Merge branch 'master' into armvfp

classpath/avian/Atomic.java

@@ -0,0 +1,10 @@
+package avian;
+
+import java.lang.reflect.Field;
+
+public class Atomic {
+  public static native long getOffset(Field field);
+
+  public static native boolean compareAndSwapObject
+    (Object o, long offset, Object old, Object new_);
+}

classpath/java-lang.cpp

@@ -51,7 +51,9 @@
 #  endif
 #  include "unistd.h"
 #  include "limits.h"
+#  include "signal.h"
 #  include "sys/time.h"
+#  include "sys/types.h"
 #  include "sys/sysctl.h"
 #  include "sys/utsname.h"
 #  include "sys/wait.h"
@@ -281,6 +283,11 @@ Java_java_lang_Runtime_waitFor(JNIEnv* e, jclass, jlong pid, jlong tid)
   return exitCode;
 }
 
+extern "C" JNIEXPORT void JNICALL
+Java_java_lang_Runtime_kill(JNIEnv*, jclass, jlong pid) {
+  TerminateProcess(reinterpret_cast<HANDLE>(pid), 1);
+}
+
 Locale getLocale() {
   const char* lang = "";
   const char* reg = "";
@@ -468,6 +475,11 @@ Java_java_lang_Runtime_waitFor(JNIEnv*, jclass, jlong pid, jlong)
   return exitCode;
 }
 
+extern "C" JNIEXPORT void JNICALL
+Java_java_lang_Runtime_kill(JNIEnv*, jclass, jlong pid) {
+  kill((pid_t)pid, SIGTERM);
+}
+
 Locale getLocale() {
   Locale fallback;
 

classpath/java/io/BufferedReader.java

@@ -46,8 +46,7 @@ public class BufferedReader extends Reader {
           sb.append(buffer, position, i - position);
           position = i + 1;
           if(i+1 < limit && buffer[i+1] == '\n') {
-            position = i + 1;
-            return sb.toString();
+            position = i + 2;
           }
           return sb.toString();
         } else if (buffer[i] == '\n') {

classpath/java/io/File.java

@@ -61,6 +61,10 @@ public class File implements Serializable {
     return isFile(path);
   }
   
+  public boolean isAbsolute() {
+    return path.equals(toAbsolutePath(path));
+  }
+  
   private static native boolean canRead(String path);
   
   public boolean canRead() {

classpath/java/io/InputStream.java

@@ -56,7 +56,7 @@ public abstract class InputStream {
   }
 
   public void reset() throws IOException {
-    // ignore
+    throw new IOException("mark/reset not supported");
   }
 
   public boolean markSupported() {

classpath/java/io/RandomAccessFile.java

@@ -12,16 +12,21 @@ package java.io;
 
 public class RandomAccessFile {
   private long peer;
-  private long length;
+  private File file;
   private long position = 0;
-  
+  private long length;
+
   public RandomAccessFile(String name, String mode)
     throws FileNotFoundException
   {
     if (! mode.equals("r")) throw new IllegalArgumentException();
+    file = new File(name);
+    open();
+  }
 
+  private void open() throws FileNotFoundException {
     long[] result = new long[2];
-    open(name, result);
+    open(file.getPath(), result);
     peer = result[0];
     length = result[1];
   }
@@ -29,7 +34,15 @@ public class RandomAccessFile {
   private static native void open(String name, long[] result)
     throws FileNotFoundException;
 
+  private void refresh() throws IOException {
+    if (file.length() != length) {
+      close();
+      open();
+    }
+  }
+
   public long length() throws IOException {
+    refresh();
     return length;
   }
 
@@ -38,7 +51,7 @@ public class RandomAccessFile {
   }
 
   public void seek(long position) throws IOException {
-    if (position < 0 || position > length) throw new IOException();
+    if (position < 0 || position > length()) throw new IOException();
 
     this.position = position;
   }
@@ -50,12 +63,16 @@ public class RandomAccessFile {
 
     if (length == 0) return;
 
-    if (position + length > this.length) throw new EOFException();
+    if (position + length > this.length) {
+      if (position + length > length()) throw new EOFException();
+    }
 
     if (offset < 0 || offset + length > buffer.length)
       throw new ArrayIndexOutOfBoundsException();
 
     copy(peer, position, buffer, offset, length);
+
+    position += length;
   }
 
   private static native void copy(long peer, long position, byte[] buffer,

classpath/java/lang/Enum.java

@@ -14,7 +14,7 @@ import java.lang.reflect.Method;
 
 public abstract class Enum<E extends Enum<E>> implements Comparable<E> {
   private final String name;
-  private final int ordinal;
+  protected final int ordinal;
 
   public Enum(String name, int ordinal) {
     this.name = name;

classpath/java/lang/Float.java

@@ -12,8 +12,10 @@ package java.lang;
 
 public final class Float extends Number {
   public static final Class TYPE = Class.forCanonicalName("F");
-
-  private final float value;
+  private static final int EXP_BIT_MASK = 0x7F800000;
+  private static final int SIGNIF_BIT_MASK = 0x007FFFFF;
+  
+  private final float value;  
 
   public Float(String value) {
     this.value = parseFloat(value);
@@ -88,6 +90,17 @@ public final class Float extends Number {
       throw new NumberFormatException(s);
     }
   }
+  
+  public static int floatToIntBits(float value) {
+    int result = floatToRawIntBits(value);
+    
+    // Check for NaN based on values of bit fields, maximum
+    // exponent and nonzero significand.
+    if (((result & EXP_BIT_MASK) == EXP_BIT_MASK) && (result & SIGNIF_BIT_MASK) != 0) {
+      result = 0x7fc00000;
+    }
+    return result;
+  }
 
   public static native int floatToRawIntBits(float value);
 

classpath/java/lang/Runtime.java

@@ -122,6 +122,8 @@ public class Runtime {
 
   private static native void load(String name, boolean mapName);
 
+  private static native void kill(long pid);
+
   public native void gc();
 
   public native void exit(int code);
@@ -147,7 +149,9 @@ public class Runtime {
     }
 
     public void destroy() {
-      throw new RuntimeException("not implemented");
+			if (pid != 0) {
+      	kill(pid);
+			}
     }
 
     public InputStream getInputStream() {

classpath/java/net/URL.java

@@ -19,6 +19,8 @@ public final class URL {
   private String host;
   private int port;
   private String file;
+  private String path;
+  private String query;
   private String ref;
 
   public URL(String s) throws MalformedURLException {
@@ -55,6 +57,14 @@ public final class URL {
   public String getRef() {
     return ref;
   }
+  
+  public String getPath() {
+    return path;
+  }
+  
+  public String getQuery() {
+    return query;
+  }
 
   public URLConnection openConnection() throws IOException {
     return handler.openConnection(this);
@@ -90,5 +100,13 @@ public final class URL {
     this.port = port;
     this.file = file;
     this.ref = ref;
+    
+    int q = file.lastIndexOf('?');
+    if (q != -1) {
+      this.query = file.substring(q + 1);
+      this.path = file.substring(0, q);
+    } else {
+      this.path = file;
+    }
   }
 }

classpath/java/nio/Buffer.java

@@ -15,45 +15,50 @@ public abstract class Buffer {
   protected int position;
   protected int limit;
 
