Bsh/GroovyScriptFactory reset script cache in case of compilation error

Issue: SPR-14007

spring-context/src/main/java/org/springframework/scripting/bsh/BshScriptFactory.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2013 the original author or authors.
+ * Copyright 2002-2016 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -119,9 +119,9 @@ public class BshScriptFactory implements ScriptFactory, BeanClassLoaderAware {
 	public Object getScriptedObject(ScriptSource scriptSource, Class<?>... actualInterfaces)
 			throws IOException, ScriptCompilationException {
 
-		try {
 		Class<?> clazz;
 
+		try {
 			synchronized (this.scriptClassMonitor) {
 				boolean requiresScriptEvaluation = (this.wasModifiedForTypeCheck && this.scriptClass == null);
 				this.wasModifiedForTypeCheck = false;
@@ -145,6 +145,11 @@ public class BshScriptFactory implements ScriptFactory, BeanClassLoaderAware {
 				}
 				clazz = this.scriptClass;
 			}
+		}
+		catch (EvalError ex) {
+			this.scriptClass = null;
+			throw new ScriptCompilationException(scriptSource, ex);
+		}
 
 		if (clazz != null) {
 			// A Class: We need to create an instance for every call.
@@ -158,21 +163,22 @@ public class BshScriptFactory implements ScriptFactory, BeanClassLoaderAware {
 		}
 		else {
 			// Not a Class: We need to evaluate the script for every call.
+			try {
 				return BshScriptUtils.createBshObject(
 						scriptSource.getScriptAsString(), actualInterfaces, this.beanClassLoader);
 			}
-		}
 			catch (EvalError ex) {
 				throw new ScriptCompilationException(scriptSource, ex);
 			}
 		}
+	}
 
 	@Override
 	public Class<?> getScriptedObjectType(ScriptSource scriptSource)
 			throws IOException, ScriptCompilationException {
 
-		try {
 		synchronized (this.scriptClassMonitor) {
+			try {
 				if (scriptSource.isModified()) {
 					// New script content: Let's check whether it evaluates to a Class.
 					this.wasModifiedForTypeCheck = true;
@@ -181,11 +187,12 @@ public class BshScriptFactory implements ScriptFactory, BeanClassLoaderAware {
 				}
 				return this.scriptClass;
 			}
-		}
 			catch (EvalError ex) {
+				this.scriptClass = null;
 				throw new ScriptCompilationException(scriptSource, ex);
 			}
 		}
+	}
 
 	@Override
 	public boolean requiresScriptedObjectRefresh(ScriptSource scriptSource) {

spring-context/src/main/java/org/springframework/scripting/groovy/GroovyScriptFactory.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2015 the original author or authors.
+ * Copyright 2002-2016 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -158,10 +158,9 @@ public class GroovyScriptFactory implements ScriptFactory, BeanFactoryAware, Bea
 	public Object getScriptedObject(ScriptSource scriptSource, Class<?>... actualInterfaces)
 			throws IOException, ScriptCompilationException {
 
+		synchronized (this.scriptClassMonitor) {
 			try {
 				Class<?> scriptClassToExecute;
-
-			synchronized (this.scriptClassMonitor) {
 				this.wasModifiedForTypeCheck = false;
 
 				if (this.cachedResult != null) {
@@ -186,22 +185,24 @@ public class GroovyScriptFactory implements ScriptFactory, BeanFactoryAware, Bea
 					}
 				}
 				scriptClassToExecute = this.scriptClass;
-			}
 
 				// Process re-execution outside of the synchronized block.
 				return executeScript(scriptSource, scriptClassToExecute);
 			}
 			catch (CompilationFailedException ex) {
+				this.scriptClass = null;
+				this.scriptResultClass = null;
 				throw new ScriptCompilationException(scriptSource, ex);
 			}
 		}
+	}
 
 	@Override
 	public Class<?> getScriptedObjectType(ScriptSource scriptSource)
 			throws IOException, ScriptCompilationException {
 
-		try {
 		synchronized (this.scriptClassMonitor) {
+			try {
 				if (this.scriptClass == null || scriptSource.isModified()) {
 					// New script content...
 					this.wasModifiedForTypeCheck = true;
@@ -220,11 +221,14 @@ public class GroovyScriptFactory implements ScriptFactory, BeanFactoryAware, Bea
 				}
 				return this.scriptResultClass;
 			}
-		}
 			catch (CompilationFailedException ex) {
+				this.scriptClass = null;
+				this.scriptResultClass = null;
+				this.cachedResult = null;
 				throw new ScriptCompilationException(scriptSource, ex);
 			}
 		}
+	}
 
 	@Override
 	public boolean requiresScriptedObjectRefresh(ScriptSource scriptSource) {