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fix for copy field problem in issue 98

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This commit is contained in:
Andy Clement
2015-03-12 21:09:04 -07:00
parent 489e1fe29b
commit c89a0d0a23
1 changed files with 14 additions and 0 deletions
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14
springloaded/src/main/java/org/springsource/loaded/jvm/JVM.java
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@@ -55,6 +55,7 @@ public class JVM {
}
}
private static Field jlrFieldRootField;
private static Method jlrFieldCopy;
static {
try {
@@ -63,6 +64,12 @@ public class JVM {
} catch (Exception e) {
log.log(Level.SEVERE, "Problems getting 'Field.copy()' method. Incompatible JVM?", e);
}
try {
jlrFieldRootField = Field.class.getDeclaredField("root");
jlrFieldRootField.setAccessible(true);
} catch (Exception e) {
// Possibly on a JDK level that didn't have this?
}
}
private static Method jlrConstructorGetRoot;
@@ -162,6 +169,13 @@ public class JVM {
public static Field copyField(Field field) {
try {
if (jlrFieldRootField != null) {
jlrFieldRootField.setAccessible(true);
Field possibleRoot = (Field)jlrFieldRootField.get(field);
if (possibleRoot != null) {
field = possibleRoot;
}
}
return (Field) jlrFieldCopy.invoke(field);
} catch (Exception e) {
log.log(Level.SEVERE, "Problems copying field. Incompatible JVM?", e);