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Console: Add warning for OpenJDK Zero VM

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zzz
2019-01-01 15:01:22 +00:00
parent f221e724b9
commit 3c0ba5ce9c
2 changed files with 19 additions and 3 deletions
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14
core/java/src/net/i2p/util/SystemVersion.java
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@@ -33,6 +33,8 @@ public abstract class SystemVersion {
System.getProperty("os.arch").equals("amd64");
private static final boolean _isGentoo = System.getProperty("os.version").contains("gentoo") ||
System.getProperty("os.version").contains("hardened"); // Funtoo
// Could also check for java.vm.info = "interpreted mode"
private static final boolean _isZero = System.getProperty("java.vm.name").contains("Zero");
private static final boolean _isAndroid;
private static final boolean _isApache;
private static final boolean _isGNU;
@@ -73,7 +75,7 @@ public abstract class SystemVersion {
_isLinuxService = !_isWin && !_isMac && !_isAndroid &&
(DAEMON_USER.equals(System.getProperty("user.name")) ||
(_isGentoo && GENTOO_USER.equals(System.getProperty("user.name"))));
_isSlow = _isAndroid || _isApache || _isArm || _isGNU || getMaxMemory() < 48*1024*1024L;
_isSlow = _isAndroid || _isApache || _isArm || _isGNU || _isZero || getMaxMemory() < 48*1024*1024L;
int sdk = 0;
if (_isAndroid) {
@@ -163,6 +165,14 @@ public abstract class SystemVersion {
return _isX86;
}
/**
* Is this a very slow interpreted mode VM?
* @since 0.9.38
*/
public static boolean isZeroVM() {
return _isZero;
}
/**
* Our best guess on whether this is a slow architecture / OS / JVM,
* using some simple heuristics.
@@ -347,6 +357,6 @@ public abstract class SystemVersion {
System.out.println("Windows : " + isWindows());
System.out.println("Wrapper : " + hasWrapper());
System.out.println("x86 : " + isX86());
System.out.println("Zero JVM : " + isZeroVM());
}
}