Make unique stub names stable.

Author: jovanstevanovic

substratevm/src/com.oracle.svm.core/src/com/oracle/svm/core/SubstrateUtil.java

@@ -322,11 +322,22 @@ public static String uniqueShortName(Member m) {
      * @return a unique stub name for the method
      */
     public static String uniqueStubName(ResolvedJavaMethod m) {
-        String shortName = UniqueShortNameProvider.singleton().uniqueShortName(null, m.getDeclaringClass(), m.getName(), m.getSignature(), m.isConstructor());
-        return stripPackage(m.getDeclaringClass().toJavaName()) + "_" +
-                        (m.isConstructor() ? "constructor" : m.getName()) + "_" +
-                        SubstrateUtil.digest(shortName);
+        return uniqueShortName("", m.getDeclaringClass(), m.getName(), m.getSignature(), m.isConstructor());
+    }
+
+    public static String uniqueShortName(String loaderNameAndId, ResolvedJavaType declaringClass, String methodName, Signature methodSignature, boolean isConstructor) {
+        StringBuilder sb = new StringBuilder(loaderNameAndId);
+        sb.append(declaringClass.toClassName()).append(".").append(methodName).append("(");
+        for (int i = 0; i < methodSignature.getParameterCount(false); i++) {
+            sb.append(methodSignature.getParameterType(i, null).toClassName()).append(",");
+        }
+        sb.append(')');
+        if (!isConstructor) {
+            sb.append(methodSignature.getReturnType(null).toClassName());
+        }
 
+        return stripPackage(declaringClass.toJavaName()) + "_" +
+                        (isConstructor ? "constructor" : methodName) + "_" + digest(sb.toString());
     }
 
     /**

substratevm/src/com.oracle.svm.core/src/com/oracle/svm/core/UniqueShortNameProviderDefaultImpl.java

@@ -45,20 +45,7 @@
 public class UniqueShortNameProviderDefaultImpl implements UniqueShortNameProvider {
     @Override
     public String uniqueShortName(ClassLoader loader, ResolvedJavaType declaringClass, String methodName, Signature methodSignature, boolean isConstructor) {
-        String loaderName = SubstrateUtil.classLoaderNameAndId(loader);
-        StringBuilder sb = new StringBuilder(loaderName);
-        sb.append(declaringClass.toClassName()).append(".").append(methodName).append("(");
-        for (int i = 0; i < methodSignature.getParameterCount(false); i++) {
-            sb.append(methodSignature.getParameterType(i, null).toClassName()).append(",");
-        }
-        sb.append(')');
-        if (!isConstructor) {
-            sb.append(methodSignature.getReturnType(null).toClassName());
-        }
-
-        return SubstrateUtil.stripPackage(declaringClass.toJavaName()) + "_" +
-                        (isConstructor ? "constructor" : methodName) + "_" +
-                        SubstrateUtil.digest(sb.toString());
+        return SubstrateUtil.uniqueShortName(SubstrateUtil.classLoaderNameAndId(loader), declaringClass, methodName, methodSignature, isConstructor);
     }
 
     @Override