Jdk 1.6 will not compile: cannot access java.lang.Object

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rzeira@comcast.net - 17 Jan 2008 15:11 GMT

Hi all,

I just installed Jdk 1.6 update 4 and tried my first compilation. I
compiled something that previously compiled easily. However, with Jdk
1.6 I got the error:
SomeFile.java:45: cannot access java.lang.Object
bad class file: C:\Tools\Jdk16\jre\lib\rt.jar(java/lang/Object.class)
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.
private UserRec currRec = null;

I compile directly with javac from a DOS prompt. I tried to compile
few other files and got the same results.

Please help!

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Juha Laiho - 17 Jan 2008 16:37 GMT

rzeira@comcast.net said:

>I just installed Jdk 1.6 update 4 and tried my first compilation. I
>compiled something that previously compiled easily. However, with Jdk
[quoted text clipped - 8 lines]
>I compile directly with javac from a DOS prompt. I tried to compile
>few other files and got the same results.

Looks much like the "javac" executable you're running is from some
older JDK version. Check each directory on your %PATH% to find out
which javac you're actually running.

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Wolf a.k.a. Juha Laiho Espoo, Finland
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rzeira@comcast.net - 17 Jan 2008 16:52 GMT

Thanks for you reply!

However, I have only one javac.exe which came with JDK 1.6.0_04 and is
dated December 14, 2007. I think this version is defective. Does
anybody knows how to get one that is fixed?

Thanks

Reply to this Message

Roedy Green - 17 Jan 2008 18:20 GMT

> Does
>anybody knows how to get one that is fixed?

Follow the instructions at
http://mindprod.com/jgloss/jdk.html#UPGRADING

don't multipost.

See http://mindprod.com/jgloss/multiposting.html

Signature

Roedy Green, Canadian Mind Products
The Java Glossary, http://mindprod.com

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Jdk 1.6 will not compile: cannot access java.lang.Object

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