Hello everybody, I tried to download and ant the ex04_1 example, but this is the result. | C:\workbook2\ex04_1>ant | Buildfile: build.xml | | prepare: | [mkdir] Created dir: C:\workbook2\ex04_1\build | [mkdir] Created dir: C:\workbook2\ex04_1\build\classes | | compile: | [javac] Compiling 5 source files to C:\workbook2\ex04_1\build\classes | [javac] C:\workbook2\ex04_1\src\main\com\titan\cabin\CabinBean.java:3: canno | t access javax.ejb.EntityContext | [javac] bad class file: c:\jboss-4.2.2.GA\client\jboss-j2ee.jar(javax/ejb/En | tityContext.class) | [javac] class file has wrong version 49.0, should be 47.0 | [javac] Please remove or make sure it appears in the correct subdirectory of | the classpath. | [javac] import javax.ejb.EntityContext; | [javac] ^ | [javac] 1 error | | BUILD FAILED | C:\workbook2\ex04_1\build.xml:45: Compile failed; see the compiler error output | for details. | | Total time: 6 seconds | | any suggestion? what is my mistake? View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4167647#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...