-  public int limit() {
+  public final int limit() {
     return limit;
   }
 
-  public int remaining() {
+  public final int remaining() {
     return limit-position;
   }
 
-  public int position() {
+  public final int position() {
     return position;
   }
 
-  public int capacity() {
+  public final int capacity() {
     return capacity;
   }
 
-  public Buffer limit(int newLimit) {
+  public final Buffer limit(int newLimit) {
     limit = newLimit;
     return this;
   }
 
-  public Buffer position(int newPosition) {
+  public final Buffer position(int newPosition) {
     position = newPosition;
     return this;
   }
 
-  public boolean hasRemaining() {
+  public final boolean hasRemaining() {
     return remaining() > 0;
   }
 
-  public Buffer clear() {
+  public final Buffer clear() {
     position = 0;
     limit = capacity;
     return this;
   }
 
-  public Buffer flip() {
+  public final Buffer flip() {
     limit = position;
     position = 0;
     return this;
   }
+
+  public final Buffer rewind() {
+    position = 0;
+    return this;
+  }
 }

classpath/java/nio/ByteBuffer.java

@@ -36,6 +36,13 @@ public class ByteBuffer extends Buffer implements Comparable<ByteBuffer> {
     position = 0;
   }
 
+  public ByteBuffer asReadOnlyBuffer() {
+    ByteBuffer b = new ByteBuffer(array, arrayOffset, capacity, true);
+    b.position(position());
+    b.limit(limit());
+    return b;
+  }
+
   public int compareTo(ByteBuffer o) {
     int end = (remaining() < o.remaining() ? remaining() : o.remaining());
 
@@ -159,6 +166,13 @@ public class ByteBuffer extends Buffer implements Comparable<ByteBuffer> {
       | ((array[p + 3] & 0xFF));
   }
 
+  public short getShort(int position) {
+    checkGet(position, 2);
+
+    int p = arrayOffset + position;
+    return (short) (((array[p] & 0xFF) << 8) | ((array[p + 1] & 0xFF)));
+  }
+
   public int getInt() {
     checkGet(4);
     int i = get() << 24;

classpath/java/util/AbstractCollection.java

@@ -72,4 +72,7 @@ public abstract class AbstractCollection<T> implements Collection<T> {
 
   public abstract Iterator<T> iterator();
 
+  public String toString() {
+    return Collections.toString(this);
+  }
 }

classpath/java/util/AbstractList.java

@@ -1,4 +1,4 @@
-/* Copyright (c) 2009, Avian Contributors
+/* Copyright (c) 2009-2011, Avian Contributors
 
    Permission to use, copy, modify, and/or distribute this software
    for any purpose with or without fee is hereby granted, provided
@@ -22,4 +22,20 @@ public abstract class AbstractList<T> extends AbstractCollection<T>
   public ListIterator<T> listIterator() {
     return new Collections.ArrayListIterator(this);
   }
+
+  public int indexOf(Object o) {
+    int i = 0;
+    for (T v: this) {
+      if (o == null) {
+        if (v == null) {
+          return i;
+        }
+      } else if (o.equals(v)) {
+        return i;
+      }
+
+      ++ i;
+    }
+    return -1;
+  }
 }

classpath/java/util/TreeSet.java

@@ -41,6 +41,18 @@ public class TreeSet<T> extends AbstractSet<T> implements Collection<T> {
       add(item);
     }
   }
+
+  public T first() {
+    if (isEmpty()) throw new NoSuchElementException();
+
+    return set.first().value().value;
+  }
+
+  public T last() {
+    if (isEmpty()) throw new NoSuchElementException();
+
+    return set.last().value().value;
+  }
   
   public Iterator<T> iterator() {
     return new MyIterator<T>(set.first());

classpath/java/util/UUID.java

@@ -0,0 +1,45 @@
+package java.util;
+
+public class UUID {
+  private final byte[] data;
+
+  private UUID(byte[] data) {
+    this.data = data;
+  }
+
+  public static UUID randomUUID() {
+    byte[] array = new byte[16];
+
+    new Random().nextBytes(array);
+
+    array[6] &= 0x0f;
+    array[6] |= 0x40;
+    array[8] &= 0x3f;
+    array[8] |= 0x80;
+
+    return new UUID(array);
+  }
+
+  public String toString() {
+    StringBuilder sb = new StringBuilder();
+    toHex(sb, data, 0, 4); sb.append('-');
+    toHex(sb, data, 4, 2); sb.append('-');
+    toHex(sb, data, 6, 2); sb.append('-');
+    toHex(sb, data, 8, 2); sb.append('-');
+    toHex(sb, data, 10, 6);
+    return sb.toString();
+  }
+
+  private static char toHex(int i) {
+    return (char) (i < 10 ? i + '0' : (i - 10) + 'A');
+  }
+
+  private static void toHex(StringBuilder sb, byte[] array, int offset,
+                            int length)
+  {
+    for (int i = offset; i < offset + length; ++i) {
+      sb.append(toHex((array[i] >> 4) & 0xf));
+      sb.append(toHex((array[i]     ) & 0xf));
+    }
+  }
+}

