version « class file « Java I/O Q&A





1. how to check the jdk version used to compile a .class file    stackoverflow.com

I'm trying to debug a "Bad version number in .class file' error in java, is there a way for me to check which version the .class files are? I'm using Jre1.5.0_6, but ...

2. Java API to find out the JDK version a class file is compiled for?    stackoverflow.com

Are there any Java APIs to find out the JDK version a class file is compiled for? Of course there is the javap tool to find out the major version as ...

3. Check Java compiler version(jdk version) of compiled class file    stackoverflow.com

Possible Duplicate:
how to check the jdk version used to compile a .class file
Hello, I have lots of third party class files and i would like ...

4. How can I know with which Java version a .class file is got was compiled?    stackoverflow.com

I'm trying to find out how I can determine the version of a .class file by looking at its binary data. I know that using javap will tell me the version ...

5. Should .class files be put under version control?    stackoverflow.com

I ran into a few synchronization issues where I had to checkout my project a few times over. Is it good practice for my team to ignore committing their .class files? A number ...

6. class file has wrong version 48.0, should be 47.0    coderanch.com

Hi, I am using WSAD 5.1.2 and the server is Websphere Test Environment 5.0. We took an API from net which is used for drawing chars and graphs. But this uses JDK 1.4. (javax.nio.ImageIO etc..) or higher. But WSAD 5.1.2 defaults to JDK 1.3. So we went to Window-->Preferences--> Installed JRE's --> and added a new JRE and started pointing to ...

7. Java version from .class file?    coderanch.com

8. java version of .class file    coderanch.com

Hi there, i have a question concerning the jdk version i used to compile and jar my project. is there a way to find out from the jar file with what version the project has been compiled ? the "Created-By:" (example : Created-By: 1.5.0_09-b01 (Sun Microsystems Inc.)) from the manifest file in my jar is the version of my jar tool. ...

9. How to find the version of given class file?    coderanch.com

You can't. You can only determine for which version of the JVM the code was compiled. Generally, javac will generate bytecode for the JVM version that it shipped with (i.e., javac in Java 5 will create Java 5 bytecode), but that can be changed using the -source and -target switches. Bytes 5 through 8 of a class file contain the minor ...





10. unrecognised class file version    coderanch.com

Hi! I'm pretty sure the reason for your problem is that you're using a GNU Java compiler instead of the one located in your JDK installation. Unfortunately I don't have any experience with this compiler but a lot more with linux and Java development on linux and this error message sounds like a problem with gcj (GNU compiler) or a library ...

11. Unexpected java version in class file    coderanch.com

Hi All, Here is what I did: 1. On my windows XP machine I went to dir--> C:\Program Files\Java\jdk1.4.2_15\bin 2. The java version is 1.4 when I ran java -version. -- correct! 3. I compiled a java file using javac testjava.java without any error. 4. I checked the class file and found the major version number is 2E(46) which is jdk ...

12. class file has wrong version 50.0, should be 49.0    coderanch.com

Can you please provide the full error you're getting? When are you getting this, during compilation? Is a stack trace provided? Can you please show this? (use code tags) As far as the import goes, what is the fully-qualified package name of the objects you are referencing in your source file? That will tell you what you want for import statements. ...

13. class file has wrong version 49.0, should be 48.0    forums.oracle.com

Hi I am using ssh to log into my school server and access my filestore. now when I attempt to compile a program i get the following message class file has wrong version 49.0, should be 48.0 Please remove or make sure it appears in the correct subdirectory of the classpath. but it compiles fine on the school machines. Any idea ...

14. JDK version - Class File version    forums.oracle.com





17. How to find JDK version from Class Class File    forums.oracle.com

The first two bytes of the class file encode the version number of the "target version" of that class. Google around and you should find an explanation of how to interpret those first two bytes. If I recall correctly 49 was 1.5. I've read something on this, just can't recall where. There's every chance it was on this forum, so try ...

18. class file has wrong version 49.0, should be 47.0    forums.oracle.com

Hi I did try but not able to, because i don't have certain package I am not able to find the download (found one but it doesn't allow me to download as it is for USA/Canada citizens) Kindly help! pls show me where i can download those packages. thanks The packages i need are: import java.security.*; import javax.crypto.*; import javax.crypto.spec.*; import ...

19. How can you determine the Java Version used to compile a class file?    forums.oracle.com

Is it possible (and if so, how) to determine the version of Java used to compile a class file? I've recently had to install both JDK 1.5 and JDK 1.4 on my system, and although I've got my paths set, etc. I'd like to check my class files after compiling so I can rest assured that they were compiled with the ...

20. class file has wrong version 49.0, should be 48.0    forums.oracle.com

hi, i have been facing the problem whan i am compiling my java class i am using java version "1.5.0_06" Java(TM) 2 Runtime Environment, Standard Edition (build 1.5.0_06-b05) Java HotSpot(TM) Client VM (build 1.5.0_06-b05, mixed mode, sharing) and the error is like class file has wrong version 49.0, should be 48.0 plz help me out

22. Can .class file size for a java file vary with J2SE2 versions ?    forums.oracle.com

Hi , We are using JDK 1.4 in our organisation .There is high change that the developers have not used the same sub-versions of Jdk 1.4 ; for example one developer may have used j2sdk1.4.1_01 , while another developer may have used j2sdk1.4.2_05. Is it possible that the same java code could yield class files of different sizes from the 2 ...

23. Java Version of .class files    forums.oracle.com

24. class file has wrong version 49.0, should be 48.0    forums.oracle.com

You're still running an older version of the JVM. I think 48 is 1.4 (though it might be 1.5). You say "with jre1.6", but you must still have an old 1.4 or 1.5 around that's being picked up, but class files that were compiled with a newer version. If you're doing this on the command line, make sure your PATH variable ...

25. how to know cvs version of java class or source file?    forums.oracle.com

What are you trying to do exactly? Do you mean you want to know the CVS version of the Java source file for a class at runtime inside that same class? Or are you trying to write a CVS client? In that case, you might want to take a look at an existing Java CVS client (I know there is one ...

26. version of the class file    forums.oracle.com

27. Identify Java version from CLASS file    forums.oracle.com