Error from ejbc: Compiler failed executable.exec

Question

Hi all,
I am using weblogic server 8.1 and encounter an error when I build my project, could anyone give me a helping hand? Thank you.
This is my Configuration:
Application Type: Empty Application
Project Type: EJB Project
Project Name: LibraryEJBProject
DataSource: LibraryDataSource using cgPool
Table: Library_Book under Schemas\Weblogic\Tables of pointbase server
EJB name: BookBean.EJB under LibraryEJBProject\book
When I right click LibraryEJBProject and click build, the following error comes out:
======================================================
Build project LibraryEJBProject started.
BUILD STARTED
build:
Created dir: C:\DOCUME~1\NICHOL~1.LAB\LOCALS~1\Temp\wlw_LibraryEJBProject_build
check-env:
WARNING: Checking to see if there is anything new to build...
Created dir: C:\DOCUME~1\NICHOL~1.LAB\LOCALS~1\Temp\wlw_ejb_crc
no-ejbgen:
run-build:
clean-modules:
removed module 'LibraryEJBProject.jar'
WARNING: Running EJBGen...
Loading source file C:\DOCUME~1\NICHOL~1.LAB\LOCALS~1\Temp\/wlw_LibraryEJBProject_build/../wlw_ejb_crc//ejbgentemp/Book\BookBean.java...
Constructing Javadoc information...
EJBGen 2.16
[Info:] Creating C:\DOCUME~1\NICHOL~1.LAB\LOCALS~1\Temp\/wlw_LibraryEJBProject_build/../wlw_ejb_crc//ejbgentemp\Book\Book.java
[Info:] Creating C:\DOCUME~1\NICHOL~1.LAB\LOCALS~1\Temp\/wlw_LibraryEJBProject_build/../wlw_ejb_crc//ejbgentemp\Book\BookHome.java
[Info:] Creating C:\DOCUME~1\NICHOL~1.LAB\LOCALS~1\Temp\/wlw_LibraryEJBProject_build/../wlw_ejb_crc//ejbgentemp\META-INF\ejb-jar.xml
[Info:] null [Bean] MAKE CLASS NAME G:BookHome P:Book N:BookHome
[Info:] null [Bean] MAKE CLASS NAME G:Book P:Book N:Book
[Info:] Creating C:\DOCUME~1\NICHOL~1.LAB\LOCALS~1\Temp\/wlw_LibraryEJBProject_build/../wlw_ejb_crc//ejbgentemp\META-INF\weblogic-ejb-jar.xml
[Info:] Creating C:\DOCUME~1\NICHOL~1.LAB\LOCALS~1\Temp\/wlw_LibraryEJBProject_build/../wlw_ejb_crc//ejbgentemp\META-INF\weblogic-cmp-rdbms-jar.xml
[Info:] Creating C:\DOCUME~1\NICHOL~1.LAB\LOCALS~1\Temp\/wlw_LibraryEJBProject_build/../wlw_ejb_crc//ejbgentemp\ejbgen-build.xml
post-ejbgen:
clean-ejbc:
Copying 7 files to C:\DOCUME~1\NICHOL~1.LAB\LOCALS~1\Temp\wlw_LibraryEJBProject_build
WARNING: EJBGen ok. Compiling...
runjavac:
Compiling 3 source files to C:\DOCUME~1\NICHOL~1.LAB\LOCALS~1\Temp\wlw_LibraryEJBProject_build
WARNING: All files compiled. Running ejbc...