classpath/java/util/concurrent/ConcurrentLinkedQueue.java

@@ -0,0 +1,93 @@
+package java.util.concurrent;
+
+import avian.Atomic;
+
+public class ConcurrentLinkedQueue<T> {
+  private static final long QueueHead;
+  private static final long QueueTail;
+  private static final long NodeNext;
+
+  static {
+    try {
+      QueueHead = Atomic.getOffset
+        (ConcurrentLinkedQueue.class.getField("head"));
+
+      QueueTail = Atomic.getOffset
+        (ConcurrentLinkedQueue.class.getField("tail"));
+
+      NodeNext = Atomic.getOffset
+        (Node.class.getField("next"));
+    } catch (NoSuchFieldException e) {
+      throw new RuntimeException(e);
+    }
+  }
+
+  private volatile Node<T> head = new Node(null, null);
+  private volatile Node<T> tail = head;
+
+  public void clear() {
+    // todo: can we safely make this O(1)?
+    while (poll() != null) { }
+  }
+
+  public boolean add(T value) {
+    Node<T> n = new Node(value, null);
+    while (true) {
+      Node<T> t = tail;
+      Node<T> next = tail.next;
+      if (t == tail) {
+        if (next != null) {
+          Atomic.compareAndSwapObject(this, QueueTail, t, next);
+        } else if (Atomic.compareAndSwapObject(tail, NodeNext, null, n)) {
+          Atomic.compareAndSwapObject(this, QueueTail, t, n);
+          break;
+        }
+      }
+    }
+
+    return true;
+  }
+
+  public T peek() {
+    return poll(false);
+  }
+
+  public T poll() {
+    return poll(true);
+  }
+
+  public T poll(boolean remove) {
+    while (true) {
+      Node<T> h = head;
+      Node<T> t = tail;
+      Node<T> next = head.next;
+
+      if (h == head) {
+        if (h == t) {
+          if (next != null) {
+            Atomic.compareAndSwapObject(this, QueueTail, t, next);
+          } else {
+            return null;
+          }
+        } else {
+          T value = next.value;
+          if ((! remove)
+              || Atomic.compareAndSwapObject(this, QueueHead, h, next))
+          {
+            return value;
+          }
+        }
+      }
+    }
+  }
+
+  private static class Node<T> {
+    public volatile T value;
+    public volatile Node<T> next;
+
+    public Node(T value, Node<T> next) {
+      this.value = value;
+      this.next = next;
+    }
+  }
+}

makefile

@@ -54,7 +54,7 @@ test = test
 
 classpath = avian
 
-test-executable = $(executable)
+test-executable = $(shell pwd)/$(executable)
 boot-classpath = $(classpath-build)
 embed-prefix = /avian-embedded
 
@@ -110,7 +110,7 @@ ifneq ($(openjdk),)
 		boot-javahome-object = $(build)/boot-javahome.o
 	else
 	  options := $(options)-openjdk
-		test-executable = $(executable-dynamic)
+		test-executable = $(shell pwd)/$(executable-dynamic)
 		library-path = \
 			$(library-path-variable)=$(build):$(openjdk)/jre/lib/$(openjdk-arch)
 		javahome = "$$($(native-path) "$(openjdk)/jre")"
@@ -246,7 +246,8 @@ ifeq ($(arch),arm)
 	ifeq ($(build-platform),darwin)
 		ios = true
 	else
-		cflags += -marm -Wno-psabi
+		no-psabi = -Wno-psabi
+		cflags += -marm $(no-psabi)
 	endif
 
 	ifneq ($(arch),$(build-arch))
@@ -319,7 +320,7 @@ ifeq ($(platform),darwin)
 			converter-cflags += -DOPPOSITE_ENDIAN
 		endif
 		flags = -arch armv6 -isysroot \
-			/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS4.3.sdk/
+			/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS5.0.sdk/
 		openjdk-extra-cflags += $(flags)
 		cflags += $(flags)
 		asmflags += $(flags)
@@ -372,7 +373,8 @@ ifeq ($(platform),windows)
 	exe-suffix = .exe
 
 	lflags = -L$(lib) $(common-lflags) -lws2_32 -mwindows -mconsole
-	cflags = -I$(inc) $(common-cflags) -DWINVER=0x0500
+	cflags = -I$(inc) $(common-cflags) -DWINVER=0x0500 -DTARGET_PLATFORM_WINDOWS
+
 
 	ifeq (,$(filter mingw32 cygwin,$(build-platform)))
 		openjdk-extra-cflags += -I$(src)/openjdk/caseSensitive
@@ -446,6 +448,7 @@ ifeq ($(use-lto),true)
 	ifeq ($(shell expr 4 \< $(gcc-major) \
 			\| \( 4 \<= $(gcc-major) \& 6 \<= $(gcc-minor) \)),1)
 		optimization-cflags += -flto
+		no-lto = -fno-lto
 		lflags += $(optimization-cflags)
 	endif
 endif
@@ -584,12 +587,12 @@ endif
 cflags += $(extra-cflags)
 lflags += $(extra-lflags)
 
+openjdk-cflags += $(extra-cflags)
+
 driver-source = $(src)/main.cpp
 driver-object = $(build)/main.o
 driver-dynamic-objects = \
-	$(build)/main-dynamic.o \
-	$(build)/$(system).o \
-	$(build)/finder.o
+	$(build)/main-dynamic.o
 
 boot-source = $(src)/boot.cpp
 boot-object = $(build)/boot.o
@@ -957,6 +960,8 @@ else
 endif
 	$(strip) $(strip-all) $(@)
 
+# todo: the $(no-lto) flag below is due to odd undefined reference errors on
+# Ubuntu 11.10 which may be fixable without disabling LTO.
 $(executable-dynamic): $(driver-dynamic-objects) $(dynamic-library)
 	@echo "linking $(@)"
 ifdef msvc
@@ -965,7 +970,7 @@ ifdef msvc
 		-MANIFESTFILE:$(@).manifest
 	$(mt) -manifest $(@).manifest -outputresource:"$(@);1"
 else
-	$(ld) $(driver-dynamic-objects) -L$(build) -ljvm $(lflags) -o $(@)
+	$(ld) $(driver-dynamic-objects) -L$(build) -ljvm $(lflags) $(no-lto) -o $(@)
 endif
 	$(strip) $(strip-all) $(@)
 

src/arm.cpp

@@ -2626,12 +2626,13 @@ class MyAssembler: public Assembler {
           poolSize += TargetBytesPerWord;
         }
 
-        if (needJump(b)) {
+        bool jump = needJump(b);
+        if (jump) {
           write4
             (dst + dstOffset, ::b((poolSize + TargetBytesPerWord - 8) >> 2));
         }
 
-        dstOffset += poolSize + TargetBytesPerWord;
+        dstOffset += poolSize + (jump ? TargetBytesPerWord : 0);
       }
 
       unsigned size = b->size - blockOffset;

src/arm.h

@@ -146,18 +146,24 @@ dynamicCall(void* function, uintptr_t* arguments, uint8_t* argumentTypes,
     switch (argumentTypes[ati]) {
     case DOUBLE_TYPE:
     case INT64_TYPE: {
-      if (gprIndex + Alignment <= GprCount) { // pass argument on registers
-        if (gprIndex % Alignment) {           // 8-byte alignment
-          memset(gprTable + gprIndex, 0, 4);  // probably not necessary, but for good luck
-          ++gprIndex;
+      if (gprIndex + Alignment <= GprCount) { // pass argument in register(s)
+        if (Alignment == 1
+            and BytesPerWord < 8
+            and gprIndex + Alignment == GprCount)
+        {
+          gprTable[gprIndex++] = arguments[ai];
+          stack[stackIndex++] = arguments[ai + 1];
+        } else {
+          if (gprIndex % Alignment) {
+            ++gprIndex;
+          }
+          
+          memcpy(gprTable + gprIndex, arguments + ai, 8);
+          gprIndex += 8 / BytesPerWord;
         }
-
-        memcpy(gprTable + gprIndex, arguments + ai, 8);
-        gprIndex += 8 / BytesPerWord;
       } else {                                // pass argument on stack
         gprIndex = GprCount;
-        if (stackIndex % Alignment) {         // 8-byte alignment
-          memset(stack + stackIndex, 0, 4);   // probably not necessary, but for good luck
+        if (stackIndex % Alignment) {
           ++stackIndex;
         }
 

