Java.lang.NullPointerException for Oracle EJB

From: Sean Zhang <sean_at_cnfei.com>
Date: Fri, 18 Aug 2000 23:13:59 -0400
Message-ID: <64nn5.26$N2.1840@firenze>

Hi, Everyone,

Our Database system: Sun E3000 Solaris 2.6 with Oracle 8.1.6.0.0. Tool: Oracle Jdeveloper 3.1 on Windows NT.

Problem: Tried many times to work out the tutorial example "Online Orders Application",
for which everything was fine until I reached the Deployment step: to deploy the Business
component as EJB on Oracle 8i. After creating/loading a lot of classes, I always got
the following messages:

"Generating Jar File...done
Loading EJB Jar file and Comm Stubs Jar file...done Generating EJBHome and EJBObject on the server... Compilation errors in
oracle/aurora/ejb/gen/_test_bc4j_ejb_OnlineOrders/OnlineOrdersModule/EjbObje ct_RemoteOnlineOrdersModule:ORA-29535: source requires recompilationjava.lang.NullPointerException at

sun.tools.java.Environment.error(Environment.java)  at
sun.tools.java.Environment.error(Environment.java)  at
sun.tools.java.Environment.error(Environment.java)  at
sun.tools.java.OracleClassLocator.getHandle(OracleClassLocator.java)  at
sun.tools.java.OracleClassLocator.getLocationEntry(OracleClassLocator.java)

at
sun.tools.java.OracleClassLocator.getClassLocation(OracleClassLocator.java) at
sun.tools.java.OracleClassLocator.getClassLocation(OracleClassLocator.java) at
sun.tools.java.OracleClassLocator.getBinaryClassLocation(OracleClassLocator. java) at
sun.tools.java.OracleClassLocator.getBinaryClassLocation(OracleClassLocator.

java)  at sun.tools.java.LocatorFinder.find(LocatorFinderFactory.java)  at
oracle.aurora.compiler.SqljInterface$MyFinder.find(SqljInterface.java)  at
oracle.aurora.compiler.MemoizedFi

der.find(MemoizedFinder.java) at
oracle.aurora.compiler.CacheUsingFinders$Key.<init>(CacheUsingFinders.java) at oracle.aurora.compiler.CacheUsingFinders.get(CacheUsingFinders.java) at oracle.aurora.compiler.CacheUsingFinders.get(CacheUsingFinders.java) at

sun.tools.javac.AuroraEnvironment.classExists(AuroraEnvironment.java)  at
sun.tools.java.Environment.classExists(Environment.java)  at
sun.tools.java.Environment.classExists(Environment.java)  at
sun.tools.java.Environment.classExists(Environment.java)  at
sun.tools.java.Environment.resolvePackageQualifiedName(Environment.java)  at
sun.tools.java.ClassDefinition.resolveName(ClassDefinition.java)  at
sun.tools.java.Environment.resolveNames(Environment.java)  at
sun.tools.java.Environment.resolveNames(Environment.java)  at
sun.tools.javac.SourceMember.resolveTypeStructure(SourceMember.java)  at
sun.tools.javac.SourceClass.resolveTypeStructure(SourceClass.java)  at
sun.tools.javac.SourceClass.basicCheck(SourceClass.java)  at
sun.tools.java.ClassDeclaration.

etClassDefinition(ClassDeclaration.java) at

oracle.aurora.jdkcompiler.JdkDriver.compile(JdkDriver.java)  at
oracle.aurora.rdbms.Compiler.doCompile(Compiler.java)  at
oracle.aurora.rdbms.Compiler.compile(Compiler.java)<no file>: An exception

has occurred in the compiler; This is a compiler bug not an error in source. Info: 1 errors
*** Errors occurred while deploying the EJB to JServer ***

Deployment completed *** "

What the messages tell me is that It's a COMPILER BUG. However, I don't know it's the
JDK on Client side ( Jdeveloper ) or on the server side ( Oracle 8i EJB server ) has the bug.

Has anybody encountered similar problem before? Please help, any suggestions and advises are
greatly appreciated. Thank you.

sean zhang
seam_at_cnfei.com Received on Fri Aug 18 2000 - 22:13:59 CDT