import sun.jvm.hotspot.memory.SymbolTable; //导入依赖的package包/类
public void doit(Tokens t) {
    if (t.countTokens() != 1) {
        usage();
    } else {
        out.println(SymbolTable.getTheTable().probe(t.nextToken()));
    }
}
 

import sun.jvm.hotspot.memory.SymbolTable; //导入依赖的package包/类
private void initClassNameSymbols() {
    SymbolTable st = saSymbolTable();
    javaLangString = st.probe("java/lang/String");
    javaLangThread = st.probe("java/lang/Thread");
    javaLangThreadGroup = st.probe("java/lang/ThreadGroup");
    javaLangClass = st.probe("java/lang/Class");
    javaLangClassLoader = st.probe("java/lang/ClassLoader");
    javaLangThrowable = st.probe("java/lang/Throwable");
    javaLangObject = st.probe("java/lang/Object");
    javaLangCloneable = st.probe("java/lang/Cloneable");
    javaIoSerializable = st.probe("java/io/Serializable");
    javaLangEnum = st.probe("java/lang/Enum");
}
 

import sun.jvm.hotspot.memory.SymbolTable; //导入依赖的package包/类
private void writeSymbols() throws IOException {
  try {
    symTbl.symbolsDo(new SymbolTable.SymbolVisitor() {
      public void visit(Symbol sym) {
        try {
          writeSymbol(sym);
        } catch (IOException exp) {
          throw new RuntimeException(exp);
        }
      }
    });
  } catch (RuntimeException re) {
    handleRuntimeException(re);
  }
}
 

import sun.jvm.hotspot.memory.SymbolTable; //导入依赖的package包/类
public FastObjectHeap(TypeDataBase db, SymbolTable symTbl) {
  super(db);

  Type klassType = db.lookupType("Klass");
  klassLayoutHelper = new IntField(klassType.getJIntField("_layout_helper"), 0L);
  klassName = klassType.getAddressField("_name");

  Type objArrayKlassType = db.lookupType("ObjArrayKlass");
  objArrayBottomKlass = objArrayKlassType.getAddressField("_bottom_klass");

  Type oopType = db.lookupType("oopDesc");
  oopKlass = new MetadataField(oopType.getAddressField("_metadata._klass"), 0L);
  oopCompressedKlass = new NarrowKlassField(oopType.getAddressField("_metadata._compressed_klass"), 0L);

  Type jlc = db.lookupType("java_lang_Class");
  oopKlassOffset = jlc.getCIntegerField("_klass_offset").getValue();
  oopArrayKlassOffset = jlc.getCIntegerField("_array_klass_offset").getValue();

  javaLangClass = symTbl.probe("java/lang/Class");

  try {
    Field f = db.getClass().getSuperclass().getDeclaredField("vtblAccess");
    f.setAccessible(true);
    vtblAccess = (VtblAccess) f.get(db);
    klassVtbls = new HashSet<Address>();
    for (String type : KLASS_TYPES) {
      Address a = vtblAccess.getVtblForType(db.lookupType(type));
      if (a == null) {
        throw new IllegalStateException();
      }
      klassVtbls.add(a);
    }
    instanceMirrorKlassVtbl = vtblAccess.getVtblForType(db.lookupType("InstanceMirrorKlass"));
  } catch (Exception e) {
    throw new RuntimeException(e);
  }
}
 

import sun.jvm.hotspot.memory.SymbolTable; //导入依赖的package包/类
SymbolTable saSymbolTable() {
    return saSymbolTable;
}