From 5de2e5b11bea3d8643a65d7499fca1fe15ac31f2 Mon Sep 17 00:00:00 2001
From: Dmitry Cherniachenko <d.cherniachenko@gmail.com>
Date: Fri, 21 Apr 2017 21:35:03 +0200
Subject: [PATCH] Use bootstrap classloader to only provide access to JRE
 classes

---
 .../java/decompiler/modules/decompiler/ClasspathHelper.java    | 3 ++-
 .../decompiler/modules/decompiler/exps/InvocationExprent.java  | 2 ++
 2 files changed, 4 insertions(+), 1 deletion(-)

diff --git a/src/org/jetbrains/java/decompiler/modules/decompiler/ClasspathHelper.java b/src/org/jetbrains/java/decompiler/modules/decompiler/ClasspathHelper.java
index b8ceb06..83ad121 100644
--- a/src/org/jetbrains/java/decompiler/modules/decompiler/ClasspathHelper.java
+++ b/src/org/jetbrains/java/decompiler/modules/decompiler/ClasspathHelper.java
@@ -30,7 +30,8 @@ public class ClasspathHelper {
 
   private static Method findMethodOnClasspath(String targetClass, String methodSignature) {
     try {
-      Class cls = Class.forName(targetClass);
+      // use bootstrap classloader to only provide access to JRE classes
+      Class cls = new ClassLoader(null) {}.loadClass(targetClass);
       for (Method mtd : cls.getMethods()) {
         // use contains() to ignore access modifiers and thrown exceptions
         if (mtd.toString().contains(methodSignature)) {
diff --git a/src/org/jetbrains/java/decompiler/modules/decompiler/exps/InvocationExprent.java b/src/org/jetbrains/java/decompiler/modules/decompiler/exps/InvocationExprent.java
index 5f3c197..8d53711 100644
--- a/src/org/jetbrains/java/decompiler/modules/decompiler/exps/InvocationExprent.java
+++ b/src/org/jetbrains/java/decompiler/modules/decompiler/exps/InvocationExprent.java
@@ -394,6 +394,8 @@ public class InvocationExprent extends Exprent {
       }
     }
     else {
+      // TODO: tap into IDEA indices to access libraries methods details
+
       // try to check the class on the classpath
       Method mtd = ClasspathHelper.findMethod(classname, name, descriptor);
       return mtd != null && mtd.isVarArgs();