I run jstack on a java process (oracle jdk1.7_072) and found these lines "C2 CompilerThread1" daemon prio=10 tid=0x00007f1a8415d000 nid=0x7d72 waiting on condition [0x0000000000000000] java.lang.Thread.State: RUNNABLE "C2 CompilerThread0" daemon prio=10 tid=0x00007f1a8415a000 nid=0x7d...
Oracle Functions: function BLOB_THUMBNAIL(P_BLOB in Blob, P_MAX_SIZE in Number, P_ATTACH_SID in varchar2 := null) return Blob is V_DST Blob; begin V_DST := resizeBLOB(P_BLOB, P_MAX_SIZE, P_MAX_SIZE); end BLOB_THUMBNAIL; function BLOB_THUMBNAIL_OLD(P_BLOB in Bl...
经过测试笔者选择的Oracle OpenJDK 17,stackSize与递归深度关系不是很大,有的时候甚至成反比。 守护线程 Java中通过将线程设置为守护线程(daemon thread)来指示该线程为守护线程。守护线程在没有用户线程(也就是剩余线程均为守护线程,JVM会退出)继续运行时会自动终止。这对于执行后台任务或提供服务的线程非常有用,因为...
属性名型導入されたバージョン threadId java.lang.Long 5 threadName java.lang.String 5 threadState java.lang.String 5 suspended java.lang.Boolean 5 inNative java.lang.Boolean 5 blockedCount java.lang.Long 5 blockedTime java.lang.Long 5 waitedCount java.lang.Long 5 waitedTime java.lang.Long...
/*Java thread status for tools, * initialized to indicate thread 'not yet started'*/privatevolatileintthreadStatus = 0; 但是奇怪的是发现在Thread类中并没有对threadStatus进行过赋值。故猜测原因是在native方法中对threadStatus进行赋值。因为该变量由volatile修饰,因此在native方法进行变量修改的同时Thread类中...
序列不存在就在你对应的数据库下创建序列,创建序列的SQL如下:CREATE SEQUENCE HIBERNATE_SEQUENCE MINVALUE 0 MAXVALUE 999999999999999999999999;
/** Copyright (c) 1994, 2016, Oracle and/or its affiliates. All rights reserved.* ORACLE PROPRIETARY/CONFIDENTIAL. Use is subject to license terms.*/packagejava.lang;importjava.lang.ref.Reference;importjava.lang.ref.ReferenceQueue;importjava.lang.ref.WeakReference;importjava.security.AccessController...
Full Thread Dump in Java HotSpot Java HotSpot is a high-performance virtual machine developed by Oracle Corporation that runs Java applications. It includes a feature called “Full Thread Dump” which provides a detailed snapshot of all the threads running in a Java application at a specific mome...
Class.forName("oracle.jdbc.driver.OracleDrive");写掉了r应该为oracle.jdbc.driver.OracleDriver 如果还是有问题,看看你的jar包是不是有问题,重新下载个换掉原来的
The code is running with other versions of Bouncy Castle Jars. The reason of using this version is Oracle Latest Web Logic patch for 12.1.2.4 uses the same version of jars. Exception in thread "main" java.lang.NoClassDefFoundError: org/bouncycastle/asn1/cms/CMSObjectIdentifiers ...