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Add a VMLangAccess method to create threads #5778

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May 16, 2019
Merged

Add a VMLangAccess method to create threads #5778

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16 changes: 15 additions & 1 deletion jcl/src/java.base/share/classes/com/ibm/oti/vm/VMLangAccess.java
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Original file line number Diff line number Diff line change
Expand Up @@ -11,7 +11,7 @@


/*******************************************************************************
* Copyright (c) 2012, 2018 IBM Corp. and others
* Copyright (c) 2012, 2019 IBM Corp. and others
*
* This program and the accompanying materials are made available under
* the terms of the Eclipse Public License 2.0 which accompanies this
Expand Down Expand Up @@ -155,4 +155,18 @@ public interface VMLangAccess {
public void addPackageToList(Class<?> newClass, ClassLoader loader);
/*[ENDIF] Sidecar19-SE */

/**
* Create a thread that it has runnable as its run object, has threadName as its name, has contextClassLoader as its context ClassLoader,
* has an option to be part of system thread group, has an option to inherit ThreadLocals or not, and has an option to set isDaemon.
*
* @param runnable A java.lang.Runnable whose method <code>run</code> will be executed by the new Thread
* @param threadName Name for the Thread being created
* @param isSystemThreadGroup A boolean indicating whether the thread to be created belongs to the system thread group
* @param inheritThreadLocals A boolean indicating whether to inherit initial values for inheritable thread-local variables
* @param isDaemon Indicates whether or not the Thread being created is a daemon thread
* @param contextClassLoader The context ClassLoader
*
* @return A java.lang.Thread created
*/
public Thread createThread(Runnable runnable, String threadName, boolean isSystemThreadGroup, boolean inheritThreadLocals, boolean isDaemon, ClassLoader contextClassLoader);
}
6 changes: 6 additions & 0 deletions jcl/src/java.base/share/classes/java/lang/Thread.java
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Expand Up @@ -349,6 +349,12 @@ public Thread(ThreadGroup group, Runnable runnable, String threadName) {
this(group, runnable, threadName, null, true);
}

Thread(Runnable runnable, String threadName, boolean isSystemThreadGroup, boolean inheritThreadLocals, boolean isDaemon, ClassLoader contextClassLoader) {
this(isSystemThreadGroup ? systemThreadGroup : null, runnable, threadName, null, inheritThreadLocals);
this.isDaemon = isDaemon;
this.contextClassLoader = contextClassLoader;
}

private Thread(ThreadGroup group, Runnable runnable, String threadName, AccessControlContext acc, boolean inheritThreadLocals) {
super();
/*[PR 1FEVFSU] Re-arrange method so that common code to this constructor and the private one the VM calls can be put in a separate method */
Expand Down
6 changes: 5 additions & 1 deletion jcl/src/java.base/share/classes/java/lang/VMAccess.java
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Expand Up @@ -2,7 +2,7 @@
package java.lang;

/*******************************************************************************
* Copyright (c) 2012, 2018 IBM Corp. and others
* Copyright (c) 2012, 2019 IBM Corp. and others
*
* This program and the accompanying materials are made available under
* the terms of the Eclipse Public License 2.0 which accompanies this
Expand Down Expand Up @@ -216,4 +216,8 @@ public void addPackageToList(java.lang.Class<?> newClass, ClassLoader loader) {
}
/*[ENDIF] Sidecar19-SE */

@Override
public Thread createThread(Runnable runnable, String threadName, boolean isSystemThreadGroup, boolean inheritThreadLocals, boolean isDaemon, ClassLoader contextClassLoader) {
return new Thread(runnable, threadName, isSystemThreadGroup, inheritThreadLocals, isDaemon, contextClassLoader);
}
}