src/bootimage.cpp

@@ -211,10 +211,12 @@ allFields(Thread* t, object typeMaps, object c, unsigned* count, object* array)
     includeMembers = false;
     *count += reinterpret_cast<TypeMap*>(&byteArrayBody(t, *array, 0))
       ->fixedFieldCount;
-  } else if (classSuper(t, c)) {
+  } else {
     includeMembers = true;
-    fields = getNonStaticFields
-      (t, typeMaps, classSuper(t, c), fields, count, array);
+    if (classSuper(t, c)) {
+      fields = getNonStaticFields
+        (t, typeMaps, classSuper(t, c), fields, count, array);
+    }
   }
 
   if (classFieldTable(t, c)) {
@@ -1314,9 +1316,9 @@ writeBootImage2(Thread* t, FILE* bootimageOutput, FILE* codeOutput,
       unsigned buildOffset = BytesPerWord;
       unsigned targetOffset = TargetBytesPerWord;
       bool sawArray = false;
-      Type type;
-      unsigned buildSize;
-      unsigned targetSize;
+      Type type = Type_none;
+      unsigned buildSize = 0;
+      unsigned targetSize = 0;
       for (unsigned j = 1; j < count; ++j) {
         switch (source[j - 1]) {
         case Type_object:

src/classpath-avian.cpp

@@ -605,6 +605,33 @@ Avian_java_lang_Thread_yield
   t->m->system->yield();
 }
 
+extern "C" JNIEXPORT int64_t JNICALL
+Avian_avian_Atomic_getOffset
+(Thread* t, object, uintptr_t* arguments)
+{
+  return fieldOffset
+    (t, jfieldVmField(t, reinterpret_cast<object>(arguments[0])));
+}
+
+extern "C" JNIEXPORT int64_t JNICALL
+Avian_avian_Atomic_compareAndSwapObject
+(Thread* t, object, uintptr_t* arguments)
+{
+  object target = reinterpret_cast<object>(arguments[0]);
+  int64_t offset; memcpy(&offset, arguments + 1, 8);
+  uintptr_t expect = arguments[3];
+  uintptr_t update = arguments[4];
+
+  bool success = atomicCompareAndSwap
+    (&cast<uintptr_t>(target, offset), expect, update);
+
+  if (success) {
+    mark(t, target, offset);
+  }
+
+  return success;
+}
+
 extern "C" JNIEXPORT int64_t JNICALL
 Avian_avian_Classes_primitiveClass
 (Thread* t, object, uintptr_t* arguments)

src/classpath-openjdk.cpp

@@ -2594,15 +2594,25 @@ Avian_sun_misc_Unsafe_compareAndSwapObject
 
 extern "C" JNIEXPORT int64_t JNICALL
 Avian_sun_misc_Unsafe_compareAndSwapLong
-(Thread*, object, uintptr_t* arguments)
+(Thread* t UNUSED, object, uintptr_t* arguments)
 {
   object target = reinterpret_cast<object>(arguments[1]);
   int64_t offset; memcpy(&offset, arguments + 2, 8);
   uint64_t expect; memcpy(&expect, arguments + 4, 8);
   uint64_t update; memcpy(&update, arguments + 6, 8);
 
+#ifdef AVIAN_HAS_CAS64
   return atomicCompareAndSwap64
     (&cast<uint64_t>(target, offset), expect, update);
+#else
+  ACQUIRE_FIELD_FOR_WRITE(t, local::fieldForOffset(t, target, offset));
+  if (cast<uint64_t>(target, offset) == expect) {
+    cast<uint64_t>(target, offset) = update;
+    return true;
+  } else {
+    return false;
+  }
+#endif
 }
 
 extern "C" JNIEXPORT int64_t JNICALL
@@ -2747,17 +2757,27 @@ Avian_sun_misc_Unsafe_park
   bool absolute = arguments[1];
   int64_t time; memcpy(&time, arguments + 2, 8);
   
+  int64_t then = t->m->system->now();
+
   if (absolute) {
-    time -= t->m->system->now();
+    time -= then;
     if (time <= 0) {
       return;
     }
+  } else {
+    time /= 1000 * 1000;
   }
 
   monitorAcquire(t, local::interruptLock(t, t->javaThread));
-  while (not (threadUnparked(t, t->javaThread)
-              or monitorWait(t, local::interruptLock(t, t->javaThread), time)))
-  { }
+  while (time > 0
+         and (not (threadUnparked(t, t->javaThread)
+                   or monitorWait
+                   (t, local::interruptLock(t, t->javaThread), time))))
+  {
+    int64_t now = t->m->system->now();
+    time -= now - then;
+    then = now;
+  }
   threadUnparked(t, t->javaThread) = false;
   monitorRelease(t, local::interruptLock(t, t->javaThread));
 }

src/compile.cpp

@@ -2011,7 +2011,7 @@ findExceptionHandler(Thread* t, object method, void* ip)
         if (key >= start and key < end) {
           object catchType = arrayBody(t, table, i + 1);
 
-          if (catchType == 0 or instanceOf(t, catchType, t->exception)) {
+          if (exceptionMatch(t, catchType, t->exception)) {
             return compiled + intArrayBody(t, index, (i * 3) + 2);
           }
         }
@@ -2274,7 +2274,7 @@ uintptr_t
 methodAddress(Thread* t, object method)
 {
   if (methodFlags(t, method) & ACC_NATIVE) {
-    return nativeThunk(static_cast<MyThread*>(t));
+    return bootNativeThunk(static_cast<MyThread*>(t));
   } else {
     return methodCompiled(t, method);
   }
@@ -8249,7 +8249,7 @@ class SignalHandler: public System::SignalHandler {
           t->exception = vm::root(t, root);
         }
 
-        //printTrace(t, t->exception);
+        // printTrace(t, t->exception);
 
         object continuation;
         findUnwindTarget(t, ip, frame, stack, &continuation);
@@ -8395,6 +8395,12 @@ class MyProcessor: public Processor {
               difference(&(t->virtualCallTarget), t));
       fprintf(stderr, "virtualCallIndex %d\n",
               difference(&(t->virtualCallIndex), t));
+      fprintf(stderr, "heapImage %d\n",
+              difference(&(t->heapImage), t));
+      fprintf(stderr, "codeImage %d\n",
+              difference(&(t->codeImage), t));
+      fprintf(stderr, "thunkTable %d\n",
+              difference(&(t->thunkTable), t));
       exit(0);
     }
 
