Agent exit due to NPE

[jilen]

java.lang.RuntimeException: Reloading agent exited via exception, please raise a jira
    at org.springsource.loaded.agent.ClassPreProcessorAgentAdapter.transform(ClassPreProcessorAgentAdapter.java:104)
    at sun.instrument.TransformerManager.transform(TransformerManager.java:188)
    at sun.instrument.InstrumentationImpl.transform(InstrumentationImpl.java:424)
    at java.lang.ClassLoader.defineClass1(Native Method)
    at java.lang.ClassLoader.defineClass(ClassLoader.java:791)
    at java.lang.ClassLoader.defineClass(ClassLoader.java:634)
    at org.springsource.loaded.ChildClassLoader.defineClass(ChildClassLoader.java:37)
    at org.springsource.loaded.TypeRegistry.defineClass(TypeRegistry.java:1068)
    at org.springsource.loaded.CurrentLiveVersion.define(CurrentLiveVersion.java:122)
    at org.springsource.loaded.CurrentLiveVersion.<init>(CurrentLiveVersion.java:99)
    at org.springsource.loaded.ReloadableType.loadNewVersion(ReloadableType.java:381)
    at org.springsource.loaded.TypeRegistry.loadNewVersion(TypeRegistry.java:805)
    at org.springsource.loaded.agent.ReloadableFileChangeListener.fileChanged(ReloadableFileChangeListener.java:51)
    at org.springsource.loaded.agent.Watcher.determineChangesSince(FileSystemWatcher.java:218)
    at org.springsource.loaded.agent.Watcher.run(FileSystemWatcher.java:205)
    at java.lang.Thread.run(Thread.java:722)
Caused by: java.lang.NullPointerException
    at org.springsource.loaded.agent.JVMPlugin.accept(JVMPlugin.java:160)
    at org.springsource.loaded.agent.SpringLoadedPreProcessor.preProcess(SpringLoadedPreProcessor.java:112)
    at org.springsource.loaded.agent.ClassPreProcessorAgentAdapter.transform(ClassPreProcessorAgentAdapter.java:102)
    ... 15 more
java.lang.RuntimeException: Reloading agent exited via exception, please raise a jira
    at org.springsource.loaded.agent.ClassPreProcessorAgentAdapter.transform(ClassPreProcessorAgentAdapter.java:104)
    at sun.instrument.TransformerManager.transform(TransformerManager.java:188)
    at sun.instrument.InstrumentationImpl.transform(InstrumentationImpl.java:424)
    at java.lang.ClassLoader.defineClass1(Native Method)
    at java.lang.ClassLoader.defineClass(ClassLoader.java:791)
    at java.lang.ClassLoader.defineClass(ClassLoader.java:634)
    at org.springsource.loaded.ChildClassLoader.defineClass(ChildClassLoader.java:37)
    at org.springsource.loaded.TypeRegistry.defineClass(TypeRegistry.java:1068)
    at org.springsource.loaded.CurrentLiveVersion.define(CurrentLiveVersion.java:122)
    at org.springsource.loaded.CurrentLiveVersion.<init>(CurrentLiveVersion.java:99)
    at org.springsource.loaded.ReloadableType.loadNewVersion(ReloadableType.java:381)
    at org.springsource.loaded.TypeRegistry.loadNewVersion(TypeRegistry.java:805)
    at org.springsource.loaded.agent.ReloadableFileChangeListener.fileChanged(ReloadableFileChangeListener.java:51)
    at org.springsource.loaded.agent.Watcher.determineChangesSince(FileSystemWatcher.java:218)
    at org.springsource.loaded.agent.Watcher.run(FileSystemWatcher.java:205)
    at java.lang.Thread.run(Thread.java:722)
Caused by: java.lang.NullPointerException
    at org.springsource.loaded.agent.JVMPlugin.accept(JVMPlugin.java:160)
    at org.springsource.loaded.agent.SpringLoadedPreProcessor.preProcess(SpringLoadedPreProcessor.java:112)
    at org.springsource.loaded.agent.ClassPreProcessorAgentAdapter.transform(ClassPreProcessorAgentAdapter.java:102)
    ... 15 more

[aclement]

I think this is due to using an old version of spring loaded. Line 160 was originally:

if (slashedTypeName.equals("java/beans/Introspector")) {

but more recently changed to:

if (slashedTypeName!=null) {

use a later dev build and you should be OK. Latest 1.1.4 dev is here:
http://dist.springframework.org/snapshot/SPRING-LOADED/springloaded-1.1.4.20130820.jar