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Présentation : And now something completely different I've studied the Java sources quite a bit and I've learned a bunch. I've also come across some pretty funny, strange and unexpected comments. Here's my categorized compilation of the most interesting ones. Funny java.math.BigDecimal 001 Appease the serialization gods 002 private static final long serialVersionUID 6108874887143696463L java.util.ArrayDeque 001 002 Appease the serialization gods. 003 004 private static final long serialVersionUID 2340985798034038923L com.sun.corba.se.impl.naming.cosnaming.NamingContextImpl 001 if impl.Resolve n 0 ,bth null 002 Resistence is futile. Borg pickup line 003 throw new AlreadyBound java.awt.Dialog 001 add all blockers' blockers to blockers 002 for int i 0 i blockers.size i Animator Demo classes 001 002 Stop the insanity, um, applet. 003 004 public synchronized void stop 005 engine null 006 animation.stopPlaying 007 if userPause 008 userPause false 009 notify 010 011 javax.swing.text.rtf.RTFGenerator 001 String approximationForUnicode char ch 002 003 TODO Find reasonable approximations for all Unicode characters 004 in all RTF code pages... heh, heh... 005 return 006 Sorry, this typo is an inside joke and will only be funny to one person - you know who you are com.sun.corba.se.impl.oa.poa.POAImpl 001 002 POAImpl is the implementation of the Portable Object Adapter. It 003 contains an implementation of the POA interfaces specified in 004 COBRA 2.3.1 chapter 11 formal 99-10-07 . 005 ... 006 Resigned javax.swing.Timer 001 This of course implies you can get dropped events, but such is life. sun.plugin2.ipc.windows.WindowsIPCFactory 001 Might as well keep this around sun.media.sound.MixerSourceLine 001 ivg Well, it does hang in some cases. sun.security.x509.AVA 001 if in.markSupported 002 oh well 003 return true 004 else Informational sun.tools.java.ClassDefinition 001 Why are they called Miranda methods Well the sentence If the 002 class is not able to provide a method, then one will be provided 003 by the compiler is very similar to the sentence If you cannot 004 afford an attorney, one will be provided by the court, -- one 005 of the so-called Miranda rights in the United States. Frustrated javax.swing.JTabbedPane 001 REMIND aim this is really silly com.sun.xml.internal.bind.v2.util.DataSourceSource 001 catch IOException e 002 argh 003 throw new RuntimeException e 004 com.sun.org.apache.xml.internal.serialize.HTMLdtd 001 public static boolean isURI String tagName, String attrName 002 003 Stupid checks. 004 return attrName.equalsIgnoreCase href attrName.equalsIgnoreCase src 005 javax.swing.text.rtf.AbstractFilter 001 stupid signed bytes 002 if b 0 003 b 256 com.sun.org.apache.xalan.internal.xsltc.trax.TransformerHandlerImpl 001 catch TransformerException e 002 What the hell are we supposed to do with this 003 throw new IllegalArgumentException e.getMessage 004 sun.misc.FloatingDecimal 001 if diff 0L 002 damn, damn, damn. q is too big. sun.xml.internal.stream.writers.XMLDOMWriterImpl 001 public void writeEndDocument throws XMLStreamException 002 What do you want me to do eh com.sun.org.apache.xml.internal.res.XMLMessages 001 Do this to keep format from crying. Amused sun.awt.X11.XWM 001 002 Helper function for isEnlightenment . 003 Enlightenment uses STRING property for its comms window id. Gaaa 004 The property is ENLIGHTENMENT_COMMS, STRING 8 and the string format 005 is WINID pourcents8x . Gee, I haven't been using scanf for ages ... - 006 Agressive com.sun.org.apache.xalan.internal.xslt.Process 001 It is _much_ easier to debug under VJ if I can set a single breakpoint 002 before this blows itself out of the water... 003 I keep checking this in, it keeps vanishing. Grr 004 005 static void doExit String msg 006 007 throw new RuntimeException msg 008 com.sun.org.apache.xalan.internal.xsltc.dom.BitArray 001 002 This method returns the Nth bit that is set in the bit array. The 003 current position is cached in the following 4 variables and will 004 help speed up a sequence of next call in an index iterator. This 005 method is a mess, but it is fast and it works, so don't fuck with it. 006 Playful sun.awt.motif.MWindowPeer 001 XXX nasty WM, foul play. spank WM author. 