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From Peter Reilly <peterrei...@apache.org>
Subject Re: AW: AW: ClassConstants filterreader fails with IOException
Date Wed, 16 Feb 2005 14:55:59 GMT
I see the same underlying exception,
I used:
                } catch (InvocationTargetException t) {
                    throw new BuildException(t.getTargetException());
                }
and saw:
.
.
.
--- Nested Exception ---
java.lang.ClassFormatError:  is not a Java .class file
    at org.apache.bcel.classfile.ClassParser.readID(ClassParser.java:287)
    at org.apache.bcel.classfile.ClassParser.parse(ClassParser.java:156)

.
Peter

Ivan Ivanov wrote:

>--- Jan.Materne@rzf.fin-nrw.de wrote:
>
>  
>
>>I had a look into the source of <classconstants> -
>>all exceptions are
>>catched and
>>a new IOEx with the message only is thrown. Maybe
>>for debug purposes we
>>could provide
>>the complete stacktrace - especially here it could
>>be useful, I think.
>>    
>>
>
>I added them to see what is the exact exception. At
>line 127 in ClassConstants.java I changed the catch
>clauses to:
>
>} catch (ClassNotFoundException cnfe) {
>    cnfe.printStackTrace();
>    throw new IOException(cnfe.getMessage());
>} catch (NoSuchMethodException nsme) {
>    nsme.printStackTrace();
>    throw new IOException(nsme.getMessage());
>} catch (IllegalAccessException iae) {
>    iae.printStackTrace();
>    throw new IOException(iae.getMessage());
>} catch (IllegalArgumentException iarge) {
>    iarge.printStackTrace();
>    throw new IOException(iarge.getMessage());
>} catch (InvocationTargetException ite) {
>    ite.printStackTrace();
>    throw new IOException(ite.getMessage());
>}
>
>By the way, I would also suggest these catch clauses
>be replaced by one catch clause:
>} catch (Exception e) {
>  e.printStackTrace();
>  //or
>  //getProject().log(e.getMessage(), Project.MSG_ERR);
>  throw new IOException(e.getMessage());
>}
>
>
>After rebuilding ant () and running the script from my
>previous message, the output is 
>Buildfile: /home/rambius/drafts/ant/constants.xml
>[loadproperties]
>java.lang.reflect.InvocationTargetException
>[loadproperties]        at
>sun.reflect.NativeMethodAccessorImpl.invoke0(Native
>Method)
>[loadproperties]        at
>sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
>[loadproperties]        at
>sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
>[loadproperties]        at
>java.lang.reflect.Method.invoke(Method.java:324)
>[loadproperties]        at
>org.apache.tools.ant.filters.ClassConstants.read(ClassConstants.java:120)
>[loadproperties]        at
>org.apache.tools.ant.filters.BaseFilterReader.read(BaseFilterReader.java:86)
>[loadproperties]        at
>java.io.Reader.read(Reader.java:100)
>[loadproperties]        at
>org.apache.tools.ant.util.FileUtils.readFully(FileUtils.java:1110)
>[loadproperties]        at
>org.apache.tools.ant.filters.util.ChainReaderHelper.readFully(ChainReaderHelper.java:231)
>[loadproperties]        at
>org.apache.tools.ant.taskdefs.LoadProperties.execute(LoadProperties.java:204)
>[loadproperties]        at
>org.apache.tools.ant.UnknownElement.execute(UnknownElement.java:275)
>[loadproperties]        at
>sun.reflect.NativeMethodAccessorImpl.invoke0(Native
>Method)
>[loadproperties]        at
>sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
>[loadproperties]        at
>sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
>[loadproperties]        at
>java.lang.reflect.Method.invoke(Method.java:324)
>[loadproperties]        at
>org.apache.tools.ant.dispatch.DispatchUtils.execute(DispatchUtils.java:104)
>[loadproperties]        at
>org.apache.tools.ant.Task.perform(Task.java:365)
>[loadproperties]        at
>org.apache.tools.ant.Target.execute(Target.java:341)
>[loadproperties]        at
>org.apache.tools.ant.helper.ProjectHelper2.parse(ProjectHelper2.java:136)
>[loadproperties]        at
>org.apache.tools.ant.ProjectHelper.configureProject(ProjectHelper.java:90)
>[loadproperties]        at
>org.apache.tools.ant.Main.runBuild(Main.java:653)
>[loadproperties]        at
>org.apache.tools.ant.Main.startAnt(Main.java:187)
>[loadproperties]        at
>org.apache.tools.ant.launch.Launcher.run(Launcher.java:246)
>[loadproperties]        at
>org.apache.tools.ant.launch.Launcher.main(Launcher.java:67)
>[loadproperties] Caused by:
>org.apache.bcel.classfile.ClassFormatException:  is
>not a Java .class file
>[loadproperties]        at
>org.apache.bcel.classfile.ClassParser.readID(ClassParser.java:286)
>[loadproperties]        at
>org.apache.bcel.classfile.ClassParser.parse(ClassParser.java:155)
>[loadproperties]        at
>org.apache.tools.ant.filters.util.JavaClassHelper.getConstants(JavaClassHelper.java:47)
>[loadproperties]        ... 24 more
>
>BUILD FAILED
>/home/rambius/drafts/ant/constants.xml:4: Unable to
>load file: java.io.IOException
>
>As we can see there is a ClassFormataException,
>obviuosly it does not recognize my class file as a
>correct class file.
>
>Regards Ivan
>
>
>		
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>
>  
>


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