Ant error running javac compiler

[Al Johnston]

I know this has been discussed here before (several times). I implemented solutions I found in the forums to no avail. My ant file is performing as expected, up to a point. My build is failing here at line 101 of my code:

 
99	<target name="compile" description="Compiles src to ${bin.dir}">
100		<mkdir dir="${bin.dir}" />
101		<javac srcdir="${source.dir}" destdir="${bin.dir}" source="1.6.0_16" target="1.6.0_16" debug="on" fork="yes" deprecation="on">
102			<classpath refid="classpath.server"/>
103			<classpath refid="classpath.remote"/>
104		</javac>
105		<!-- copy in non-compiled files like props if needed -->
106		<copy todir="${bin.dir}">
107			<fileset dir="${source.dir}" excludes="**/*.java"/>
108		</copy>
109	</target>
   

The error message I'm receiving is:

   

...

The ' characters around the executable and arguments are
not part of the command.

BUILD FAILED
C:\Development\alfresco_communityversion_learning\client-extensions\build.xml:101: Error running javac.exe compiler
	at org.apache.tools.ant.taskdefs.compilers.DefaultCompilerAdapter.executeExternalCompile(DefaultCompilerAdapter.java:509)
	at org.apache.tools.ant.taskdefs.compilers.JavacExternal.execute(JavacExternal.java:61)
	at org.apache.tools.ant.taskdefs.Javac.compile(Javac.java:1065)
	at org.apache.tools.ant.taskdefs.Javac.execute(Javac.java:882)
	at org.apache.tools.ant.UnknownElement.execute(UnknownElement.java:288)
	at sun.reflect.GeneratedMethodAccessor1.invoke(Unknown Source)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
	at java.lang.reflect.Method.invoke(Unknown Source)
	at org.apache.tools.ant.dispatch.DispatchUtils.execute(DispatchUtils.java:106)

...

 

I am running ant from Eclipse with -debug on (right click on build.xml and run as ant).

I have set JAVA_HOME and PATH environment variables.

Thanks for your help!

Best,
Al

[Max White]

Hi,
Could you please specify the exact line numbers infront of the code you have pasted.
Thanks

[Al Johnston]

Sorry Max. I edited them in. Thanks for your help.

[Peter Johnson]

I suspect that your source and target values are bad - try using "1.6" for both (instead of 1.6.0_16).

If that does not help, run ant with the -v option - that might give you more information.

[Al Johnston]

Thanks Peter.

I am on Vista. When I rebooted my computer, suddenly my environment variables work. I know this because now my ant build.xml error is:

   
The ' characters around the executable and arguments are
not part of the command.
    [javac] javac: invalid target release: 1.6.0_16
    [javac] Usage: javac <options> <source files>
    [javac] use -help for a list of possible options

 

I am going to change to 1.6 and try again. But, here's what strange...

If I go to my command prompt and type javac -version, the output is "javac 1.6.0_16". Yet, according to my ant build, that's not a valid version (which is a problem since it's the only version I have installed). I'm going to change to 1.6 and see if that fixes the problem. I'll update the forum following the attempt.

Thanks!

Al

[Al Johnston]

Sure enough... changing to 1.6 instead of the actual name of the version, I got a good compile. Thanks!

[Peter Johnson]

[quote[If I go to my command prompt and type javac -version, the output is "javac 1.6.0_16". Yet, according to my ant build, that's not a valid version
The version of the JVM has nothing to do with the values allowed for 'source' and 'target'. For the latter, you use the specification version (or major release version) which is '1.3', 1.4', '1.5', '1.6' or '1.7'; depending on the version of javac you are using (you can't, for example, set the values to '1.7' when using a 1.6.0_16 javac).

[Al Johnston]

Got it. This was my first ever Ant compile. I really appreciate the help.

Best,
Al