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test/runtime/6626217/Loader2.java@dbb05f6d93c4 (annotated)

test/runtime/6626217/Loader2.java

Mon, 28 Jul 2014 15:06:38 -0700

author

fzhinkin

date

Mon, 28 Jul 2014 15:06:38 -0700

changeset 6997

dbb05f6d93c4

parent 0

f90c822e73f8

permissions

-rw-r--r--

8051344: JVM crashed in Compile::start() during method parsing w/ UseRTMDeopt turned on
Summary: call rtm_deopt() only if there were no compilation bailouts before.
Reviewed-by: kvn

aoqi@0	1	import java.io.ByteArrayInputStream;
aoqi@0	2	import java.io.FileInputStream;
aoqi@0	3	public class Loader2 extends ClassLoader {
aoqi@0	4	int _recur;
aoqi@0	5	public void print( String msg ) {
aoqi@0	6	for( int i=0; i<_recur; i++ )
aoqi@0	7	System.out.print(" ");
aoqi@0	8	System.out.println(">>Loader2>> "+msg);
aoqi@0	9	}
aoqi@0	10
aoqi@0	11	protected Class findClass2(String name) throws ClassNotFoundException {
aoqi@0	12	print("Fetching the implementation of "+name);
aoqi@0	13	int old = _recur;
aoqi@0	14	try {
aoqi@0	15	FileInputStream fi = new FileInputStream(name+".impl2");
aoqi@0	16	byte result[] = new byte[fi.available()];
aoqi@0	17	fi.read(result);
aoqi@0	18
aoqi@0	19	print("DefineClass1 on "+name);
aoqi@0	20	_recur++;
aoqi@0	21	Class clazz = defineClass(name, result, 0, result.length);
aoqi@0	22	_recur = old;
aoqi@0	23	print("Returning newly loaded class.");
aoqi@0	24	return clazz;
aoqi@0	25	} catch (Exception e) {
aoqi@0	26	_recur = old;
aoqi@0	27	print("Not found on disk.");
aoqi@0	28	// If we caught an exception, either the class was not found or
aoqi@0	29	// it was unreadable by our process.
aoqi@0	30	return null;
aoqi@0	31	//throw new ClassNotFoundException(e.toString());
aoqi@0	32	}
aoqi@0	33	}
aoqi@0	34
aoqi@0	35	protected synchronized Class loadClass(String name, boolean resolve) throws ClassNotFoundException {
aoqi@0	36	// Attempt a disk load first
aoqi@0	37	Class c = findClass2(name);
aoqi@0	38	if( c == null ) {
aoqi@0	39	// check if the class has already been loaded
aoqi@0	40	print("Checking for prior loaded class "+name);
aoqi@0	41	c = findLoadedClass(name);
aoqi@0	42	print("Letting super-loader load "+name);
aoqi@0	43	int old = _recur;
aoqi@0	44	_recur++;
aoqi@0	45	c = super.loadClass(name, false);
aoqi@0	46	_recur=old;
aoqi@0	47	}
aoqi@0	48	if (resolve) { print("Resolving class "+name); resolveClass(c); }
aoqi@0	49	print("Returning clazz "+c.getClassLoader()+":"+name);
aoqi@0	50	return c;
aoqi@0	51	}
aoqi@0	52	}