FTBFS with jtidy 7+svn20110807-1

Discovered whilst testing reverse build-dependencies of jtidy to support bug 837990:

common.test:
    [mkdir] Created dir: /build/jamespage-lucene2_2.9.4+ds1-2-amd64-qB5aEF/lucene2-2.9.4+ds1/build/contrib/ant/test
    [junit] WARNING: multiple versions of ant detected in path for junit
    [junit] jar:file:/usr/share/java/ant-1.8.2.jar!/org/apache/tools/ant/Project.class
    [junit] and jar:file:/usr/share/ant/lib/ant.jar!/org/apache/tools/ant/Project.class
    [junit] Testsuite: org.apache.lucene.ant.HtmlDocumentTest
    [junit] Tests run: 1, Failures: 0, Errors: 1, Time elapsed: 0.059 sec
    [junit]
    [junit] Testcase: testDoc(org.apache.lucene.ant.HtmlDocumentTest): Caused an ERROR
    [junit] null
    [junit] java.lang.ExceptionInInitializerError
    [junit] at org.w3c.tidy.Tidy.<init>(Tidy.java:135)
    [junit] at org.apache.lucene.ant.HtmlDocument.<init>(HtmlDocument.java:60)
    [junit] at org.apache.lucene.ant.HtmlDocumentTest.setUp(HtmlDocumentTest.java:34)
    [junit] Caused by: java.lang.RuntimeException: Failed to load jtidy.properties
    [junit] at org.w3c.tidy.Report.readReleaseDate(Report.java:94)
    [junit] at org.w3c.tidy.Report.<clinit>(Report.java:85)
    [junit] Caused by: java.lang.NullPointerException
    [junit] at java.util.Properties$LineReader.readLine(Properties.java:435)
    [junit] at java.util.Properties.load0(Properties.java:354)
    [junit] at java.util.Properties.load(Properties.java:342)
    [junit] at org.w3c.tidy.Report.readReleaseDate(Report.java:91)
    [junit]
    [junit]
    [junit] Test org.apache.lucene.ant.HtmlDocumentTest FAILED
    [junit] Testsuite: org.apache.lucene.ant.IndexTaskTest
    [junit] Tests run: 1, Failures: 0, Errors: 1, Time elapsed: 0.19 sec
    [junit]
    [junit] Testcase: testSearch(org.apache.lucene.ant.IndexTaskTest): Caused an ERROR
    [junit] null
    [junit] java.lang.ExceptionInInitializerError
    [junit] at org.w3c.tidy.Tidy.<init>(Tidy.java:135)
    [junit] at org.apache.lucene.ant.HtmlDocument.<init>(HtmlDocument.java:60)
    [junit] at org.apache.lucene.ant.HtmlDocument.Document(HtmlDocument.java:175)
    [junit] at org.apache.lucene.ant.FileExtensionDocumentHandler.getDocument(FileExtensionDocumentHandler.java:56)
    [junit] at org.apache.lucene.ant.IndexTask.indexDocs(IndexTask.java:340)
    [junit] at org.apache.lucene.ant.IndexTask.execute(IndexTask.java:236)
    [junit] at org.apache.lucene.ant.IndexTaskTest.setUp(IndexTaskTest.java:69)
    [junit] Caused by: java.lang.RuntimeException: Failed to load jtidy.properties
    [junit] at org.w3c.tidy.Report.readReleaseDate(Report.java:94)
    [junit] at org.w3c.tidy.Report.<clinit>(Report.java:85)
    [junit] Caused by: java.lang.NullPointerException
    [junit] at java.util.Properties$LineReader.readLine(Properties.java:435)
    [junit] at java.util.Properties.load0(Properties.java:354)
    [junit] at java.util.Properties.load(Properties.java:342)
    [junit] at org.w3c.tidy.Report.readReleaseDate(Report.java:91)
    [junit]
    [junit]
    [junit] Test org.apache.lucene.ant.IndexTaskTest FAILED
    [junit] Testsuite: org.apache.lucene.ant.TextDocumentTest
    [junit] Tests run: 1, Failures: 0, Errors: 0, Time elapsed: 0.039 sec
    [junit]
   [subant] Failure for target 'test' of: /build/jamespage-lucene2_2.9.4+ds1-2-amd64-qB5aEF/lucene2-2.9.4+ds1/contrib/ant/build.xml
   [subant] The following error occurred while executing this line:
   [subant] /build/jamespage-lucene2_2.9.4+ds1-2-amd64-qB5aEF/lucene2-2.9.4+ds1/contrib/contrib-build.xml:130: The following error occurred while executing this line:
   [subant] /build/jamespage-lucene2_2.9.4+ds1-2-amd64-qB5aEF/lucene2-2.9.4+ds1/common-build.xml:455: The following error occurred while executing this line:
   [subant] /build/jamespage-lucene2_2.9.4+ds1-2-amd64-qB5aEF/lucene2-2.9.4+ds1/common-build.xml:448: Tests failed!
     [echo] Building benchmark...