"FATAL ERROR in native method: Expected a string"

I installed tomcat on an AS400. This box has jdk1.2.  The is the first time we 
try run Java code on this box. I started tomcat and it I got the error "FATAL 
ERROR in native method: Expected a string".   It appears that it failed when 
the system tried to attaching JVAPGM to tomcat jar files because the failing 
point is where I usually see "Attaching Java program to xxx.jar file" messages. 
      

Any ideas? Do I miss something on this as400?

Thanks.

Bruce.              

 

 

 QSH console messages:

                                        

Using Classpath: 
/tomcat4112/bin/bootstrap.jar:/QIBM/ProdData/Java400/jdk12/lib/tools.jar        
                                

Using CATALINA_BASE: /tomcat4112                                                
          

Using CATALINA_HOME: /tomcat4112                                                
          

Using JAVA_HOME: /QIBM/ProdData/Java400/jdk12                                   
          

[INFO] Registry - -Loading registry information                                 
          

[INFO] Registry - -Creating new Registry instance                               
          

[INFO] Registry - -Creating MBeanServer                                         
          

[INFO] Http11Protocol - -Initializing Coyote HTTP/1.1 on port 8080              
          

Starting service Tomcat-Standalone                                              
          

Apache Tomcat/4.1.12      

FATAL ERROR in native method: Expected a string                                 
          

java/io/File.deleteOnExit()V+19 (File.java:739)                                 
           

sun/net/www/protocol/jar/JarFileFactory$1.run()Ljava/lang/Object;+20 
(JarFileFactory.java:153)                             

sun/net/www/protocol/jar/JarFileFactory.retrieve(Ljava/net/URL;)Ljava/util/jar/JarFile;+30
 arFileFactory.java:146)                
sun/net/www/protocol/jar/JarFileFactory.get(Ljava/net/URL;)Ljava/util/jar/JarFile;+85
 (JarFileFactory.java:86)             


sun/net/www/protocol/jar/JarURLConnection.connect()V+15(JarURLConnection.java:92)
         
sun/net/www/protocol/jar/JarURLConnection.getJarFile()Ljava/util/jar/JarFile;+1 
(JarURLConnection.java:76)   
org/apache/catalina/startup/ContextConfig.tldScanJar(Ljava/lang/String;)V+0 
(ContextConfig.java:888)                       

org/apache/catalina/startup/ContextConfig.tldScan()V+0 (ContextConfig.java:861) 
          org/apache/catalina/startup/ContextConfig.start()V+0 
(ContextConfig.java:620)             
org/apache/catalina/startup/ContextConfig.lifecycleEvent(Lorg/apache/catalina/LifecycleEvent;)V+0
 (ContextConfig.java:230) 

org/apache/catalina/util/LifecycleSupport.fireLifecycleEvent(Ljava/lang/String;Ljava/lang/Object;)V+0
 (LifecycleSupport.java:160)                                                  

org/apache/catalina/core/StandardContext.start()V+0 (StandardContext.java:3362) 
          org/apache/catalina/core/ContainerBase.start()V+0 
(ContainerBase.java:1153)               

org/apache/catalina/core/StandardHost.start()V+0 (StandardHost.java:722)        
          org/apache/catalina/core/ContainerBase.start()V+0 
(ContainerBase.java:1153)               
org/apache/catalina/core/StandardEngine.start()V+0 (StandardEngine.java:344)