@@ -8820,6 +8826,10 @@ class MyProcessor: public Processor {
 
     local::compileThunks(static_cast<MyThread*>(t), &codeAllocator);
 
+    if (not (image and code)) {
+      bootThunks = thunks;
+    }
+
     segFaultHandler.m = t->m;
     expect(t, t->m->system->success
            (t->m->system->handleSegFault(&segFaultHandler)));
@@ -8909,20 +8919,22 @@ compileMethod2(MyThread* t, void* ip)
 
   compile(t, codeAllocator(t), 0, target);
 
-  uintptr_t address;
-  if ((methodFlags(t, target) & ACC_NATIVE)
-      and useLongJump(t, reinterpret_cast<uintptr_t>(ip)))
-  {
-    address = bootNativeThunk(t);
-  } else {
-    address = methodAddress(t, target);
-  }
-
   uint8_t* updateIp = static_cast<uint8_t*>(ip);
 
   MyProcessor* p = processor(t);
 
-  if (updateIp < p->codeImage or updateIp >= p->codeImage + p->codeImageSize) {
+  bool updateCaller = updateIp < p->codeImage
+    or updateIp >= p->codeImage + p->codeImageSize;
+
+  uintptr_t address;
+  if (methodFlags(t, target) & ACC_NATIVE) {
+    address = useLongJump(t, reinterpret_cast<uintptr_t>(ip))
+      or (not updateCaller) ? bootNativeThunk(t) : nativeThunk(t);
+  } else {
+    address = methodAddress(t, target);
+  }
+
+  if (updateCaller) {
     UnaryOperation op;
     if (callNodeFlags(t, node) & TraceElement::LongCall) {
       if (callNodeFlags(t, node) & TraceElement::TailCall) {
@@ -9225,6 +9237,52 @@ fixupHeap(MyThread* t UNUSED, uintptr_t* map, unsigned size, uintptr_t* heap)
   }
 }
 
+void
+resetClassRuntimeState(Thread* t, object c, uintptr_t* heap, unsigned heapSize)
+{
+  classRuntimeDataIndex(t, c) = 0;
+
+  if (classArrayElementSize(t, c) == 0) {
+    object staticTable = classStaticTable(t, c);
+    if (staticTable) {
+      for (unsigned i = 0; i < singletonCount(t, staticTable); ++i) {
+        if (singletonIsObject(t, staticTable, i)
+            and (reinterpret_cast<uintptr_t*>
+                 (singletonObject(t, staticTable, i)) < heap or
+                 reinterpret_cast<uintptr_t*>
+                 (singletonObject(t, staticTable, i)) > heap + heapSize))
+        {
+          singletonObject(t, staticTable, i) = 0;
+        }
+      }
+    }
+  }
+
+  if (classMethodTable(t, c)) {
+    for (unsigned i = 0; i < arrayLength(t, classMethodTable(t, c)); ++i) {
+      object m = arrayBody(t, classMethodTable(t, c), i);
+
+      methodNativeID(t, m) = 0;
+      methodRuntimeDataIndex(t, m) = 0;
+
+      if (methodVmFlags(t, m) & ClassInitFlag) {
+        classVmFlags(t, c) |= NeedInitFlag;
+        classVmFlags(t, c) &= ~InitErrorFlag;
+      }
+    }
+  }
+
+  t->m->processor->initVtable(t, c);
+}
+
+void
+resetRuntimeState(Thread* t, object map, uintptr_t* heap, unsigned heapSize)
+{
+  for (HashMapIterator it(t, map); it.hasMore();) {
+    resetClassRuntimeState(t, tripleSecond(t, it.next()), heap, heapSize);
+  }
+}
+
 void
 fixupMethods(Thread* t, object map, BootImage* image UNUSED, uint8_t* code)
 {
@@ -9327,7 +9385,11 @@ boot(MyThread* t, BootImage* image, uint8_t* code)
   // fprintf(stderr, "code from %p to %p\n",
   //         code, code + image->codeSize);
  
-  fixupHeap(t, heapMap, heapMapSizeInWords, heap);
+  static bool fixed = false;
+
+  if (not fixed) {
+    fixupHeap(t, heapMap, heapMapSizeInWords, heap);
+  }
   
   t->m->heap->setImmortalHeap(heap, image->heapSize / BytesPerWord);
 
@@ -9372,11 +9434,30 @@ boot(MyThread* t, BootImage* image, uint8_t* code)
     
   findThunks(t, image, code);
 
-  fixupVirtualThunks(t, code);
+  if (fixed) {
+    resetRuntimeState
+      (t, classLoaderMap(t, root(t, Machine::BootLoader)), heap,
+       image->heapSize);
 
-  fixupMethods
-    (t, classLoaderMap(t, root(t, Machine::BootLoader)), image, code);
-  fixupMethods(t, classLoaderMap(t, root(t, Machine::AppLoader)), image, code);
+    resetRuntimeState
+      (t, classLoaderMap(t, root(t, Machine::AppLoader)), heap,
+       image->heapSize);
+
+    for (unsigned i = 0; i < arrayLength(t, t->m->types); ++i) {
+      resetClassRuntimeState
+        (t, type(t, static_cast<Machine::Type>(i)), heap, image->heapSize);
+    }
+  } else {
+    fixupVirtualThunks(t, code);
+
+    fixupMethods
+      (t, classLoaderMap(t, root(t, Machine::BootLoader)), image, code);
+
+    fixupMethods
+      (t, classLoaderMap(t, root(t, Machine::AppLoader)), image, code);
+  }
+
+  fixed = true;
 
   setRoot(t, Machine::BootstrapClassMap, makeHashMap(t, 0, 0));
 }

src/finder.cpp

@@ -920,7 +920,7 @@ class MyFinder: public Finder {
 
 namespace vm {
 
-Finder*
+JNIEXPORT Finder*
 makeFinder(System* s, Allocator* a, const char* path, const char* bootLibrary)
 {
   return new (a->allocate(sizeof(MyFinder))) MyFinder(s, a, path, bootLibrary);

src/heap.cpp

@@ -544,9 +544,9 @@ class Fixie {
   // you add/remove/change fields in this class:
 
   uint8_t age;
-  bool hasMask;
-  bool marked;
-  bool dirty;
+  uint8_t hasMask;
+  uint8_t marked;
+  uint8_t dirty;
   uint32_t size;
   Fixie* next;
   Fixie** handle;
@@ -560,7 +560,7 @@ fixie(void* body)
 }
 
 void
-free(Context* c, Fixie** fixies);
+free(Context* c, Fixie** fixies, bool resetImmortal = false);
 
 class Context {
  public:
@@ -630,9 +630,9 @@ class Context {
   }
 
   void disposeFixies() {
-    free(this, &tenuredFixies);
-    free(this, &dirtyTenuredFixies);
-    free(this, &fixies);
+    free(this, &tenuredFixies, true);
+    free(this, &dirtyTenuredFixies, true);
+    free(this, &fixies, true);
   }
 
