build01473 extensive unit test failures

gistfile1.txt

git checkout build01473
ant clean && ant -Dtest.skip=false -Dtest.extensive=true -Dtest.class=freenet.client.async.SplitFileInserterStorageTest

tried 4 times on 1472, all succeeded.
tried 5 times on 1473, failed every time with:

    [junit] Testcase: testRoundTripDataBlocksOnly took 103.758 sec
    [junit]     Caused an ERROR
    [junit] Java heap space
    [junit] java.lang.OutOfMemoryError: Java heap space
    [junit]     at freenet.support.io.ByteArrayRandomAccessBufferFactory.makeRAF(ByteArrayRandomAccessBufferFactory.java:15)
    [junit]     at freenet.client.async.SplitFileFetcherStorage.<init>(SplitFileFetcherStorage.java:544)
    [junit]     at freenet.client.async.SplitFileInserterStorageTest.testRoundTripCrossSegmentDataBlocks(SplitFileInserterStorageTest.java:1092)
    [junit]     at freenet.client.async.SplitFileInserterStorageTest.testRoundTripDataBlocksOnly(SplitFileInserterStorageTest.java:691)
    [junit]     at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    [junit]     at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
    [junit]     at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    [junit]     at java.lang.reflect.Method.invoke(Method.java:606)
    [junit]     at junit.framework.TestCase.runTest(TestCase.java:176)
    [junit]     at junit.framework.TestCase.runBare(TestCase.java:141)
    [junit]     at junit.framework.TestResult$1.protect(TestResult.java:122)
    [junit]     at junit.framework.TestResult.runProtected(TestResult.java:142)
    [junit]     at junit.framework.TestResult.run(TestResult.java:125)
    [junit]     at junit.framework.TestCase.run(TestCase.java:129)
    [junit]     at junit.framework.TestSuite.runTest(TestSuite.java:255)
    [junit]     at junit.framework.TestSuite.run(TestSuite.java:250)
    [junit]     at org.apache.tools.ant.taskdefs.optional.junit.JUnitTestRunner.run(JUnitTestRunner.java:532)
    [junit]     at org.apache.tools.ant.taskdefs.optional.junit.JUnitTestRunner.launch(JUnitTestRunner.java:1165)
    [junit]     at org.apache.tools.ant.taskdefs.optional.junit.JUnitTestRunner.main(JUnitTestRunner.java:1016)
    [junit] 
    [junit] Testcase: testCancel took 0.083 sec
    [junit] Testcase: testSmallSplitfileWithLastBlock took 0.036 sec
    [junit] Testcase: testRoundTripCrossSegment took 76.46 sec
    [junit]     Caused an ERROR
    [junit] Java heap space
    [junit] java.lang.OutOfMemoryError: Java heap space
    [junit]     at freenet.support.io.ByteArrayRandomAccessBufferFactory.makeRAF(ByteArrayRandomAccessBufferFactory.java:15)
    [junit]     at freenet.client.async.SplitFileFetcherStorage.<init>(SplitFileFetcherStorage.java:544)
    [junit]     at freenet.client.async.SplitFileInserterStorageTest.testRoundTripCrossSegmentRandom(SplitFileInserterStorageTest.java:1012)
    [junit]     at freenet.client.async.SplitFileInserterStorageTest.testRoundTripCrossSegment(SplitFileInserterStorageTest.java:684)
    [junit]     at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    [junit]     at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
    [junit]     at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    [junit]     at java.lang.reflect.Method.invoke(Method.java:606)
    [junit]     at junit.framework.TestCase.runTest(TestCase.java:176)
    [junit]     at junit.framework.TestCase.runBare(TestCase.java:141)
    [junit]     at junit.framework.TestResult$1.protect(TestResult.java:122)
    [junit]     at junit.framework.TestResult.runProtected(TestResult.java:142)
    [junit]     at junit.framework.TestResult.run(TestResult.java:125)
    [junit]     at junit.framework.TestCase.run(TestCase.java:129)
    [junit]     at junit.framework.TestSuite.runTest(TestSuite.java:255)
    [junit]     at junit.framework.TestSuite.run(TestSuite.java:250)
    [junit]     at org.apache.tools.ant.taskdefs.optional.junit.JUnitTestRunner.run(JUnitTestRunner.java:532)
    [junit]     at org.apache.tools.ant.taskdefs.optional.junit.JUnitTestRunner.launch(JUnitTestRunner.java:1165)
    [junit]     at org.apache.tools.ant.taskdefs.optional.junit.JUnitTestRunner.main(JUnitTestRunner.java:1016)
    [junit] 
    [junit] Testcase: testPersistentSmallSplitfileNoLastBlockChooseAfterResume took 0.601 sec

BUILD FAILED
fred/build-clean.xml:338: Test freenet.client.async.SplitFileInserterStorageTest failed