Fail to load org.apache.solr.schema.PreAnalyzedField$PreAnalyzedAnalyzer for fieldType "preanalyzed"

[tjlp]

 Hi,

I use Solr 6.0 on Windows. And try the example techproducts. At first I run 
bin\solr -e techproducts -s "example\techproducts" and it works fine. But when 
I add several fields, and try to restart it, I get some failures. From the log, 
it should be fail to load the PreAnalyzedAnalyzer for fieldType "preanalyzed". 
The call stack is as follow:

INFO  - 2016-06-24 02:02:29.866; [   ] org.apache.solr.schema.IndexSchema; 
[techproducts] Schema name=example
ERROR - 2016-06-24 02:02:30.122; [   ] 
org.apache.solr.schema.FieldTypePluginLoader; Cannot load analyzer: 
org.apache.solr.schema.PreAnalyzedField$PreAnalyzedAnalyzer
java.lang.InstantiationException: 
org.apache.solr.schema.PreAnalyzedField$PreAnalyzedAnalyzer
    at java.lang.Class.newInstance(Class.java:427)
    at 
org.apache.solr.schema.FieldTypePluginLoader.readAnalyzer(FieldTypePluginLoader.java:271)
    at 
org.apache.solr.schema.FieldTypePluginLoader.create(FieldTypePluginLoader.java:104)
    at 
org.apache.solr.schema.FieldTypePluginLoader.create(FieldTypePluginLoader.java:53)
    at 
org.apache.solr.util.plugin.AbstractPluginLoader.load(AbstractPluginLoader.java:152)
    at org.apache.solr.schema.IndexSchema.readSchema(IndexSchema.java:474)
    at org.apache.solr.schema.IndexSchema.<init>(IndexSchema.java:163)
    at 
org.apache.solr.schema.ManagedIndexSchema.<init>(ManagedIndexSchema.java:104)
    at 
org.apache.solr.schema.ManagedIndexSchemaFactory.create(ManagedIndexSchemaFactory.java:172)
    at 
org.apache.solr.schema.ManagedIndexSchemaFactory.create(ManagedIndexSchemaFactory.java:45)
    at 
org.apache.solr.schema.IndexSchemaFactory.buildIndexSchema(IndexSchemaFactory.java:75)
    at 
org.apache.solr.core.ConfigSetService.createIndexSchema(ConfigSetService.java:108)
    at org.apache.solr.core.ConfigSetService.getConfig(ConfigSetService.java:79)
    at org.apache.solr.core.CoreContainer.create(CoreContainer.java:815)
    at org.apache.solr.core.CoreContainer.access$000(CoreContainer.java:88)
    at org.apache.solr.core.CoreContainer$1.call(CoreContainer.java:468)
    at org.apache.solr.core.CoreContainer$1.call(CoreContainer.java:459)
    at java.util.concurrent.FutureTask.run(FutureTask.java:266)
    at 
org.apache.solr.common.util.ExecutorUtil$MDCAwareThreadPoolExecutor.lambda$execute$0(ExecutorUtil.java:229)
    at 
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
    at 
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
    at java.lang.Thread.run(Thread.java:745)
Caused by: java.lang.NoSuchMethodException: 
org.apache.solr.schema.PreAnalyzedField$PreAnalyzedAnalyzer.<init>()
    at java.lang.Class.getConstructor0(Class.java:3082)
    at java.lang.Class.newInstance(Class.java:412)
    ... 21 more
ERROR - 2016-06-24 02:02:30.128; [   ] org.apache.solr.core.CoreContainer; 
Error creating core [techproducts]: Could not load conf for core techproducts: 
Can't load schema 
C:\WORK\Solr\Solr6.0\solr-6.0.0\example\techproducts\solr\techproducts\conf\managed-schema:
 Plugin init failure for [schema.xml] fieldType "preanalyzed": Cannot load 
analyzer: org.apache.solr.schema.PreAnalyzedField$PreAnalyzedAnalyzer.

What could be the reason? On stackoverflow, some answers mentioned that to fix 
the error like "java.lang.NoSuchMethodException: XXXX.YYY.<init>()", we could 
add a constructor without arguments. But for this issue, I don't think so.

Thanks
Liu Peng