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ICU-21507 Removing unused class initializer code

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ICUDebug seemed to check Java version whether it's 1.4 or higher. The code referencing the version is already gone. We also no longer support Java 1.3 runtime since long time ago. Remove the unused code checking Java version.
This commit is contained in:
Yoshito Umaoka 2021-03-08 02:58:20 -05:00
parent ce640dc850
commit d624e5fb4b
1 changed files with 0 additions and 70 deletions
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70
icu4j/main/classes/core/src/com/ibm/icu/impl/ICUDebug.java
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@ -8,8 +8,6 @@
*/
package com.ibm.icu.impl;
import com.ibm.icu.util.VersionInfo;
public final class ICUDebug {
private static String params;
static {
@ -28,55 +26,6 @@ public final class ICUDebug {
}
}
public static final String javaVersionString = System.getProperty("java.version", "0");
public static final boolean isJDK14OrHigher;
public static final VersionInfo javaVersion;
public static VersionInfo getInstanceLenient(String s) {
// Extracting ASCII numbers up to 4 delimited by
// any non digit characters
int[] ver = new int[4];
boolean numeric = false;
int i = 0, vidx = 0;
while (i < s.length()) {
char c = s.charAt(i++);
if (c < '0' || c > '9') {
if (numeric) {
if (vidx == 3) {
// up to 4 numbers
break;
}
numeric = false;
vidx++;
}
} else {
if (numeric) {
ver[vidx] = ver[vidx] * 10 + (c - '0');
if (ver[vidx] > 255) {
// VersionInfo does not support numbers
// greater than 255. In such case, we
// ignore the number and the rest
ver[vidx] = 0;
break;
}
} else {
numeric = true;
ver[vidx] = c - '0';
}
}
}
return VersionInfo.getInstance(ver[0], ver[1], ver[2], ver[3]);
}
static {
javaVersion = getInstanceLenient(javaVersionString);
VersionInfo java14Version = VersionInfo.getInstance("1.4.0");
isJDK14OrHigher = javaVersion.compareTo(java14Version) >= 0;
}
public static boolean enabled() {
return debug;
}
@ -109,23 +58,4 @@ public final class ICUDebug {
}
return result;
}
// static public void main(String[] args) {
// // test
// String[] tests = {
// "1.3.0",
// "1.3.0_02",
// "1.3.1ea",
// "1.4.1b43",
// "___41___5",
// "x1.4.51xx89ea.7f",
// "1.6_2009",
// "10-100-1000-10000",
// "beta",
// "0",
// };
// for (int i = 0; i < tests.length; ++i) {
// System.out.println(tests[i] + " => " + getInstanceLenient(tests[i]));
// }
// }
}