm

PUtting everything in manually worked, actually. It's working. I get the impression that the script is supposed to be doing everything itself though. Here's what the script looks like when I open it with a text editor:
#!/bin/sh

APPDIR="$(dirname -- "${0}")"

for LIB in \
java/lib/rt.jar \
java/lib/tools.jar \
lib/*.jar \
;
do
CLASSPATH="${CLASSPATH}:${APPDIR}/${LIB}"
done
export CLASSPATH

export PATH="${APPDIR}/java/bin:${PATH}"

java processing.app.Base

I'd eventually like to get this fixed and get an entry on the menu, so I don't have to do contortions to open it up.

koogy

Re: errors trying to run in linux
Reply #12 - Jun 21^st, 2009, 3:06am

that's identical to mine

i've added a script to my ~/bin directory (which is in my path) called processing and all it does is cd (pushd actually) into the right place and call the real processing script in there. means i can call it from anywhere (even the menu) just by calling my processing script:

Code:


echo "Using Processing-1.0.3"
pushd /opt/processing-1.0.3
./processing
popd