Hello all,
I am researching the possibility of using the Java 2 Micro Edition platform
in a web-enabled device. Specifically, I am investigating whether the
Catalina servlet container can be configured using the c virtual machine
(under CDC-foundation profile) instead of relying upon a full-fledged jdk to
to the job. I am running Linux.
The following are steps I've taken to find a solution:
- changed name 'cvm' to 'java'
- changed PATH varialbe to execute cvm when 'java' command is typed
- changed JAVA_HOME to the directory above the bin where cvm (java) resides
- altered catalina.sh -classpath references to -Djava.class.path= and added
$CATALINA_HOME/server/lib/catalina.jar to the classpath
- added (in catalina.sh) -Xbootclasspath=$JAVA_HOME/lib/foundation.jar
I did all of this under the "embedded" section of catalina.sh. When I run
the script: "bin/catalina.sh embedded" many error are thrown due to the
limited package set found in foundation.jar. (ie.
java.lang.NoClassDefFoundError: javax.servlet.ServletException). So I began
added all of the packages catalina called for, but this only took me so far.
Below is the applicable section of catalina.sh that I altered and my current
error output. (I realize I placed many non-j2me compliant jars in the
classpath, I'm only doing everything I can think of to make catalina happy
to get cvm to run!):
-----------
catalina.sh
-----------
elif [ "$1" = "embedded" ] ; then
shift
exec "$_RUNJAVA" $JAVA_OPTS $CATALINA_OPTS \
-showversion -Djava.endorsed.dirs="$JAVA_ENDORSED_DIRS"
-Djava.class.path=$CATALINA_HOME/server/lib/catalina.jar:/home/brice/java/javaWebServices/server/lib/commons-digester.jar:/usr/java/j2sdk1.4.0/lib/javax.servlet.jar:/usr/java/jdk1.3.1/jre/lib/rt.jar
-Xbootclasspath=$JAVA_HOME/lib/foundation.jar \
-Dcatalina.base="$CATALINA_BASE" \
-Dcatalina.home="$CATALINA_HOME" \
-Djava.io.tmpdir="$CATALINA_TMPDIR" \
org.apache.catalina.startup.Embedded
--------------------
command line (error)
--------------------
[root@dhcp-15-180-33-173 jakarta-tomcat-4.0.4]# bin/catalina.sh embedded
Using CATALINA_BASE: /usr/local/jakarta-tomcat-4.0.4
Using CATALINA_HOME: /usr/local/jakarta-tomcat-4.0.4
Using CATALINA_TMPDIR: /usr/local/jakarta-tomcat-4.0.4/temp
Using JAVA_HOME:
/home/brice/java/j2me/foundation/cdcfoundation/build/linux
GC[SS]: Initialized semi-space gen for generational GC
Size of *each* semispace in bytes=1048576
Limits of generation = [0x401bc200,0x403bc200)
First semispace = [0x401bc200,0x402bc200)
Second semispace = [0x402bc200,0x403bc200)
GC[MC]: Initialized mark-compact gen for generational GC
Size of the space in bytes=3145728
Limits of generation = [0x403bc200,0x406bc200)
GC[generational]: Auxiliary data structures
heapBaseMemoryArea=[0x401bc008,0x406bc208)
cardTable=[0x8345e90,0x8348690)
objectHeaderTable=[0x8348698,0x834ae98)
summaryTable=[0x834aea0,0x8354ea0)
java version "J2ME Foundation 1.0"
Java(TM) 2, Micro Edition (build 1.0fcs-ar)
CVM (build 1.0fcs-ar, native threads)
security properties not found. using defaults.
Starting embedded server
Creating engine
Creating host 'localhost' with appBase
'/usr/local/jakarta-tomcat-4.0.4/webapps'
Creating context '' with docBase
'/usr/local/jakarta-tomcat-4.0.4/webapps/ROOT'
can't open ../lib/tzmappings
java.lang.NoSuchMethodError: java.lang.String: method getBytes(II[BI)V not
found
at
org.apache.catalina.util.RequestUtil.URLDecode(Ljava/lang/String;Ljava/lang/String;)Ljava/lang/String;(RequestUtil.java:376)
...
Has anyone ever tried to run tomcat on a j2me implementation? If anyone has
any clues, pointers, advise, online docs, etc it would be much appreciate.
Thanks.
-Brice Roncace
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