<Dec 3, 2004 12:18:44 PM CST> <Warning> <EJB> <BEA-010212> <The EJB 'Book(Jar: C:\DOCUME~1\NICHOL~1.LAB\LOCALS~1\Temp\wlw_LibraryEJBProject_build)' contains at least one method without an explicit transaction attribute setting. The default transaction attribute of Supports will be used for the following methods: local-home[createQuery(), remove(java.lang.Object), findByPrimaryKey(java.lang.Integer), create(java.lang.Integer)] local[getBookID(), getIsbn(), getName(), setPublisher(java.lang.String), getPublisher(), setAuthor(java.lang.String), setBookID(java.lang.Integer), remove(), setIsbn(java.lang.String), getAuthor(), setName(java.lang.String)] >
C:\DOCUME~1\NICHOL~1.LAB\LOCALS~1\Temp\wlw_LibraryEJBProject_build\Book\Book_5wlu3i__WebLogic_CMP_RDBMS.java:76: cannot resolve symbol
symbol : class BookBean
location: interface Book.Book
public final class Book_5wlu3i__WebLogic_CMP_RDBMS extends Book.BookBean
^
C:\DOCUME~1\NICHOL~1.LAB\LOCALS~1\Temp\wlw_LibraryEJBProject_build\Book\Book_5wlu3i__WebLogic_CMP_RDBMS.java:760: cannot resolve symbol
symbol : class Book_5wlu3i_Intf
location: interface Book.Book
Book.Book_5wlu3i_Intf beanIntf)
^
C:\DOCUME~1\NICHOL~1.LAB\LOCALS~1\Temp\wlw_LibraryEJBProject_build\Book\Book_5wlu3i_Intf.java:39: cannot resolve symbol
symbol : class Book_5wlu3i_Intf
location: interface Book.Book
(java.sql.ResultSet rs, java.lang.Integer offset, Object __WL_pk, Book.Book_5wlu3i_Intf var)
^
C:\DOCUME~1\NICHOL~1.LAB\LOCALS~1\Temp\wlw_LibraryEJBProject_build\Book\Book_5wlu3i_ELOImpl.java:15: cannot resolve symbol
symbol : class Book
location: interface Book.Book
implements Book.Book, weblogic.utils.PlatformConstants, java.io.Serializable
^
C:\DOCUME~1\NICHOL~1.LAB\LOCALS~1\Temp\wlw_LibraryEJBProject_build\Book\Book_5wlu3i_LocalHomeImpl.java:13: cannot resolve symbol
symbol : class BookHome
location: interface Book.Book
implements Book.BookHome, weblogic.utils.PlatformConstants
^
C:\DOCUME~1\NICHOL~1.LAB\LOCALS~1\Temp\wlw_LibraryEJBProject_build\Book\Book_5wlu3i_LocalHomeImpl.java:76: cannot resolve symbol
symbol : class Book
location: interface Book.Book
public Book.Book create (java.lang.Integer arg0)
^
C:\DOCUME~1\NICHOL~1.LAB\LOCALS~1\Temp\wlw_LibraryEJBProject_build\Book\Book_5wlu3i_LocalHomeImpl.java:101: cannot resolve symbol
symbol : class Book
location: interface Book.Book
public Book.Book findByPrimaryKey(java.lang.Integer arg0)
^
C:\DOCUME~1\NICHOL~1.LAB\LOCALS~1\Temp\wlw_LibraryEJBProject_build\Book\Book_5wlu3i__WebLogic_CMP_RDBMS.java:244: cannot resolve symbol
symbol : variable super
location: class Book.Book_5wlu3i__WebLogic_CMP_RDBMS
super.setEntityContext(arg0);
^
C:\DOCUME~1\NICHOL~1.LAB\LOCALS~1\Temp\wlw_LibraryEJBProject_build\Book\Book_5wlu3i__WebLogic_CMP_RDBMS.java:257: cannot resolve symbol
symbol : variable super
location: class Book.Book_5wlu3i__WebLogic_CMP_RDBMS
super.unsetEntityContext();
^
C:\DOCUME~1\NICHOL~1.LAB\LOCALS~1\Temp\wlw_LibraryEJBProject_build\Book\Book_5wlu3i__WebLogic_CMP_RDBMS.java:269: cannot resolve symbol
symbol : variable super
location: class Book.Book_5wlu3i__WebLogic_CMP_RDBMS
super.ejbActivate();
^
C:\DOCUME~1\NICHOL~1.LAB\LOCALS~1\Temp\wlw_LibraryEJBProject_build\Book\Book_5wlu3i__WebLogic_CMP_RDBMS.java:490: cannot resolve symbol
