Compiling issues with a Java program in cis5.8 environment

[Ali Salehian]

Hello, I am learning as how to use Java program in Cloverleaf. I copied the java sample program HL7TPS.java from directory: /hci/cis5.8/integrator/java_uccs/src/samples to my own side and then compile it. I got the following error:

1. HL7TPS.java:8: cannot access com.quovadx.cloverleaf.upoc.TPS

2. bad class file: /hci/cis5.8/integrator/clgui/lib/cljava.jar(com/quovadx/cloverleaf/upoc/TPS.class)

class file has wrong version 50.0, should be 49.0

Any suggestion as how can I fix these issues!

Thanks in advance foyer help.

Topic

[Levy Lazarre]

Hello Ali,

1. The first error indicates that your CLASSPATH environment variable is not set, possibly because you are trying to compile as a user other than “hci”. In order to run those samples, it’s better to be logged on as the “hci” user. So, if you are “hci” at the command line, you may want to first run setroot and setsite to properly set your environment.

  There is no need to copy the sample java files to another location. You can compile them where they are at.

2. The second error probably indicates that there is discrepancy between the Java version used to compile the program and the Java version supported by Cloverleaf 5.8. Find out from documentation which version of Java is supported by CIS 5.8 (Java 1.6?) and use that version to compile the source files. You cannot go higher.

I hope this helps.

[Ali Salehian]

Hello Levy,

The followings are information related to my login and the environment:

1. login ID

cldev % whoami

hci

2. Hci root and my working site (dev_as_02)

cldev % showroot

HCI root is /hci/cis5.8/integrator

HCI master site is site_master

HCI site is dev_as_02

3. Class path

cldev % echo $CLASSPATH

/hci/cis5.8/integrator/dev_as_02/java_uccs:.:/hci/cis5.8/integrator/clgui/lib/cljava.jar:/hci/cis5.8/integrator/java_uccs

4. Java version

cldev % java -version

java version “1.6.0”

5. The way that I compile.

cldev % javac  HL7TPS.java

Errors:

HL7TPS.java:8: cannot access com.quovadx.cloverleaf.upoc.TPS

bad class file: /hci/cis5.8/integrator/clgui/lib/cljava.jar(com/quovadx/cloverleaf/upoc/TPS.class)

class file has wrong version 50.0, should be 49.0

Please remove or make sure it appears in the correct subdirectory of the classpath.

public class HL7TPS extends TPS

                           ^

1 error

The first line of HL7TPS starts with:

import com.quovadx.cloverleaf.upoc.*;

Thanks for your help!

Ali

[Levy Lazarre]

So your classpath is fine and your commands are correct.

However, 49 = Java 5

              50 = Java 6

The cljava.jar (which contains the TPS.class) was compiled for Java 6, and it appears that you are trying to access it with Java 5.

It would appear to your compiler (javac) is Java 1.5

You may have two versions of Java installed, and javac is running the 1.5 version. You should check your PATH.

[Ali Salehian]

Thank you Levy for your help,

I will follow up this issue with our Cloverleaf technical contact, sharing the information you provided with him.

Ali

[Author]

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