download a build older than 3-7-2002
greetings
todd
Uma Munugala wrote:
>>Hi
>>
>>
>>I have written a servlet which implements SingleThreadModel
>>and used already existing public static syncronized classes to access
>>database.
>>these classes were used for standalone application.
>>does static synchronized has any problem with servlets????
>>
>>when I deployment my servlet and try to run it gives me error, its stack
>>trace is below.
>>
>>when login reaches to access static synchronized class member or static
>>synchronized class method Iam getting
>>problem.
>>
>>Funny thing is sames servlet and same code works in java web server. Do I
>>need to do some thing else in
>>tomcat 4.0.4-b1 to make it work. I tried with tomcat 4.0.3 also.
>>I have seen similar problem in archives but that work around does not work
>>for me.
>>
>>______________________________ Error _____________________________
>>
>>javax.servlet.ServletException: Invoker service() exception
>>at
>>
>org.apache.catalina.servlets.InvokerServlet.serveRequest(InvokerServlet.java
>
>>:508)
>>at
>>org.apache.catalina.servlets.InvokerServlet.doGet(InvokerServlet.java:180)
>>at javax.servlet.http.HttpServlet.service(HttpServlet.java:740)
>>at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
>>at
>>
>org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(Application
>
>>FilterChain.java:247)
>>at
>>
>org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterCh
>
>>ain.java:193)
>>at filters.ExampleFilter.doFilter(ExampleFilter.java:149)
>>at
>>
>org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(Application
>
>>FilterChain.java:213)
>>at
>>
>org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterCh
>
>>ain.java:193)
>>at filters.ExampleFilter.doFilter(ExampleFilter.java:149)
>>at
>>
>org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(Application
>
>>FilterChain.java:213)
>>at
>>
>org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterCh
>
>>ain.java:193)
>>at
>>
>org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.ja
>
>>va:243)
>>at
>>
>org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.java:5
>
>>66)
>>at
>>
>org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:472)
>
>>at
>>org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:943)
>>at
>>
>org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.ja
>
>>va:190)
>>at
>>
>org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.java:5
>
>>66)
>>at
>>
>org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase
>
>>.java:475)
>>at
>>
>org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.java:5
>
>>64)
>>at
>>
>org.apache.catalina.valves.CertificatesValve.invoke(CertificatesValve.java:2
>
>>46)
>>at
>>
>org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.java:5
>
>>64)
>>at
>>
>org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:472)
>
>>at
>>org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:943)
>>at
>>org.apache.catalina.core.StandardContext.invoke(StandardContext.java:2347)
>>at
>>
>org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:180
>
>>)
>>at
>>
>org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.java:5
>
>>66)
>>at
>>
>org.apache.catalina.valves.ErrorDispatcherValve.invoke(ErrorDispatcherValve.
>
>>java:170)
>>at
>>
>org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.java:5
>
>>64)
>>at
>>
>org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:170
>
>>)
>>at
>>
>org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.java:5
>
>>64)
>>at
>>org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:468)
>>at
>>
>org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.java:5
>
>>64)
>>at
>>
>org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:472)
>
>>at
>>org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:943)
>>at
>>
>org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java
>
>>:174)
>>at
>>
>org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.java:5
>
>>66)
>>at
>>
>org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:472)
>
>>at
>>org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:943)
>>at
>>
>org.apache.catalina.connector.http.HttpProcessor.process(HttpProcessor.java:
>
>>1017)
>>at
>>
>org.apache.catalina.connector.http.HttpProcessor.run(HttpProcessor.java:1115
>
>>)
>>at java.lang.Thread.run(Thread.java:484)
>>
>>
>>root cause
>>
>>java.lang.ClassFormatError: com/CellFusion/Relational/RelConnection
>>
>(Illegal
>
>>Variable name "")
>>at java.lang.ClassLoader.defineClass0(Native Method)
>>at java.lang.ClassLoader.defineClass(ClassLoader.java:486)
>>at
>>java.security.SecureClassLoader.defineClass(SecureClassLoader.java:111)
>>at
>>
>org.apache.catalina.loader.WebappClassLoader.findClassInternal(WebappClassLo
>
>>ader.java:1643)
>>at
>>
>org.apache.catalina.loader.WebappClassLoader.findClass(WebappClassLoader.jav
>
>>a:937)
>>at
>>
>org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.jav
>
>>a:1372)
>>at
>>
>org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.jav
>
>>a:1254)
>>at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:313)
>>at
>>
>com.CellFusion.Relational.RelTransaction.beginNewTransaction(RelTransaction.
