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8055954: Do not parallelize class installation

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Reviewed-by: jlaskey, sundar
This commit is contained in:
Attila Szegedi 2014-08-26 15:04:20 +02:00
parent 4bca3ec0bf
commit 5eb6a95a44
1 changed files with 15 additions and 28 deletions
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43
nashorn/src/jdk.scripting.nashorn/share/classes/jdk/nashorn/internal/runtime/Context.java
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@ -163,39 +163,26 @@ public final class Context {
@Override
public void initialize(final Collection<Class<?>> classes, final Source source, final Object[] constants) {
// do these in parallel, this significantly reduces class installation overhead
// however - it still means that every thread needs a separate doPrivileged
final Global global = currentGlobal.get();
classes.parallelStream().forEach(
new Consumer<Class<?>>() {
try {
AccessController.doPrivileged(new PrivilegedExceptionAction<Void>() {
@Override
public void accept(final Class<?> clazz) {
// Global threadlocal may be needed by StructureLoader during in field lookup.
currentGlobal.set(global);
try {
AccessController.doPrivileged(new PrivilegedExceptionAction<Void>() {
@Override
public Void run() {
try {
//use reflection to write source and constants table to installed classes
final Field sourceField = clazz.getDeclaredField(SOURCE.symbolName());
sourceField.setAccessible(true);
sourceField.set(null, source);
public Void run() throws Exception {
for (final Class<?> clazz : classes) {
//use reflection to write source and constants table to installed classes
final Field sourceField = clazz.getDeclaredField(SOURCE.symbolName());
sourceField.setAccessible(true);
sourceField.set(null, source);
final Field constantsField = clazz.getDeclaredField(CONSTANTS.symbolName());
constantsField.setAccessible(true);
constantsField.set(null, constants);
} catch (final IllegalAccessException | NoSuchFieldException e) {
throw new RuntimeException(e);
}
return null;
}
});
} catch (final PrivilegedActionException e) {
throw new RuntimeException(e);
final Field constantsField = clazz.getDeclaredField(CONSTANTS.symbolName());
constantsField.setAccessible(true);
constantsField.set(null, constants);
}
return null;
}
});
} catch (final PrivilegedActionException e) {
throw new RuntimeException(e);
}
}
@Override