| Issue 101: | Building error using JDK 7 | |
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What steps will reproduce the problem? 1. Download clean 3.0.0-SNAPSHOT version from SVN 2. mvn -Dmaven.test.skip=true 3. [proguard] Error: Can't read [C:\Program Files\Java\jdk1.7.0\jre\lib\rt.jar] (Can't process class [com/oracle/net/Sdp$1.class] (Unsupported version number [51.0] for class format)) What is the expected output? What do you see instead? Build success What version of the product are you using? 3.0.0-SNAPSHOT On what operating system? JDK 7 on Windows 7 Please provide any additional information below. It looks like it is a problem in proguard 4.2 which doesn't support Java 7 class files. [proguard] ProGuard, version 4.2 [proguard] Reading program jar [C:\toro\microemu\microemu-cldc\target\microemu-cldc-3.0.0-SNAPSHOT.jar] (filtered) [proguard] Reading library jar [C:\Program Files\Java\jdk1.7.0\jre\lib\rt.jar] [proguard] Error: Can't read [C:\Program Files\Java\jdk1.7.0\jre\lib\rt.jar] (Can't process class [com/oracle/net/Sdp$1.class] (Unsupported version number [51.0] for class format))
Nov 1, 2011
Project Member
#1
bar...@gmail.com
Nov 25, 2014
i see the same issue but i have a larger version number, and also JSK 8, so the issue is similar to the one stated here : http://stackoverflow.com/questions/22670059/error-proguard-unsupported-class-version-number |