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possible fix for https://github.com/spring-projects/spring-loaded/issues/98

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This commit is contained in:
Andy Clement
2015-03-05 11:03:03 -08:00
parent 10edc10dfd
commit ad81779bff
1 changed files with 28 additions and 0 deletions
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28
springloaded/src/main/java/org/springsource/loaded/jvm/JVM.java
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@@ -38,6 +38,8 @@ public class JVM {
private static Constructor<Method> jlrMethodCtor = (Constructor<Method>) Method.class.getDeclaredConstructors()[0];
private static Method jlrMethodCopy;
private static Method jlrMethodGetRoot;
static {
try {
jlrMethodCopy = Method.class.getDeclaredMethod("copy");
@@ -45,6 +47,12 @@ public class JVM {
} catch (Exception e) {
log.log(Level.SEVERE, "Problems getting 'Method.copy()' method. Incompatible JVM?", e);
}
try {
jlrMethodGetRoot = Method.class.getDeclaredMethod("getRoot");
jlrMethodGetRoot.setAccessible(true);
} catch (Exception e) {
// Possibly on a JDK level that didn't have this?
}
}
private static Method jlrFieldCopy;
@@ -57,14 +65,22 @@ public class JVM {
}
}
private static Method jlrConstructorGetRoot;
private static Method jlrConstructorCopy;
static {
try {
jlrConstructorCopy = Constructor.class.getDeclaredMethod("copy");
jlrConstructorCopy.setAccessible(true);
} catch (Exception e) {
log.log(Level.SEVERE, "Problems getting 'Constructor.copy()' method. Incompatible JVM?", e);
}
try {
jlrConstructorGetRoot = Constructor.class.getDeclaredMethod("getRoot");
jlrConstructorGetRoot.setAccessible(true);
} catch (Exception e) {
// Possibly on a JDK level that didn't have this?
}
}
private static Field jlrMethodModifiers;
@@ -131,6 +147,12 @@ public class JVM {
*/
public static Method copyMethod(Method method) {
try {
if (jlrMethodGetRoot != null) {
Method possibleRoot = (Method) jlrMethodGetRoot.invoke(method);
if (possibleRoot != null) {
method = possibleRoot;
}
}
return (Method) jlrMethodCopy.invoke(method);
} catch (Exception e) {
log.log(Level.SEVERE, "Problems copying method. Incompatible JVM?", e);
@@ -149,6 +171,12 @@ public class JVM {
public static Constructor<?> copyConstructor(Constructor<?> c) {
try {
if (jlrConstructorGetRoot != null) {
Constructor<?> possibleRoot = (Constructor<?>) jlrConstructorGetRoot.invoke(c);
if (possibleRoot != null) {
c = possibleRoot;
}
}
return (Constructor<?>) jlrConstructorCopy.invoke(c);
} catch (Exception e) {
log.log(Level.SEVERE, "Problems copying constructor. Incompatible JVM?", e);