Re: target release conflicts with default source release


Thomas Hawtin wrote:
Doug Pardee wrote:
Redbeard wrote:
I'm trying to compile some code to release 1.4 because it needs to run
on some older Mac's that don't have Java 5. But I keep getting the
error message "target release conflicts with default source release 1.5"

Add "-source 1.4" to the javac command line.

You should also use -bootclasspath.

Consider this source code.

class Target {
public static void main(String[] args) {
new StringBuffer().append(new StringBuffer());
}
}

$ /usr/java/j2sdk1.4.2_11/bin/javac Target.java
$ ~/1.3/jdk1.3.1_18/jre/bin/java Target
Exception in thread "main" java.lang.NoSuchMethodError
at Target.main(Target.java:3)
$ /usr/java/j2sdk1.4.2_11/bin/javac -bootclasspath
~/1.3/jdk1.3.1_18/jre/lib/rt.jar Target.java
$ ~/1.3/jdk1.3.1_18/jre/bin/java Target
$

Tom Hawtin
--
Unemployed English Java programmer
http://jroller.com/page/tackline/
Thanks! My code compiled OK with just -source added, but some other
code might not. This will save me having to ask a similar question
again.

.

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