symbol : class Book_5wlu3i__WebLogic_CMP_RDBMS
location: interface Book.Book
Book.Book_5wlu3i__WebLogic_CMP_RDBMS __WL_bean = null;
^
C:\DOCUME~1\NICHOL~1.LAB\LOCALS~1\Temp\wlw_LibraryEJBProject_build\Book\Book_5wlu3i__WebLogic_CMP_RDBMS.java:566: cannot resolve symbol
symbol : class Book_5wlu3i__WebLogic_CMP_RDBMS
location: interface Book.Book
__WL_bean = (Book.Book_5wlu3i__WebLogic_CMP_RDBMS)__WL_pm.getBeanFromRS(__WL_pk, __WL_rsInfo);
^
C:\DOCUME~1\NICHOL~1.LAB\LOCALS~1\Temp\wlw_LibraryEJBProject_build\Book\Book_5wlu3i__WebLogic_CMP_RDBMS.java:763: cannot resolve symbol
symbol : class Book_5wlu3i__WebLogic_CMP_RDBMS
location: interface Book.Book
Book.Book_5wlu3i__WebLogic_CMP_RDBMS __WL_bean = (Book.Book_5wlu3i__WebLogic_CMP_RDBMS)beanIntf;
^
C:\DOCUME~1\NICHOL~1.LAB\LOCALS~1\Temp\wlw_LibraryEJBProject_build\Book\Book_5wlu3i__WebLogic_CMP_RDBMS.java:763: cannot resolve symbol
symbol : class Book_5wlu3i__WebLogic_CMP_RDBMS
location: interface Book.Book
Book.Book_5wlu3i__WebLogic_CMP_RDBMS __WL_bean = (Book.Book_5wlu3i__WebLogic_CMP_RDBMS)beanIntf;
^
C:\DOCUME~1\NICHOL~1.LAB\LOCALS~1\Temp\wlw_LibraryEJBProject_build\Book\Book_5wlu3i__WebLogic_CMP_RDBMS.java:922: cannot resolve symbol
symbol : variable super
location: class Book.Book_5wlu3i__WebLogic_CMP_RDBMS
super.ejbLoad();
^
C:\DOCUME~1\NICHOL~1.LAB\LOCALS~1\Temp\wlw_LibraryEJBProject_build\Book\Book_5wlu3i__WebLogic_CMP_RDBMS.java:936: cannot resolve symbol
symbol : variable super
location: class Book.Book_5wlu3i__WebLogic_CMP_RDBMS
super.ejbStore();
^
C:\DOCUME~1\NICHOL~1.LAB\LOCALS~1\Temp\wlw_LibraryEJBProject_build\Book\Book_5wlu3i__WebLogic_CMP_RDBMS.java:950: cannot resolve symbol
symbol : variable super
location: class Book.Book_5wlu3i__WebLogic_CMP_RDBMS
super.ejbRemove();
^
C:\DOCUME~1\NICHOL~1.LAB\LOCALS~1\Temp\wlw_LibraryEJBProject_build\Book\Book_5wlu3i__WebLogic_CMP_RDBMS.java:1051: cannot resolve symbol
symbol : class Book_5wlu3i__WebLogic_CMP_RDBMS
location: interface Book.Book
case 0: __WL_loadGroup0FromRS(rs, offset, __WL_pk, (Book.Book_5wlu3i__WebLogic_CMP_RDBMS)eb); break;
^
C:\DOCUME~1\NICHOL~1.LAB\LOCALS~1\Temp\wlw_LibraryEJBProject_build\Book\Book_5wlu3i__WebLogic_CMP_RDBMS.java:1167: reference to + is ambiguous, both method +(java.lang.String,java.lang.String) in and method +(java.lang.String,int) in match
if(__WL_verbose) Debug.say("setting("+this+") 'author' using column " __WL_num ". Value is " + this.author);
^
C:\DOCUME~1\NICHOL~1.LAB\LOCALS~1\Temp\wlw_LibraryEJBProject_build\Book\Book_5wlu3i__WebLogic_CMP_RDBMS.java:1178: reference to + is ambiguous, both method +(java.lang.String,java.lang.String) in and method +(java.lang.String,int) in match
if(__WL_verbose) Debug.say("setting("+this+") 'isbn' using column " __WL_num ". Value is " + this.isbn);
^
C:\DOCUME~1\NICHOL~1.LAB\LOCALS~1\Temp\wlw_LibraryEJBProject_build\Book\Book_5wlu3i__WebLogic_CMP_RDBMS.java:1189: reference to + is ambiguous, both method +(java.lang.String,java.lang.String) in and method +(java.lang.String,int) in match
if(__WL_verbose) Debug.say("setting("+this+") 'name' using column " __WL_num ". Value is " + this.name);
^
