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8193064: JarFile::getEntry0 method reference use cause for startup regression

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Reviewed-by: sherman, mchung
This commit is contained in:
Claes Redestad 2017-12-05 22:26:17 +01:00
parent 1a819fcd7a
commit c6aa806643
1 changed files with 9 additions and 7 deletions
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16
src/java.base/share/classes/java/util/jar/JarFile.java
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@ -43,17 +43,12 @@ import java.security.CodeSource;
import java.security.cert.Certificate;
import java.util.ArrayList;
import java.util.Enumeration;
import java.util.Iterator;
import java.util.List;
import java.util.Locale;
import java.util.Map;
import java.util.NoSuchElementException;
import java.util.Objects;
import java.util.Spliterator;
import java.util.Spliterators;
import java.util.stream.Collector;
import java.util.function.Function;
import java.util.stream.Stream;
import java.util.stream.StreamSupport;
import java.util.zip.ZipEntry;
import java.util.zip.ZipException;
import java.util.zip.ZipFile;
@ -566,7 +561,14 @@ class JarFile extends ZipFile {
* given entry name or {@code null} if not found.
*/
private JarFileEntry getEntry0(String name) {
return (JarFileEntry)JUZFA.getEntry(this, name, JarFileEntry::new);
// Not using a lambda/method reference here to optimize startup time
Function<String, JarEntry> newJarFileEntryFn = new Function<>() {
@Override
public JarEntry apply(String name) {
return new JarFileEntry(name);
}
};
return (JarFileEntry)JUZFA.getEntry(this, name, newJarFileEntryFn);
}
private String getBasename(String name) {