[Bug 64912] New: [javac] Task regression between 1.10.6 and 1.10.8

[bugzilla]

https://bz.apache.org/bugzilla/show_bug.cgi?id=64912

            Bug ID: 64912
           Summary: [javac] Task regression between 1.10.6 and 1.10.8
           Product: Ant
           Version: 1.10.8
          Hardware: PC
                OS: Linux
            Status: NEW
          Severity: normal
          Priority: P2
         Component: Core tasks
          Assignee: notifications@ant.apache.org
          Reporter: rothw...@amazon.com
  Target Milestone: ---

Created attachment 37552
  --> https://bz.apache.org/bugzilla/attachment.cgi?id=37552&action=edit
patch as described in issue description

## Problem

Triggered regression:
https://github.com/apache/ant/commit/15fcc941e01cb127bd2b137d88ed702dea6afa46#diff-91c4932c8be4bf0200b9885eac1d0f1052b4561e2c8f99fffcf874272dc56769R75

If an argument contains '#', it must be quoted in the JVM arg file as well.

Before, the classpath did not get included in arg file, so quoting was not
necessary.

Now, the classpath goes to the arg file, so it must be quoted.


## Proposed solution:

https://github.com/apache/ant/blob/master/src/main/org/apache/tools/ant/taskdefs/compilers/DefaultCompilerAdapter.java#L552

1. `if (quoteFiles && args[i].contains(" ")) {`
2. `if (quoteFiles && Pattern.compile("[ #]").matcher(args[i]).find()) {`

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