pkg com.sap.aii.proxy.framework.core don't exist even added in the JRE path

Hi All,

1) i have created the New DC project of type external Library

2) used this in the used DC of my project and its work fine at buid time.

But after deplying the application i got this error [javac] ERROR: =

/usr/sap/EPD/JC02/j2ee/cluster/server0/temp/CBS/22/.B/1103/DCs/sap.com/fs=

cm/bd/ebpp/_comp/src/packages/com/ndpl/ebpp/CustomerExtensions/Zuces_Noti=

f_Get_Data_Input.java:2: cannot access =

com.sap.aii.proxy.framework.core.AbstractType

[javac] ERROR: bad class file: =

/usr/sap/EPD/JC02/j2ee/cluster/server0/temp/CBS/22/.B/1103/DCs/sap.com/nd=

pl_01/_comp/gen/default/public/com.sap.aii.proxy.framework_api/lib/java/c=

om.sap.aii.proxy.framework.jar(com/sap/aii/proxy/framework/core/AbstractT=

ype.class)

[javac] ERROR: class file has wrong version 49.0, should be 48.0

[javac] ERROR: Please remove or make sure it appears in the correct =

subdirectory of the classpath.

[javac] ERROR: public class Zuces_Notif_Get_Data_Input extends =

com.sap.aii.proxy.framework.core.AbstractType{

[javac] ERROR: =

^

[javac] 1 error

Hi,

javac ERROR: class file has wrong version 49.0, should be 48.0

This error means that the class file in question is being built with JDK1.5 (49), however it should be built with JDK1.4.2 (48).

In other words, as per the class the build expects a class file built with 1.4.2, but in your track JDK1.5 is configured for the build tool.

You need to therefore :

A.) review the CBS service settings, as most likely the parameters BUILDT_TOOL_JDK_HOME and JDK_HOME_PATHS are set up improperly.

B.) plus the build variant is incorrect in the track in question.

I'll refer below to the corresponding points with the letters A and B.

-

Some more explanation on the error:

If you check any class file with a hex editor, you'll see at the beginning of it this:

example: CA FE BA BE | 00 00 |00 31 ...

JDK 1.6 = 50 (0x32 hex)

JDK 1.5 = 49 (0x31 hex = (16^{1)*3 + (16}0)*1 = 49)

JDK 1.4 = 48 (0x30 hex)

JDK 1.3 = 47 (0x2F hex)

JDK 1.2 = 46 (0x2E hex)

JDK 1.1 = 45 (0x2D hex)

On the first 4 bytes there's a magic number (CAFEBABE) which ensures this is a java class file, then on 2-2 bytes you'll see the minor and the major version (in this order). In the above example 00 00 | 00 31. This is what displayed as major.minor i.e. 49.0 what you can see in error messages. See also the attachment I've put to this thread minormajor.JPG.

More information on the class file structure:

http://java.sun.com/docs/books/jvms/second_edition/html/ClassFile.doc.html

-

For point A)

See the guide for doublechecking the CBS parameters

help.sap.com u2013 CBS Service Properties

http://help.sap.com/saphelp_nw70/helpdata/EN/53/75b3407e73c57fe10000000a1550b0/frameset.htm

Further explanation to the paramters

BUILD_TOOL_JDK_HOME and JDK_HOME_PATHS

BUILD_TOOL_JDK_HOME = <path to highest JDK>

JDK_HOME_PATHS = JDK1.3.1_HOME=<path of jdk131>;JDK1.4.2_HOME=<path of jdk142>;JDK1.5.0_HOME=<path of jdk150>JDK1.6.0_HOME=<path of jdk160>;default=<path of the JDK as default>

Some simple rules with examples:

- for BUILD_TOOL_JDK_HOME you simply enter the path to your JDK, e.g.: /opt/IBMJava2-amd64-142

- for JDK_HOME_PATHS you have to follow the scheme "key=value" e.g.: JDK_1.4.2_HOME=/opt/IBMJava2-amd64-142

- for BUILD_TOOL_JDK_HOME you always specify the highest JDK,

- for JDK_HOME_PATHS you list the available JDKs.

- JRE is not allowed, specify always JDK!

For point B)

Regarding the build variant in your track: check the page 13 for the paramter com.sap.jdk.home_path_key as per the guide :

How To... Setup an NWDI Track for Composition Environment Developments

https://www.sdn.sap.com/irj/sdn/go/portal/prtroot/docs/library/uuid/7014086d-3fd9-2910-80bd-be3417810c6f

-

Summary:

A. The first part of the solution is then to doublecheck the CBS service parameters. CBS service must be restarted after changes.

B. The second part is to doublecheck the build variant in the track (see the Build Variants tab on the Track Data tab on the CMS webui - Landscape Configurator).

I recommend you to have

A) BUILD_TOOL_JDK_HOME = <highest available JDK, I recommend here to set the path to JDK1.5>

JDK_HOME_PATHS = JDK1.4.2_HOME=<path of jdk142>;JDK1.5.0_HOME=<path of jdk150>;default=<path of the JDK as default, set it to the same path as you did for 1.4.2_HOME>

B) set the com.sap.jdk.home_path_key in the build variant to 1.4.2_HOME, or leave it for the default. Do not forget to set this build variant explicitly for >= 7.1 tracks to JDK1.5.0_HOME

I hope this helps.

Best Regards,

Ervin