   System* system;
@@ -846,13 +846,25 @@ bitset(Context* c UNUSED, void* o)
 }
 
 void
-free(Context* c, Fixie** fixies)
+free(Context* c, Fixie** fixies, bool resetImmortal)
 {
   for (Fixie** p = fixies; *p;) {
     Fixie* f = *p;
 
     if (f->immortal()) {
-      p = &(f->next);
+      if (resetImmortal) {
+        if (DebugFixies) {
+          fprintf(stderr, "reset immortal fixie %p\n", f);
+        }
+        *p = f->next;
+        memset(f->mask(), 0, Fixie::maskSize(f->size, f->hasMask));
+        f->next = 0;
+        f->handle = 0;
+        f->marked = false;
+        f->dirty = false;
+      } else {      
+        p = &(f->next);
+      }
     } else {
       *p = f->next;
       if (DebugFixies) {

src/interpret.cpp

@@ -698,7 +698,7 @@ findExceptionHandler(Thread* t, object method, unsigned ip)
           }
         }
 
-        if (catchType == 0 or instanceOf(t, catchType, t->exception)) {
+        if (exceptionMatch(t, catchType, t->exception)) {
           return eh;
         }
       }

src/jnienv.cpp

@@ -3024,6 +3024,8 @@ boot(Thread* t, uintptr_t*)
   setRoot(t, Machine::OutOfMemoryError,
           makeThrowable(t, Machine::OutOfMemoryErrorType));
 
+  setRoot(t, Machine::Shutdown, makeThrowable(t, Machine::ThrowableType));
+
   setRoot(t, Machine::FinalizerThread, t->m->classpath->makeThread(t, t));
 
   threadDaemon(t, root(t, Machine::FinalizerThread)) = true;

src/machine.cpp

@@ -45,6 +45,15 @@ void
 join(Thread* t, Thread* o)
 {
   if (t != o) {
+    // todo: There's potentially a leak here on systems where we must
+    // call join on a thread in order to clean up all resources
+    // associated with it.  If a thread has already been zombified by
+    // the time we get here, acquireSystem will return false, which
+    // means we can't safely join it because the System::Thread may
+    // already have been disposed.  In that case, the thread has
+    // already exited (or will soon), but the OS will never free all
+    // its resources because it doesn't know we're completely done
+    // with it.
     if (acquireSystem(t, o)) {
       o->systemThread->join();
       releaseSystem(t, o);
@@ -138,35 +147,37 @@ dispose(Thread* t, Thread* o, bool remove)
 }
 
 void
-joinAll(Thread* m, Thread* o)
+visitAll(Thread* m, Thread* o, void (*visit)(Thread*, Thread*))
 {
   for (Thread* p = o->child; p;) {
     Thread* child = p;
     p = p->peer;
-    joinAll(m, child);
+    visitAll(m, child, visit);
   }
 
-  join(m, o);
+  visit(m, o);
 }
 
 void
-disposeAll(Thread* m, Thread* o)
+disposeNoRemove(Thread* m, Thread* o)
 {
-  for (Thread* p = o->child; p;) {
-    Thread* child = p;
-    p = p->peer;
-    disposeAll(m, child);
-  }
-
   dispose(m, o, false);
 }
 
+void
+interruptDaemon(Thread* m, Thread* o)
+{
+  if (o->flags & Thread::DaemonFlag) {
+    interrupt(m, o);
+  }
+}
+
 void
 turnOffTheLights(Thread* t)
 {
   expect(t, t->m->liveCount == 1);
 
-  joinAll(t, t->m->rootThread);
+  visitAll(t, t->m->rootThread, join);
 
   enter(t, Thread::ExitState);
 
@@ -215,7 +226,7 @@ turnOffTheLights(Thread* t)
 
   Machine* m = t->m;
 
-  disposeAll(t, t->m->rootThread);
+  visitAll(t, t->m->rootThread, disposeNoRemove);
 
   System* s = m->system;
   Heap* h = m->heap;
@@ -1662,13 +1673,17 @@ parseMethodTable(Thread* t, Stream& s, object class_, object pool)
         set(t, addendum, ClassAddendumMethodTable,
             classMethodTable(t, class_));
 
-        unsigned oldLength = arrayLength(t, classMethodTable(t, class_));
+        unsigned oldLength = classMethodTable(t, class_) ?
+          arrayLength(t, classMethodTable(t, class_)) : 0;
+
         object newMethodTable = makeArray
           (t, oldLength + listSize(t, abstractVirtuals));
 
-        memcpy(&arrayBody(t, newMethodTable, 0),
-               &arrayBody(t, classMethodTable(t, class_), 0),
-               oldLength * sizeof(object));
+        if (oldLength) {
+          memcpy(&arrayBody(t, newMethodTable, 0),
+                 &arrayBody(t, classMethodTable(t, class_), 0),
+                 oldLength * sizeof(object));
+        }
 
         mark(t, newMethodTable, ArrayBody, oldLength);
 
@@ -2443,6 +2458,7 @@ Machine::Machine(System* system, Heap* heap, Finder* bootFinder,
   collecting(false),
   triedBuiltinOnLoad(false),
   dumpedHeapOnOOM(false),
+  alive(true),
   heapPoolIndex(0)
 {
   heap->setClient(heapClient);
@@ -2566,7 +2582,7 @@ Thread::init()
 
     enter(this, ActiveState);
 
-    if (image and image) {
+    if (image and code) {
       m->processor->boot(this, image, code);
     } else {
       boot(this);
@@ -2694,6 +2710,17 @@ shutDown(Thread* t)
       }
     }
   }
+
+  // interrupt daemon threads and tell them to die
+
+  // todo: be more aggressive about killing daemon threads, e.g. at
+  // any GC point, not just at waits/sleeps
+  { ACQUIRE(t, t->m->stateLock);
+
+    t->m->alive = false;
+
+    visitAll(t, t->m->rootThread, interruptDaemon);
+  }
 }
 
 void
@@ -3247,9 +3274,7 @@ classInitializer(Thread* t, object class_)
     {
       object o = arrayBody(t, classMethodTable(t, class_), i);
 