002 public void handleDestroy DirectoryScanner Example classes 001 As it stands, we simply call task.execute in the current 002 thread - brave and fearless readers may want to attempt the 003 modification - Threatric java.util.logging.LogManager 001 if deathImminent 002 Aaargh... 003 The VM is shutting down and our exit hook has been called. 004 Avoid allocating global handlers. 005 return 006 Downright Crazy javax.swing.text.rtf.MockAttributeSet 001 This AttributeSet is made entirely out of tofu and Ritz Crackers 002 and yet has a remarkably attribute-set-like interface 003 class MockAttributeSet 004 implements AttributeSet, MutableAttributeSet This has been featured on the dailywtf in the past com.sun.org.apache.xalan.internal.xsltc.trax.TransformerFactoryImpl 001 002 As Gregor Samsa awoke one morning from uneasy dreams he found himself 003 transformed in his bed into a gigantic insect. He was lying on his hard, 004 as it were armour plated, back, and if he lifted his head a little he 005 could see his big, brown belly divided into stiff, arched segments, on 006 top of which the bed quilt could hardly keep in position and was about 007 to slide off completely. His numerous legs, which were pitifully thin 008 compared to the rest of his bulk, waved helplessly before his eyes. 009 What has happened to me 010 011 protected final static String DEFAULT_TRANSLET_NAME GregorSamsa Joyous com.sun.org.apache.xml.internal.serializer.utils.Messages 001 fmsg java.text.MessageFormat.format msg, args 002 if we get past the line above we have create the message ... hurray Sarcastic com.sun.org.apache.xpath.internal.axes.WalkerFactory 001 If we have an attribute or namespace axis that went up, then 002 it won't find the attribute in the inverse, since the select-to-match 003 axes are not invertable an element is a parent of an attribute, but 004 and attribute is not a child of an element . 005 If we don't do the magic below, then ancestor-or-self gets 006 inverted for match to self descendant-or-self parent node , 007 which obviously won't work. 008 So we will rewrite this as 009 self descendant-or-self attribute parent node 010 Child has to be rewritten a little differently 011 select parent 012 inverted match self child parent node 013 rewrite self attribute parent node 014 Axes that go down in the select, do not have to have special treatment 015 in the rewrite. The following inverted match will still not select 016 anything. 017 select child 018 inverted match self parent parent node 019 Lovely business, this. Disgusted com.sun.tools.internal.xjc.reader.xmlschema.SimpleTypeBuilder 001 TODO this is so dumb 002 m.put string , CBuiltinLeafInfo.STRING 003 m.put anyURI , CBuiltinLeafInfo.STRING 004 m.put boolean , CBuiltinLeafInfo.BOOLEAN com.sun.tools.example.debug.bdi.JDIEventSource 001 Gross foul hackery 002 private void dispatchEventSet final AbstractEventSet es javax.swing.tree.FixedHeightLayoutCache 001 YECK 002 return getRow 1 getTotalChildCount - 003 childCount - index com.sun.org.apache.xpath.internal.axes.LocPathIterator 001 Yech, shouldn't have to do this. -sb 002 if null m_prefixResolver 003 m_prefixResolver xctxt.getNamespaceContext 004 005 ... 006 clone.m_predCount m_predicateIndex 007 The line above used to be 008 clone.m_predCount predCount - 1 009 ...which looks like a dumb bug to me. -sb com.sun.media.sound.MixerClip 001 i don't think we should allow this in this release too many ways to screw up 002 003 if we have a sample voice, update it 004 if id 0 005 can throw IllegalArgumentException 006 007 nSetLoopPoints id, int start, int end 008 009 ... 001 002 ... 003 if Printer.err Printer.err Could not re-open clip in MixerClip.java.setLoopPoints 004 we are screwed... re-open failed 005 sorry.... 006 implClose 007 ... 