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use backported V8 CHM only for Oracle or Apple JDK (IDEA-116404 Java code compilation does not work with IBM JDK)

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This commit is contained in:
Eugene Zhuravlev
2013-11-27 15:04:53 +01:00
parent 96e001e5bc
commit eec2e4a88d
1 changed files with 23 additions and 1 deletions
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platform/util/src/com/intellij/util/containers/ConcurrentFactoryMap.java
+23 -1
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@@ -15,14 +15,36 @@
*/
package com.intellij.util.containers;
import com.intellij.openapi.util.SystemInfo;
import java.util.Map;
/**
* @author peter
*/
public abstract class ConcurrentFactoryMap<T,V> extends FactoryMap<T,V> {
private interface MapFactory {
int DEFAULT_CONCURRENCY_LEVEL = Runtime.getRuntime().availableProcessors();
MapFactory V8_MAP_FACTORY = new MapFactory() {
public <T, V> Map<T, V> createMap() {
return new ConcurrentHashMap<T,V>();
}
};
MapFactory DEFAULT_MAP_FACTORY = new MapFactory() {
public <T, V> Map<T, V> createMap() {
return new java.util.concurrent.ConcurrentHashMap<T,V>(16, 0.75f, DEFAULT_CONCURRENCY_LEVEL);
}
};
<T, V> Map<T, V> createMap();
}
private static final MapFactory ourMapFactory = SystemInfo.isOracleJvm || SystemInfo.isAppleJvm? MapFactory.V8_MAP_FACTORY : MapFactory.DEFAULT_MAP_FACTORY;
@Override
protected Map<T, V> createMap() {
return new ConcurrentHashMap<T,V>();
return ourMapFactory.createMap();
}
}