>
>>java:22)
>>at Login.doGet(Login.java:133)
>>at javax.servlet.http.HttpServlet.service(HttpServlet.java:740)
>>at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
>>at
>>
>org.apache.catalina.servlets.InvokerServlet.serveRequest(InvokerServlet.java
>
>>:450)
>>at
>>org.apache.catalina.servlets.InvokerServlet.doGet(InvokerServlet.java:180)
>>at javax.servlet.http.HttpServlet.service(HttpServlet.java:740)
>>at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
>>at
>>
>org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(Application
>
>>FilterChain.java:247)
>>at
>>
>org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterCh
>
>>ain.java:193)
>>at filters.ExampleFilter.doFilter(ExampleFilter.java:149)
>>at
>>
>org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(Application
>
>>FilterChain.java:213)
>>at
>>
>org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterCh
>
>>ain.java:193)
>>at filters.ExampleFilter.doFilter(ExampleFilter.java:149)
>>at
>>
>org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(Application
>
>>FilterChain.java:213)
>>at
>>
>org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterCh
>
>>ain.java:193)
>>at
>>
>org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.ja
>
>>va:243)
>>at
>>
>org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.java:5
>
>>66)
>>at
>>
>org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:472)
>
>>at
>>org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:943)
>>at
>>
>org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.ja
>
>>va:190)
>>at
>>
>org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.java:5
>
>>66)
>>at
>>
>org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase
>
>>.java:475)
>>at
>>
>org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.java:5
>
>>64)
>>at
>>
>org.apache.catalina.valves.CertificatesValve.invoke(CertificatesValve.java:2
>
>>46)
>>at
>>
>org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.java:5
>
>>64)
>>at
>>
>org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:472)
>
>>at
>>org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:943)
>>at
>>org.apache.catalina.core.StandardContext.invoke(StandardContext.java:2347)
>>at
>>
>org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:180
>
>>)
>>at
>>
>org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.java:5
>
>>66)
>>at
>>
>org.apache.catalina.valves.ErrorDispatcherValve.invoke(ErrorDispatcherValve.
>
>>java:170)
>>at
>>
>org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.java:5
>
>>64)
>>at
>>
>org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:170
>
>>)
>>at
>>
>org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.java:5
>
>>64)
>>at
>>org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:468)
>>at
>>
>org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.java:5
>
>>64)
>>at
>>
>org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:472)
>
>>at
>>org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:943)
>>at
>>
>org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java
>
>>:174)
>>at
>>
>org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.java:5
>
>>66)
>>at
>>
>org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:472)
>
>>at
>>org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:943)
>>at
>>
>org.apache.catalina.connector.http.HttpProcessor.process(HttpProcessor.java:
>
>>1017)
>>at
>>
>org.apache.catalina.connector.http.HttpProcessor.run(HttpProcessor.java:1115
>
>>)
>>at java.lang.Thread.run(Thread.java:484)
>>
>>
>>
>>
>>
>>______________________________code
>>description___________________________________________
>>
>>public class Login extends HttpServlet implements SingleThreadModel
>>
>>
>>In this one Iam trying to access oracle database using custom developed
>>classes
>>
>>
>>
>>/**
>> * defineCFDatabase creates the Data Dictionary for 'cf'
>> **/
>>public static synchronized boolean defineCFDatabase()
>>{
>>
>>try{
>>if (!gDBInitialized) {
>>
>>gDBInitialized = dbCFDefinition.defineCFDatabase( false );
>>if (gDBInitialized) {
>>
>>gDB = dbCFDefinition.getDatabase();
>>dboCF = gDB;
>>}
>>}
>>
>>if (gDBInitialized && !gVariablesInitialized) {
>>gVariablesInitialized = initializeVariables();
>>}
>>} catch(Exception e) {
>>Util.log("********* Exception :" + e.toString());
>>}
>>
>>return gDBInitialized && gVariablesInitialized;
>>}
>>
>>In dbCFDefinition class
>>public static synchronized boolean defineCFDatabase( boolean
>>
>forceAllTables
>
>>){
>>
>>Access a class called DscDomain trying to get defaultId;
>>
>>return boolean
>>}
>>
>>
>>DscDomain class calls a method as follows
>>
>>
>>public String getGenericType(String dataType , int length) {
>>
>>if(!RelConnection.gDefaultConnectionIsOracle && mSQLServer){
>>//now only for SQLServer
>>if (dataType.toLowerCase().equals("varchar2")){
>>dataType = "varchar";
>>}
>>else if (dataType.toLowerCase().equals("number")){
>>dataType = "numeric";
>>}
>>else if (dataType.toLowerCase().equals("date")){
>>dataType = "datetime";
>>}
>>else{
>>dataType = "varchar";
>>length = 0;
>>}
>>
>>}
>>if ( length == 0) {
>>Util.log("------- 2 if dataType" + dataType + "
>>length: " + length);
>>return dataType;
>>
>>}
>>else {
>> Util.log("------- else dataType" + dataType + " length:
>>" + length);
>>return dataType + "(" + length + ")" ;
>>}
>>}
>>
>>
>>when RelConnection.gDefaultConnectionIsOracle is accessed Iam getting
>>problem
>>java.lang.ClassFormatError: com/CellFusion/Relational/RelConnection
>>(Illegal Variable name "")
>>
>>RelConnection is a public class with static members and static methods
>>In the same package it is able to get other methods. when it is trying to
>>access static variable iam getting this error.
>>
>>gDefaultConnectionIsOracle is defined as
>>static public boolean gDefaultConnectionIsOracle = false;
>>
>>
>>Thanks a lot
>>Umamaheswar
>>
>>
>>
>>
>>--
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>>
>
>
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