Bug 202276 – dev-java/ant-core-1.7.0-r1: warnings about bad path elements

• Status: CONFIRMED
• Product: Gentoo Linux

[Description Martin von Gagern 2007-12-14 17:28:45 UTC]

When I compile a project with ant passing -Xlint:all to the compiler, even with ANT_TASKS=none I get the following error messages:

    [javac] warning: [path] bad path element
            "/usr/share/ant-core/lib/xml-apis.jar": no such file or directory
    [javac] warning: [path] bad path element
            "/usr/share/ant-core/lib/xercesImpl.jar": no such file or directory
    [javac] warning: [path] bad path element
            "/usr/share/ant-core/lib/xalan.jar": no such file or directory

I guess this is because /usr/share/ant-core/lib/ant-bootstrap.jar contains the following line in its manifest:

Class-Path: ant.jar xml-apis.jar xercesImpl.jar xalan.jar

If I set ANT_TASKS=all, I get even more such warnings. /usr/share/xalan/lib/xalan.jar also references xercesImpl.jar and xml-apis.jar, while /usr/share/javacup/lib/javacup.jar references java-cup-11a-runtime.jar instead of javacup-runtime.jar.

I don't know if there is any easy way to avoid these problems, if maybe simply modifying that manifest is an option. I do know, however, that enabling warnings is a good idea, and seeing warnings for every build is annoying and tends to get you used to ignoring warnings, which I consider a bad thing.

[Comment 1 Martin von Gagern 2007-12-14 17:30:18 UTC]

Created attachment 138479 [details]
Demo build file

Simple test file demonstrating the issue. Run in an otherwise empty dir, with whatever settings for GENTOO_VM or ANT_TASKS you like.

[Comment 2 Petteri Räty (RETIRED) 2007-12-15 17:18:42 UTC]

To solve this I think we need to automatically remove or rewrite the Class-Path entries in our eclasses so might take a while before anything gets implemented.

[Comment 3 Jonas Stein 2018-08-08 12:52:52 UTC]

We not have dev-java/ant-core-1.7 in the tree anymore. Is this still in dev-java/ant-core-1.9.2?

[Comment 4 Timo Gurr 2022-10-24 07:18:09 UTC]

This still appears to be in issue with ant-core-1.10.9-r5, running a tomcat 9 produces the following warning in catalina log:

24-Oct-2022 09:01:39.706 WARNING [main] org.apache.tomcat.util.scan.StandardJarScanner.processURLs Failed to scan [file:/usr/share/ant-core/lib/xalan.jar] from classloader hierarchy
        java.io.IOException: java.lang.reflect.InvocationTargetException

The MANIFEST.MF of ant-bootstrap.jar still contains xalan.jar

Manifest-Version: 1.0
Ant-Version: Apache Ant 1.10.9
Created-By: 11.0.16.1+1 (Eclipse Adoptium)
Main-Class: org.apache.tools.ant.Main
Class-Path: ant.jar xalan.jar