实现@Unit 注解(也被称为元数据)为我们在代码中添加信息提供了一种形式化的方式,使我们可以在稍后的某个时刻更容易的使用这些数据。 注解在一定程度上是把元数据和源代码文件结合在一起的趋势所激发的,而不是保存在外部文档。这同样是对像 C# 语言对于Java语言特性压力的一种回应。 注解是 Java 5 所引入的众多...
* retransformClasses可以修改方法体,但是不能变更方法签名、增加和删除方法/类的成员属性*/voidretransformClasses(Class<?>... classes) throws UnmodifiableClassException;/** * 获取一个对象的大小*/longgetObjectSize(Object objectToSize);/** * 将一个jar加入到bootstrap classloader的 classpath里*/voidappend...
intx ArrayCopyLoadStoreMaxElem = 8 size_t AsyncLogBufferSize = 2097152 intx AutoBoxCacheMax = 128 intx BCEATraceLevel = 0 bool BackgroundCompilation = true size_t BaseFootPrintEstimate = 268435456 intx BiasedLockingBulkRebiasThreshold = 20 intx BiasedLockingBulkRevokeThreshold = 40 intx ...
InvalidKeyException; public static final class Decapsulator { String providerName(); int secretSize(); // Size of the shared secret int encapsulationSize(); // Size of the key encapsulation message SecretKey
result = _young_gen->expand_and_allocate(size, is_tlab); } } assert(result ==NULL|| is_in_reserved(result),"result not in heap");returnresult; } 整个伸缩的模型理解可以看这个图,当 committed 的空间大小超过了低水位/高水位的大小,capacity 也会随之调整: ...
(is_absolute_path =match_option(option,"-agentpath:", &tail))) {if(tail !=NULL) {constchar* pos =strchr(tail,'=');size_tlen = (pos ==NULL) ?strlen(tail) : pos - tail;char* name =strncpy(NEW_C_HEAP_ARRAY(char, len +1, mtArguments), tail, len); ...
size();}if(Universe::is_bootstrapping()&&vtable_length==0){// array classes don't have their superclass set correctly during// bootstrappingvtable_length=Universe::base_vtable_size();}if(super==NULL&&!Universe::is_bootstrapping()&&vtable_length!=Universe::base_vtable_size()){// ...
/** * @param scale 精确到小数点以后几位 (Accurate to a few decimal places) */ fun formatFileSize(size: Long, scale: Int, withUnit: Boolean = false): String { val divisor = 1024L //ROUND_DOWN 1023 -> 1023B ; ROUND_HALF_UP 1023 -> 1KB val kiloByte: BigDecimal = formatSizeBy...
limiting the maximum size of the generated Java Virtual Machine code for any method, instance initialization method, or static initializer (the size of any code array) to 65534 bytes 如果方法的Java虚拟机代码恰好是65535字节长,并且以一条1字节长的指令结束,那么该指令就不能被异常处理程序保护。编译器...
for(int i=0;i<size;i++){ arraydest[i] = array[i]; } } long useTime...