Hi, I have tried to upgrade icu4j3.8 to icu4j4.0 for classlib trunk on my machine, below is the instructions for this upgrade: 1. download icu4j-4_0.jar and icu4j-charsets-4_0.jar from ICU official website http://icu-project.org/download/4.0.html 2. create icu4j_4.0 folder in trunk/depends/jars, copy icu4j-4_0.jar and icu4j-charsets-4_0.jar into icu4j_4.0 folder 3. create icu4j_4.0 folder in trunk/depends/manifests, copy META-INF foledr from icu4j_3.8 and use version 4.0 replace 3.8 in the MANIFEST.MF file. 4. apply configuration patch[1] for icu4.0 to change some configuration settings. 5. apply nio Charset patch[2] to avoid circular dependency error, if no this patch, nio_char unit test will report many circular dependency error[3]
I think maybe now we can upgrade icu4j 3.8 to icu4j 4.0. any issues welcom to discuss! [1] https://issues.apache.org/jira/secure/attachment/12400589/config_icu40.diff [2] https://issues.apache.org/jira/secure/attachment/12400590/Charset.diff [3] https://issues.apache.org/jira/secure/attachment/12400591/nio_char_errors.txt
