objArrayHandle ptypes, BasicType rtype, objArrayHandle args, bool is_method_invoke, TRAPS) { ResourceMark rm(THREAD); methodHandle method; // actual method to invoke KlassHandle target_klass; // target klass, receiver's klass for non-static // Ensure klass is initialized klass->initialize(...
Engine=newSM2Engine(); sm2Engine.init(true,newParametersWithRandom(ecPublicKeyParameters,newSecureRandom()));byte[] arrayOfBytes =null;try {byte[] in = data.getBytes("utf-8"); arrayOfBytes = sm2Engine.processBlock(in,0, in.length); }catch (Exception e) { System.out.println("SM2加密时...
public static <T> void bubbleSortWithComparator( T arr[], Comparator<? super T> c) { int n = arr.length; for (int i = 0; i < n - 1; i++) { for (int j = 0; j < n - i - 1; j++) { if (c.compare(arr[j], arr[j + 1]) > 0) { T temp = arr[j]; arr[j...
HotSpot 里的许多 GC 算法都带有自适应的功能,会根据先前收集的效率来决定接下来的 GC 中使用的参数,但 System.gc 默认不更新这些统计数据,避免用户强行 GC 对这些自适应功能的干扰(可以参考 -XX:+UseAdaptiveSizePolicyWithSystemGC 参数,默认是 false)。
原文:Programming Basics: Getting Started with Java, C#, and Python 协议:CC BY-NC-SA 4.0 一、编程的基础 视频游戏、社交网络和你的活动手环有什么共同点?它们运行在一群(或多或少)程序员在很远很远的地方编写的软件上。在我们这个技术驱动的社会中,小工具和硬件只是硬币更明显的一面。在这一章中,我们将...
("2.16.840.1.113730.1.1"); /* * Initialize checker */ public void init(boolean forward) throws CertPathValidatorException { // nothing to initialize } public Set getSupportedExtensions() { return supportedExtensions; } public boolean isForwardCheckingSupported() { return true; } /* * Check ...
// Rely on default serialization; just initialize state after deserialization. ois.defaultReadObject(); // Create template for client-side JNDI lookup. this.jndiTemplate = new JndiTemplate(); // Perform a fresh lookup for JTA handles. initUserTransactionAndTransactionManager(); ...
深入学习java源码之Byte.decode()与Byte.toUnsignedInt() 异常 异常就是有异于常态,和正常情况不一样,有错误出错。在java中,阻止当前方法或作用域的情况,称之为异常。 其中Error类中包括虚拟机错误和线程死锁,一旦Error出现了,程序就彻底的挂了,被称为程序终结者; ...
That is, the object is reset and available to generate another signature with the same private key, if desired, via new calls to update and sign.Alternatively, a new call can be made to initSign specifying a different private key, or to initVerify (to initialize the Signature object to ...
catHome.endsWith("/")) { catHome = catHome + "/"; } return catHome; } 加载模块 package com.dianping.cat; // this should be called during application initialization time public static void initialize(File configFile) { try { if (!s_init) { synchronized (s_instance) { if (!s_...