Addition of toString() method to document class results in it not being located

[starksm64]

I have a document class that was not being picked up during the JsonDBTemplate initialize phase. After stripping it down to determine what might be causing it, I found that just the inclusion of the public String toString()... method in the class was causing it to not be recognized as a valid collection. I have not looked into why that is.

[starksm64]

I did track it down to this problem:

org.reflections.ReflectionsException: could not create class file from SymbolInfo.class
	at org.reflections.adapters.JavassistAdapter.getOfCreateClassObject(JavassistAdapter.java:102)
	at org.reflections.adapters.JavassistAdapter.getOfCreateClassObject(JavassistAdapter.java:24)
	at org.reflections.scanners.AbstractScanner.scan(AbstractScanner.java:30)
	at org.reflections.Reflections.scan(Reflections.java:250)
	at org.reflections.Reflections.scan(Reflections.java:204)
	at org.reflections.Reflections.<init>(Reflections.java:129)
	at org.reflections.Reflections.<init>(Reflections.java:170)
	at org.reflections.Reflections.<init>(Reflections.java:143)
	at io.jsondb.CollectionMetaData.builder(CollectionMetaData.java:229)
	at io.jsondb.JsonDBTemplate.initialize(JsonDBTemplate.java:122)
	at io.jsondb.JsonDBTemplate.<init>(JsonDBTemplate.java:102)
	at io.jsondb.JsonDBTemplate.<init>(JsonDBTemplate.java:82)
	at data.jsondb.TestIO.testReadSymbolInfos(TestIO.java:41)
	at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
	at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.base/java.lang.reflect.Method.invoke(Method.java:566)
	at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:47)
	at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12)
	at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:44)
	at org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:17)
	at org.junit.runners.ParentRunner.runLeaf(ParentRunner.java:271)
	at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:70)
	at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:50)
	at org.junit.runners.ParentRunner$3.run(ParentRunner.java:238)
	at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:63)
	at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:236)
	at org.junit.runners.ParentRunner.access$000(ParentRunner.java:53)
	at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:229)
	at org.junit.runners.ParentRunner.run(ParentRunner.java:309)
	at org.junit.runner.JUnitCore.run(JUnitCore.java:160)
	at com.intellij.junit4.JUnit4IdeaTestRunner.startRunnerWithArgs(JUnit4IdeaTestRunner.java:68)
	at com.intellij.rt.junit.IdeaTestRunner$Repeater.startRunnerWithArgs(IdeaTestRunner.java:33)
	at com.intellij.rt.junit.JUnitStarter.prepareStreamsAndStart(JUnitStarter.java:230)
	at com.intellij.rt.junit.JUnitStarter.main(JUnitStarter.java:58)
Caused by: java.io.IOException: invalid constant type: 18
	at javassist.bytecode.ConstPool.readOne(ConstPool.java:1090)
	at javassist.bytecode.ConstPool.read(ConstPool.java:1033)
	at javassist.bytecode.ConstPool.<init>(ConstPool.java:149)
	at javassist.bytecode.ClassFile.read(ClassFile.java:764)
	at javassist.bytecode.ClassFile.<init>(ClassFile.java:108)
	at org.reflections.adapters.JavassistAdapter.getOfCreateClassObject(JavassistAdapter.java:100)
	... 34 more

This is due to an older version of javassist being included by a parent project. Updating javassist fixed the issue.