-      if (vm::strcmp(reinterpret_cast<const int8_t*>("<clinit>"),
-                     &byteArrayBody(t, methodName(t, o), 0)) == 0)
-      {
+      if (methodVmFlags(t, o) & ClassInitFlag) {
         return o;
       }               
     }
@@ -3798,6 +3823,9 @@ initClass(Thread* t, object c)
 object
 resolveObjectArrayClass(Thread* t, object loader, object elementClass)
 {
+  PROTECT(t, loader);
+  PROTECT(t, elementClass);
+
   { object arrayClass = classRuntimeDataArrayClass
       (t, getClassRuntimeData(t, elementClass));
     if (arrayClass) {
@@ -3805,9 +3833,6 @@ resolveObjectArrayClass(Thread* t, object loader, object elementClass)
     }
   }
 
-  PROTECT(t, loader);
-  PROTECT(t, elementClass);
-
   object elementSpec = className(t, elementClass);
   PROTECT(t, elementSpec);
 

src/machine.h

@@ -157,8 +157,7 @@ const unsigned ContinuationFlag = 1 << 11;
 
 // method vmFlags:
 const unsigned ClassInitFlag = 1 << 0;
-const unsigned CompiledFlag = 1 << 1;
-const unsigned ConstructorFlag = 1 << 2;
+const unsigned ConstructorFlag = 1 << 1;
 
 #ifndef JNI_VERSION_1_6
 #define JNI_VERSION_1_6 0x00010006
@@ -1266,6 +1265,7 @@ class Machine {
     ArithmeticException,
     ArrayIndexOutOfBoundsException,
     OutOfMemoryError,
+    Shutdown,
     VirtualFileFinders,
     VirtualFiles
   };
@@ -1322,6 +1322,7 @@ class Machine {
   bool collecting;
   bool triedBuiltinOnLoad;
   bool dumpedHeapOnOOM;
+  bool alive;
   JavaVMVTable javaVMVTable;
   JNIEnvVTable jniEnvVTable;
   uintptr_t* heapPool[ThreadHeapPoolSize];
@@ -1357,6 +1358,9 @@ run(Thread* t, uint64_t (*function)(Thread*, uintptr_t*),
 void
 checkDaemon(Thread* t);
 
+object&
+root(Thread* t, Machine::Root root);
+
 extern "C" uint64_t
 vmRun(uint64_t (*function)(Thread*, uintptr_t*), uintptr_t* arguments,
       void* checkpoint);
@@ -1507,7 +1511,7 @@ class Thread {
 
       vm::run(t, runThread, 0);
 
-      if (t->exception) {
+      if (t->exception and t->exception != root(t, Machine::Shutdown)) {
         printTrace(t, t->exception);
       }
 
@@ -3182,7 +3186,11 @@ wait(Thread* t, object o, int64_t milliseconds)
     bool interrupted = monitorWait(t, m, milliseconds);
 
     if (interrupted) {
-      throwNew(t, Machine::InterruptedExceptionType);
+      if (t->m->alive or (t->flags & Thread::DaemonFlag) == 0) {
+        throwNew(t, Machine::InterruptedExceptionType);
+      } else {
+        throw_(t, root(t, Machine::Shutdown));
+      }
     }
   } else {
     throwNew(t, Machine::IllegalMonitorStateExceptionType);
@@ -3256,6 +3264,14 @@ getAndClearInterrupted(Thread* t, Thread* target)
   }
 }
 
+inline bool
+exceptionMatch(Thread* t, object type, object exception)
+{
+  return type == 0
+    or (exception != root(t, Machine::Shutdown)
+        and instanceOf(t, type, t->exception));
+}
+
 object
 intern(Thread* t, object s);
 

src/posix.cpp

@@ -169,7 +169,7 @@ class MySystem: public System {
     }
 
     virtual void dispose() {
-      s->free(this);
+      ::free(this);
     }
 
     pthread_t thread;
@@ -197,7 +197,7 @@ class MySystem: public System {
 
     virtual void dispose() {
       pthread_mutex_destroy(&mutex);
-      s->free(this);
+      ::free(this);
     }
 
     System* s;
@@ -410,7 +410,7 @@ class MySystem: public System {
     virtual void dispose() {
       expect(s, owner_ == 0);
       pthread_mutex_destroy(&mutex);
-      s->free(this);
+      ::free(this);
     }
 
     System* s;
@@ -441,7 +441,7 @@ class MySystem: public System {
       int r UNUSED = pthread_key_delete(key);
       expect(s, r == 0);
 
-      s->free(this);
+      ::free(this);
     }
 
     System* s;
@@ -468,7 +468,7 @@ class MySystem: public System {
       if (start_) {
         munmap(start_, length_);
       }
-      s->free(this);
+      ::free(this);
     }
 
     System* s;
@@ -494,7 +494,7 @@ class MySystem: public System {
       if (directory) {
         closedir(directory);
       }
-      s->free(this);
+      ::free(this);
     }
 
     System* s;
@@ -541,10 +541,10 @@ class MySystem: public System {
       }
 
       if (name_) {
-        s->free(name_);
+        ::free(const_cast<char*>(name_));
       }
 
-      s->free(this);
+      ::free(this);
     }
 
     System* s;
@@ -772,13 +772,22 @@ class MySystem: public System {
   }
 
   virtual FileType stat(const char* name, unsigned* length) {
-    struct stat s;
-    int r = ::stat(name, &s);
+    // Ugly Hack Alert: It seems that the Apple iOS Simulator's stat
+    // implementation writes beyond the end of the struct stat we pass
+    // it, which can clobber unrelated parts of the stack.  Perhaps
+    // this is due to some kind of header/library mismatch, but I've
+    // been unable to track it down so far.  The workaround is to give
+    // it 8 words more than it should need, where 8 is a number I just
+    // made up and seems to work.
+    void* array[ceiling(sizeof(struct stat), sizeof(void*)) + 8];
+    struct stat* s = reinterpret_cast<struct stat*>(array);
+
+    int r = ::stat(name, s);
     if (r == 0) {
-      if (S_ISREG(s.st_mode)) {
-        *length = s.st_size;
+      if (S_ISREG(s->st_mode)) {
+        *length = s->st_size;
         return TypeFile;
-      } else if (S_ISDIR(s.st_mode)) {
+      } else if (S_ISDIR(s->st_mode)) {
         *length = 0;
         return TypeDirectory;
       } else {
@@ -990,7 +999,7 @@ handleSignal(int signal, siginfo_t*, void* context)
 
 namespace vm {
 
-System*
+JNIEXPORT System*
 makeSystem(const char*)
 {
   return new (malloc(sizeof(MySystem))) MySystem();

src/powerpc.cpp

@@ -2733,11 +2733,12 @@ class MyAssembler: public Assembler {
 
         assert(&c, jumpTableSize);
 
-        if (needJump(b)) {
+        bool jump = needJump(b);
+        if (jump) {
           write4(dst + dstOffset, ::b(jumpTableSize + TargetBytesPerWord));
         }
 
