Knut Anders Hatlen wrote:
Rick Hillegas <[email protected]> writes:

I have just sync'd to the head of the trunk and the build is now
broken for me:

   [javac] Note: Some input files use or override a deprecated API.
   [javac] Note: Recompile with -Xlint:deprecation for details.
    [java] Warning: Lookahead adequacy checking not being performed
since option LOOKAHEAD is more than 1.  Set option FORCE_LA_CHECK to
true to force checking.
    [java] Warning: ParseException.java: File is obsolete.  Please
rename or delete this file so that a new one can be generated for you.
    [java] Warning: Token.java: File is obsolete.  Please rename or
delete this file so that a new one can be generated for you.
    [java] Warning: CharStream.java: File is obsolete.  Please rename
or delete this file so that a new one can be generated for you.
   [javac]
/Users/rh161140/derby/mainline/trunk/java/engine/org/apache/derby/iapi/jdbc/FailedProperties40.java:27:
cannot access java.util.HashMap
   [javac] bad class file:
/System/Library/Frameworks/JavaVM.framework/Versions/1.6/Classes/alt-rt.jar(java/util/HashMap.class)
   [javac] class file has wrong version 50.0, should be 49.0
   [javac] Please remove or make sure it appears in the correct
subdirectory of the classpath.
   [javac] import java.util.HashMap;
   [javac]                  ^
   [javac] 1 error

BUILD FAILED

Hi Rick,

It looks like your ant is using the Java 5 compiler (check JAVA_HOME),
which doesn't know how to access read classes in the Java 6 class
library. Could that be the case? Does it work if you point JAVA_HOME to
a JDK 6 installation?

With some older releases of Sun's JDK 6, such a combination would work
because the class libraries used the Java 5 class format. This has
changed in later releases of JDK 6, so now you cannot access the Java 6
class library from Java 5.

Thanks, Knut. I think this clue will save me a lot of time. Yes, Derby builds cleanly for me with the Java 6 compiler. My Java installation was updated yesterday so I may have caught up with the problem you're describing.

Thanks,
-Rick

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