aboutsummaryrefslogtreecommitdiff
path: root/src/eclipseAgent/lombok
diff options
context:
space:
mode:
Diffstat (limited to 'src/eclipseAgent/lombok')
-rw-r--r--src/eclipseAgent/lombok/eclipse/agent/EclipseLoaderPatcherTransplants.java31
1 files changed, 30 insertions, 1 deletions
diff --git a/src/eclipseAgent/lombok/eclipse/agent/EclipseLoaderPatcherTransplants.java b/src/eclipseAgent/lombok/eclipse/agent/EclipseLoaderPatcherTransplants.java
index ea72f56a..402d6747 100644
--- a/src/eclipseAgent/lombok/eclipse/agent/EclipseLoaderPatcherTransplants.java
+++ b/src/eclipseAgent/lombok/eclipse/agent/EclipseLoaderPatcherTransplants.java
@@ -77,6 +77,35 @@ public class EclipseLoaderPatcherTransplants {
if (len == bytes.length) throw new IllegalStateException("lombok.launch.ShadowClassLoader too large.");
}
in.close();
+
+ try {
+ /* Since Java 16 reflective access to ClassLoader.defineClass is no longer permitted. The recommended solution
+ * is to use MethodHandles.lookup().defineClass which is useless here because it is limited to classes in the
+ * same package. Fortunately this code gets transplanted into a ClassLoader and we can call the parent method
+ * using a MethodHandle. To support old Java versions we use a reflective version of the code snippet below.
+ *
+ * Lookup lookup = MethodHandles.lookup();
+ * MethodType type = MethodType.methodType(Class.class, new Class[] {String.class, byte[].class, int.class, int.class});
+ * MethodHandle method = lookup.findVirtual(original.getClass(), "defineClass", type);
+ * shadowClassLoaderClass = (Class) method.invokeWithArguments(original, "lombok.launch.ShadowClassLoader", bytes, new Integer(0), new Integer(len)})
+ */
+ Class methodHandles = Class.forName("java.lang.invoke.MethodHandles");
+ Class methodHandle = Class.forName("java.lang.invoke.MethodHandle");
+ Class methodType = Class.forName("java.lang.invoke.MethodType");
+ Class methodHandlesLookup = Class.forName("java.lang.invoke.MethodHandles$Lookup");
+ Method lookupMethod = methodHandles.getDeclaredMethod("lookup", null);
+ Method methodTypeMethod = methodType.getDeclaredMethod("methodType", new Class[] {Class.class, Class[].class});
+ Method findVirtualMethod = methodHandlesLookup.getDeclaredMethod("findVirtual", new Class[] {Class.class, String.class, methodType});
+ Method invokeMethod = methodHandle.getDeclaredMethod("invokeWithArguments", new Class[] {Object[].class});
+
+ Object lookup = lookupMethod.invoke(null, null);
+ Object type = methodTypeMethod.invoke(null, new Object[] {Class.class, new Class[] {String.class, byte[].class, int.class, int.class}});
+ Object method = findVirtualMethod.invoke(lookup, new Object[] {original.getClass(), "defineClass", type});
+ shadowClassLoaderClass = (Class) invokeMethod.invoke(method, new Object[] {new Object[] {original, "lombok.launch.ShadowClassLoader", bytes, new Integer(0), new Integer(len)}});
+ } catch (ClassNotFoundException e) {
+ // Ignore, old Java
+ }
+ if (shadowClassLoaderClass == null)
{
Class[] paramTypes = new Class[4];
paramTypes[0] = "".getClass();
@@ -86,8 +115,8 @@ public class EclipseLoaderPatcherTransplants {
Method defineClassMethod = classLoaderClass.getDeclaredMethod("defineClass", paramTypes);
defineClassMethod.setAccessible(true);
shadowClassLoaderClass = (Class) defineClassMethod.invoke(original, new Object[] {"lombok.launch.ShadowClassLoader", bytes, new Integer(0), new Integer(len)});
- original.getClass().getField("lombok$shadowLoaderClass").set(null, shadowClassLoaderClass);
}
+ original.getClass().getField("lombok$shadowLoaderClass").set(null, shadowClassLoaderClass);
} finally {
if (in != null) in.close();
jf.close();