C:\DOCUME~1\NICHOL~1.LAB\LOCALS~1\Temp\wlw_LibraryEJBProject_build\Book\Book_5wlu3i__WebLogic_CMP_RDBMS.java:1200: reference to + is ambiguous, both method +(java.lang.String,java.lang.String) in and method +(java.lang.String,int) in match
if(__WL_verbose) Debug.say("setting("+this+") 'publisher' using column " __WL_num ". Value is " + this.publisher);
^
C:\DOCUME~1\NICHOL~1.LAB\LOCALS~1\Temp\wlw_LibraryEJBProject_build\Book\Book_5wlu3i__WebLogic_CMP_RDBMS.java:1663: cannot resolve symbol
symbol : variable super
location: class Book.Book_5wlu3i__WebLogic_CMP_RDBMS
super.ejbCreate( arg0);
^
C:\DOCUME~1\NICHOL~1.LAB\LOCALS~1\Temp\wlw_LibraryEJBProject_build\Book\Book_5wlu3i__WebLogic_CMP_RDBMS.java:1702: cannot resolve symbol
symbol : variable super
location: class Book.Book_5wlu3i__WebLogic_CMP_RDBMS
super.ejbPostCreate( arg0);
^
C:\DOCUME~1\NICHOL~1.LAB\LOCALS~1\Temp\wlw_LibraryEJBProject_build\Book\Book_5wlu3i__WebLogic_CMP_RDBMS.java:1847: cannot resolve symbol
symbol : variable super
location: class Book.Book_5wlu3i__WebLogic_CMP_RDBMS
super.ejbRemove();
^
C:\DOCUME~1\NICHOL~1.LAB\LOCALS~1\Temp\wlw_LibraryEJBProject_build\Book\Book_5wlu3i__WebLogic_CMP_RDBMS.java:1907: cannot resolve symbol
symbol : variable super
location: class Book.Book_5wlu3i__WebLogic_CMP_RDBMS
super.ejbLoad();
^
C:\DOCUME~1\NICHOL~1.LAB\LOCALS~1\Temp\wlw_LibraryEJBProject_build\Book\Book_5wlu3i__WebLogic_CMP_RDBMS.java:1938: cannot resolve symbol
symbol : variable super
location: class Book.Book_5wlu3i__WebLogic_CMP_RDBMS
super.ejbStore();
^
C:\DOCUME~1\NICHOL~1.LAB\LOCALS~1\Temp\wlw_LibraryEJBProject_build\Book\Book_5wlu3i__WebLogic_CMP_RDBMS.java:2072: cannot resolve symbol
symbol : variable super
location: class Book.Book_5wlu3i__WebLogic_CMP_RDBMS
super.ejbPassivate();
^
C:\DOCUME~1\NICHOL~1.LAB\LOCALS~1\Temp\wlw_LibraryEJBProject_build\Book\Book_5wlu3i_LocalHomeImpl.java:80: cannot resolve symbol
symbol : class Book
location: interface Book.Book
return (Book.Book) super.create(md_ejbCreate_I,
^
C:\DOCUME~1\NICHOL~1.LAB\LOCALS~1\Temp\wlw_LibraryEJBProject_build\Book\Book_5wlu3i_LocalHomeImpl.java:105: cannot resolve symbol
symbol : class Book
location: interface Book.Book
return (Book.Book)
^
30 errors
ERROR: ERROR: Error from ejbc: Compiler failed executable.exec
ERROR: ERROR: ejbc couldn't invoke compiler
BUILD FAILED
ERROR: ERROR: Error from ejbc: Compiler failed executable.exec
ERROR: ERROR: ejbc couldn't invoke compiler
======================================================
What would be the cause of the error, would it be related to the way I create the datasource and the table? Or other causes, please help. Thank you.
Regards,
Nicholas Lok

Answer 1

It's difficult to tell solely by the messages. One there seems to be a problem finding a base class. One thing that I notice is that the package seems to contain 'book' with a lower case 'b' as in:
EJB name: BookBean.EJB under LibraryEJBProject\book
Whereas all the error messages are saying that they are having trouble finding something with a package name like 'Book' with a capital 'B'.
Perhaps that is the problem, the package has to be consistently 'book' or 'Book' and can't be both.
Hope I'm right and hope this helps.
thorick