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8236075: Minor bootstrap improvements

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Reviewed-by: mchung, alanb
This commit is contained in:
Claes Redestad 2020-01-21 13:28:15 +01:00
parent 3cf8b34d54
commit c639682887
10 changed files with 208 additions and 145 deletions
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29
src/java.base/unix/classes/java/lang/ClassLoaderHelper.java
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@ -1,5 +1,5 @@
/*
* Copyright (c) 2012, 2015, Oracle and/or its affiliates. All rights reserved.
* Copyright (c) 2012, 2020, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
@ -26,16 +26,12 @@
package java.lang;
import java.io.File;
import java.util.ArrayList;
class ClassLoaderHelper {
private ClassLoaderHelper() {}
/**
* Indicates, whether PATH env variable is allowed to contain quoted entries.
*/
static final boolean allowsQuotedPathElements = false;
/**
* Returns an alternate path name for the given file
* such that if the original pathname did not exist, then the
@ -45,4 +41,25 @@ class ClassLoaderHelper {
static File mapAlternativeName(File lib) {
return null;
}
/**
* Parse a PATH env variable.
*
* Empty elements will be replaced by dot.
*/
static String[] parsePath(String ldPath) {
char ps = File.pathSeparatorChar;
ArrayList<String> paths = new ArrayList<>();
int pathStart = 0;
int pathEnd;
while ((pathEnd = ldPath.indexOf(ps, pathStart)) >= 0) {
paths.add((pathStart < pathEnd) ?
ldPath.substring(pathStart, pathEnd) : ".");
pathStart = pathEnd + 1;
}
int ldLen = ldPath.length();
paths.add((pathStart < ldLen) ?
ldPath.substring(pathStart, ldLen) : ".");
return paths.toArray(new String[paths.size()]);
}
}