008 com.sun.deploy.util.VersionID 001 FIXME this is a horrendously inefficient representation 002 should use an array of ints or Integers rather than re-parsing 003 them every time com.sun.org.apache.xml.internal.dtm.ref.IncrementalSAXSource_Filter 001 Horrendous kluge to run filter to completion. See below. 002 if fNoMoreEvents 003 return Notepad Demo Classes 001 002 To shutdown when run as an application. This is a 003 fairly lame implementation. A more self-respecting 004 implementation would at least check to see if a save 005 was needed. 006 007 protected static final class AppCloser extends WindowAdapter 008 public void windowClosing WindowEvent e 009 System.exit 0 010 011 Other sun.jkernel.DigestOutputStream 001 catch NoSuchAlgorithmException e 002 Impossible to get here, but stranger things have happened... 003 throw new RuntimeException DigestOutputStream unknown algorithm 004 005 superstition from a test failure this.out out com.sun.org.apache.xalan.internal.xsltc.dom.CachedDocument 001 Brutal handling of all exceptions 002 catch Exception e 003 return System.currentTimeMillis 004 com.sun.java.util.jar.pack.PackageWriter 001 Crash and burn with a complaint if there are funny 002 bytecodes in this class file. 003 String complaint code.getMethod 004 contains an unrecognized bytecode i 005 please use the pass-file option on this class. 006 Utils.log.warning complaint 007 throw new IOException complaint java.util.jar.Pack200 001 002 ... 003 Examples 004 Map p packer.properties 005 p.put PASS_FILE_PFX 0, mutants Rogue.class 006 p.put PASS_FILE_PFX 1, mutants Wolverine.class 007 p.put PASS_FILE_PFX 2, mutants Storm.class 008 Pass all files in an entire directory hierarchy 009 p.put PASS_FILE_PFX 3, police 010 com.sun.tools.jdi.ObjectReferenceImpl 001 The above code is left over from previous versions. 002 We haven't had time to divine the intent. jjh, 7 31 2003 003 com.sun.media.sound.RealTimeSequencer 001 catch MidiUnavailableException mue 002 uhum, strange situation. Need to cast to InvalidMidiDataException 003 throw new InvalidMidiDataException mue.getMessage 004 com.sun.org.apache.xml.internal.dtm.ref.dom2dtm.DOM2DTM 001 If it's an EntityReference node, we're probably scrod. For now 002 I'm just hoping nobody is ever quite that foolish... pourcentsREVIEWpourcents com.sun.tools.doclets.formats.html.AbstractTreeWriter 001 002 Generate each level of the class tree. For each sub-class or 003 sub-interface indents the next level information. 004 Recurses itself to generate subclasses info. 005 To iterate is human, to recurse is divine - L. Peter Deutsch. 006 007 param parent the superclass or superinterface of the list. 008 param list list of the sub-classes at this level. 009 param isEnum true if we are generating a tree for enums. 010 sun.awt.shell.Win32ShellFolder2 001 Ouch, we have no hard drives. Return something valid anyway. 002 return new File C com.sun.org.apache.bcel.internal.ExceptionConstants 001 The mother of all exceptions 002 003 public static final Class THROWABLE Throwable.class com.sun.xml.internal.messaging.saaj.util.ByteOutputStream 001 002 Evil buffer reallocation method. 003 Don't use it unless you absolutely have to. 004 005 deprecated 006 because this is evil 007 008 public byte toByteArray 009 byte newbuf new byte count 010 System.arraycopy buf, 0, newbuf, 0, count 011 return newbuf 012 com.sun.org.apache.xpath.internal.compiler.Compiler 001 int what getWhatToShow startOpPos 002 bit-o-hackery, but this code is due for the morgue anyway... 003 if 0x00000500 what 004 addMagicSelf false sun.jvm.hotspot.runtime.sparc.SPARCFrame 001 Also not sure exactly how alignment works...maybe should read these offsets from the target VM 002 When you have a hammer, everything looks like a nail 003 long offset VM.getVM .alignUp 4, VM.getVM .getAddressSize uc_flags sun.security.tools.KeyTool 001 do not drown user with the help lines. 002 if debug 003 throw new RuntimeException NO BIG ERROR, SORRY 004 else 005 System.exit 1 006






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