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Posted to dev@maven.apache.org by ji...@codehaus.org on 2004/03/03 16:41:23 UTC

[jira] Created: (MPJAVA-16) Incorrect defaults cause problems with javac changes

Message:

  A new issue has been created in JIRA.

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View the issue:
  http://jira.codehaus.org/secure/ViewIssue.jspa?key=MPJAVA-16

Here is an overview of the issue:
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        Key: MPJAVA-16
    Summary: Incorrect defaults cause problems with javac changes
       Type: Bug

     Status: Open
   Priority: Major

 Original Estimate: Unknown
 Time Spent: Unknown
  Remaining: Unknown

    Project: maven-java-plugin

   Assignee: Jason van Zyl
   Reporter: Berin Loritsch

    Created: Wed, 3 Mar 2004 10:39 AM
    Updated: Wed, 3 Mar 2004 10:39 AM
Environment: JDK 1.5

Description:
The problem is that the defaults on the "javac" compiler are different, and the fact that we set the "-target" option without specifying the "-source" option means that all compilation will fail with the following message:

javac: source release 1.4 requires target release 1.4

The default "-source" option is "1.4" for JDK 1.5, which means you need a
"-target" of "1.4".  Actually, unless you intend to have Java 1.1 compatible binaries, the "-target" option should never be set.

For each "-source" option, the compiler will default to the lowest option available for it.  For example:

* "-source 1.5" will default to "-target 1.5"
* "-source 1.4" will default to "-target 1.4"
* "-source 1.3" will default to "-target 1.2"

The only reason to ever specify "-target" at all is to get a "1.1" compatible class file.

Please remove the "-target", or have it always default to "-source".


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