"major.minor version '49.0' is too recent..." - where did I take the wrong version of what?

[Dr. Exner]

My axis-j 1.3 installation with stand alone tomcat 5.5.15 and JRE 1.5.0_06 does not work:   According to the instructions I copied activation.jar from jaf-1_0_2-upd2.zip, mailapi.jar from javamail-1_3_3_01.zip and xmlsec-1.3.0.jar into the ..\Tomcat 5.5\shared\lib. Checking the axis "validation" link I got the "happy axis" page, but selecting the "call" link I get errors like:   "Invalid class file format in C:\Programme\Java\jre1.5.0_06\lib\rt.jar(java/util/Enumeration.class).  The major.minor version '49.0' is too recent for this tool to understand." (details see below)   Moving back to JRE 1.4.2_10 even worse the whole axis startpage did not work any longer and I got much more "major.minor version '49.0' is too recent" errors. Auto-updating the JRE back to 1.5.0_6 (b05) the axis startpage still does not work anymore.   ==> So where did I take the wrong version of what? <==     --------------------- error message with initial installation using jre1.5.0_06: -------------------------------------------- More details on the error message:   - Exception: AxisFault  faultCode: {http://xml.apache.org/axis/}Server.compileError  faultSubcode:  faultString: Error while compiling:  C:\Programme\Apache\Tomcat 5.5\webapps\axis\WEB-INF\jwsClasses\EchoHeaders.java  faultActor:  faultNode:  faultDetail:  {}Errors:Error compiling C:\Programme\Apache\Tomcat 5.5\webapps\axis\WEB-INF\jwsClasses\EchoHeaders.java: Line 0, column 0: could not parse error message:  Note: sun.tools.javac.Main has been deprecated. error: Invalid class file format in C:\Programme\Java\jre1.5.0_06\lib\rt.jar(java/util/Enumeration.class).  The major.minor version '49.0' is too recent for this tool to understand. C:\Programme\Apache\Tomcat 5.5\webapps\axis\WEB-INF\jwsClasses\EchoHeaders.java:22: Class java.util.Enumeration not found in import.   Line 0, column 0: could not parse error message:  import java.util.Enumeration;        ^ error: Invalid class file format in C:\Programme\Java\jre1.5.0_06\lib\rt.jar(java/util/ArrayList.class).  The major.minor version '49.0' is too recent for this tool to understand.   Line 23, column 7: Class java.util.ArrayList not found in import. Line 0, column 0: could not parse error message:  error: Invalid class file format in C:\Programme\Java\jre1.5.0_06\lib\rt.jar(java/util/Iterator.class).  The major.minor version '49.0' is too recent for this tool to understand. C:\Programme\Apache\Tomcat 5.5\webapps\axis\WEB-INF\jwsClasses\EchoHeaders.java:24: Class java.util.Iterator not found in import. import java.util.Iterator;   Line 0, column 0: could not parse error message:         ^ error: Invalid class file format in C:\Programme\Java\jre1.5.0_06\lib\rt.jar(java/lang/Object.class).  The major.minor version '49.0' is too recent for this tool to understand. C:\Programme\Apache\Tomcat 5.5\webapps\axis\WEB-INF\jwsClasses\EchoHeaders.java:29: Superclass java.lang.Object of class EchoHeaders not found.   Line 0, column 0: no more tokens - could not parse error message:  public class EchoHeaders {              ^ 8 errors, 1 warning