-        dstOffset += jumpTableSize + TargetBytesPerWord;
+        dstOffset += jumpTableSize + (jump ? TargetBytesPerWord : 0);
       }
 
       unsigned size = b->size - blockOffset;
@@ -2749,7 +2750,7 @@ class MyAssembler: public Assembler {
       dstOffset += size;
     }
     
-    unsigned index = c.code.length();
+    unsigned index = dstOffset;
     assert(&c, index % TargetBytesPerWord == 0);
     for (ConstantPoolEntry* e = c.constantPool; e; e = e->next) {
       e->address = dst + index;

src/target.h

@@ -147,7 +147,7 @@ const unsigned TargetFieldOffset = 8;
 
 const unsigned TargetBitsPerWord = TargetBytesPerWord * 8;
 
-const uintptr_t TargetPointerMask
+const target_uintptr_t TargetPointerMask
 = ((~static_cast<target_uintptr_t>(0)) / TargetBytesPerWord)
   * TargetBytesPerWord;
 

src/windows.cpp

@@ -119,7 +119,7 @@ class MySystem: public System {
       CloseHandle(event);
       CloseHandle(mutex);
       CloseHandle(thread);
-      s->free(this);
+      ::free(this);
     }
 
     HANDLE thread;
@@ -150,7 +150,7 @@ class MySystem: public System {
 
     virtual void dispose() {
       CloseHandle(mutex);
-      s->free(this);
+      ::free(this);
     }
 
     System* s;
@@ -377,7 +377,7 @@ class MySystem: public System {
     virtual void dispose() {
       assert(s, owner_ == 0);
       CloseHandle(mutex);
-      s->free(this);
+      ::free(this);
     }
 
     System* s;
@@ -408,7 +408,7 @@ class MySystem: public System {
       bool r UNUSED = TlsFree(key);
       assert(s, r);
 
-      s->free(this);
+      ::free(this);
     }
 
     System* s;
@@ -472,7 +472,7 @@ class MySystem: public System {
       if (handle and handle != INVALID_HANDLE_VALUE) {
         FindClose(handle);
       }
-      s->free(this);
+      ::free(this);
     }
 
     System* s;
@@ -523,10 +523,10 @@ class MySystem: public System {
       }
 
       if (name_) {
-        s->free(name_);
+        ::free(const_cast<char*>(name_));
       }
 
-      s->free(this);
+      ::free(this);
     }
 
     System* s;
@@ -986,7 +986,7 @@ handleException(LPEXCEPTION_POINTERS e)
 
 namespace vm {
 
-System*
+JNIEXPORT System*
 makeSystem(const char* crashDumpDirectory)
 {
   return new (malloc(sizeof(MySystem))) MySystem(crashDumpDirectory);

src/x86.h

@@ -255,6 +255,8 @@ atomicCompareAndSwap32(uint32_t* p, uint32_t old, uint32_t new_)
 #endif
 }
 
+#define AVIAN_HAS_CAS64
+
 inline bool
 atomicCompareAndSwap64(uint64_t* p, uint64_t old, uint64_t new_)
 {

test/Files.java

@@ -0,0 +1,29 @@
+import java.io.File;
+
+public class Files {
+  private static void expect(boolean v) {
+    if (! v) throw new RuntimeException();
+  }
+  
+  private static void isAbsoluteTest(boolean absolutePath) {
+    File file = new File("test.txt");
+    if (absolutePath) {
+      file = file.getAbsoluteFile();
+    }
+    
+    boolean isAbsolute = file.isAbsolute();
+    
+    if (absolutePath) {
+      expect(isAbsolute);
+    } else {
+      expect(!isAbsolute);
+    }
+    
+  }
+  
+  public static void main(String[] args) {
+    isAbsoluteTest(true);
+    isAbsoluteTest(false);
+  }
+
+}

test/Floats.java

@@ -229,5 +229,36 @@ public class Floats {
       double d = (double) z;
       expect(d == 12345.0);
     }
+
+    // Test floatToIntBits 
+    { 
+      int orig = 0x7f800001;
+      float NaN = Float.intBitsToFloat(orig);
+      int result = Float.floatToIntBits(NaN);
+      int expected = 0x7fc00000;
+      expect(result == expected);
+    }
+    
+    { 
+      int orig = 0x7f801001;
+      float NaN = Float.intBitsToFloat(orig);
+      int result = Float.floatToIntBits(NaN);
+      int expected = 0x7fc00000;
+      expect(result == expected);
+    }
+    
+    {
+      int orig = 0x00800001;
+      float number = Float.intBitsToFloat(orig);
+      int result = Float.floatToIntBits(number);
+      expect(result == orig);
+    }
+    
+    {
+      int orig = 0x80800003;
+      float number = Float.intBitsToFloat(orig);
+      int result = Float.floatToIntBits(number);
+      expect(result == orig);
+    }
   }
 }

test/Processes.java

@@ -0,0 +1,31 @@
+import java.io.IOException;
+
+public class Processes {
+  public static void main(String[] args) {
+    long start = System.currentTimeMillis();
+    try {
+      final Process p = Runtime.getRuntime().exec("sleep 10");
+      new Thread() {
+        public void run() {
+          try {
+            Thread.sleep(100);
+          } catch(InterruptedException e) {
+            // ignore
+          }
+          p.destroy();
+        }
+      }.start();
+      try {
+        p.waitFor();
+      } catch(InterruptedException e) {
+        // ignore
+      }
+      long stop = System.currentTimeMillis();
+      if(stop - start > 5000) {
+        throw new RuntimeException("test failed; we didn't kill the process...");
+      }
+    } catch(IOException e) {
+      throw new RuntimeException(e);
+    }
+  }
+}

test/UrlTest.java

@@ -0,0 +1,42 @@
+import java.net.MalformedURLException;
+import java.net.URL;
+
+public class UrlTest {
+  private static String query="var1=val1&var2=val2";
+  private static String path="testpath";
+  private static String domain="file://www.readytalk.com";
+  private static String file=path + "?" + query;
+  private static URL url;
+  
+  private static void expect(boolean v) {
+    if (! v) throw new RuntimeException();
+  }
+  
+  private static void setupURL() throws MalformedURLException {
+    StringBuilder builder = new StringBuilder();
+    builder.append(domain);
+    builder.append("/");
+    builder.append(file);
+    url = new URL(builder.toString());
+  }
+  
+  private static void testGetPath() {
+    expect(url.getPath().equals(path));
+  }
+  
+  private static void testGetFile() {
+    expect(url.getFile().equals(file));
+  }
+  
+  private static void testGetQuery() {
+    expect(url.getQuery().equals(query));
+  }
+
+  public static void main(String[] args) throws MalformedURLException {
+    setupURL();
+    testGetPath();
+    testGetFile();
+    testGetQuery();
+  }
+
+}