From 2ab7aa9a3e70ab6a4018a147492f0ac03f781ba7 Mon Sep 17 00:00:00 2001
From: Tom Rodriguez <tom.rodriguez@oracle.com>
Date: Thu, 15 Oct 2020 23:14:40 -0700
Subject: [PATCH] 8255068: [JVMCI] errors during compiler creation can be
 hidden

---
 .../vm/ci/hotspot/HotSpotJVMCIRuntime.java    | 26 +++++++++++++++++--
 1 file changed, 24 insertions(+), 2 deletions(-)

diff --git a/src/jdk.internal.vm.ci/share/classes/jdk.vm.ci.hotspot/src/jdk/vm/ci/hotspot/HotSpotJVMCIRuntime.java b/src/jdk.internal.vm.ci/share/classes/jdk.vm.ci.hotspot/src/jdk/vm/ci/hotspot/HotSpotJVMCIRuntime.java
index ed7df16761718..6915035af8376 100644
--- a/src/jdk.internal.vm.ci/share/classes/jdk.vm.ci.hotspot/src/jdk/vm/ci/hotspot/HotSpotJVMCIRuntime.java
+++ b/src/jdk.internal.vm.ci/share/classes/jdk.vm.ci.hotspot/src/jdk/vm/ci/hotspot/HotSpotJVMCIRuntime.java
@@ -46,6 +46,7 @@
 import java.util.function.Predicate;
 
 import jdk.vm.ci.code.Architecture;
+import jdk.vm.ci.code.CompilationRequest;
 import jdk.vm.ci.code.CompilationRequestResult;
 import jdk.vm.ci.code.CompiledCode;
 import jdk.vm.ci.code.InstalledCode;
@@ -698,6 +699,19 @@ public Class<?> getMirror(ResolvedJavaType type) {
         return null;
     }
 
+    static class ErrorCreatingCompiler implements JVMCICompiler {
+        private final RuntimeException t;
+
+        ErrorCreatingCompiler(RuntimeException t) {
+            this.t = t;
+        }
+
+        @Override
+        public CompilationRequestResult compileMethod(CompilationRequest request) {
+            throw t;
+        }
+    }
+
     @Override
     public JVMCICompiler getCompiler() {
         if (compiler == null) {
@@ -705,11 +719,19 @@ public JVMCICompiler getCompiler() {
                 if (compiler == null) {
                     assert !creatingCompiler : "recursive compiler creation";
                     creatingCompiler = true;
-                    compiler = compilerFactory.createCompiler(this);
-                    creatingCompiler = false;
+                    try {
+                        compiler = compilerFactory.createCompiler(this);
+                    } catch (RuntimeException t) {
+                        compiler = new ErrorCreatingCompiler(t);
+                    } finally {
+                        creatingCompiler = false;
+                    }
                 }
             }
         }
+        if (compiler instanceof ErrorCreatingCompiler) {
+            throw ((ErrorCreatingCompiler) compiler).t;
+        }
         return compiler;
     }