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java.lang.NullPointerException: null	at chemaxon.jchem.webservice2.model.jchem.JChemDBUtils.listStructureTables(JChemDBUtils.java:668)	at chemaxon.jchem.webservice2.model.jchem.CachingJChemDBUtils.access$301(CachingJChemDBUtils.java:44)	at chemaxon.jchem.webservice2.model.jchem.CachingJChemDBUtils$4.call(CachingJChemDBUtils.java:139)	at chemaxon.jchem.webservice2.model.jchem.CachingJChemDBUtils$4.call(CachingJChemDBUtils.java:136)	at com.google.common.cache.LocalCache$LocalManualCache$1.load(LocalCache.java:4796)	at com.google.common.cache.LocalCache$LoadingValueReference.loadFuture(LocalCache.java:3589)	at com.google.common.cache.LocalCache$Segment.loadSync(LocalCache.java:2374)	at com.google.common.cache.LocalCache$Segment.lockedGetOrLoad(LocalCache.java:2337)	at com.google.common.cache.LocalCache$Segment.get(LocalCache.java:2252)	at com.google.common.cache.LocalCache.get(LocalCache.java:3990)	at com.google.common.cache.LocalCache$LocalManualCache.get(LocalCache.java:4793)	at chemaxon.jchem.webservice2.model.jchem.CachingJChemDBUtils.listStructureTables(CachingJChemDBUtils.java:136)	at chemaxon.jchem.webservice2.model.jchem.JChemDBUtils.getStructureTableMap(JChemDBUtils.java:145)	at chemaxon.jchem.webservice2.model.jchem.JChemDBUtils.getStructureTable(JChemDBUtils.java:155)	at chemaxon.jchem.webservice2.model.jchem.JChemContextAware.getStructureTable(JChemContextAware.java:47)	at chemaxon.jchem.webservice2.model.jchem.JChemTable.getTableInfo(JChemTable.java:795)	at chemaxon.jchem.webservice2.model.CachingChTable.getTableInfo(CachingChTable.java:245)	at chemaxon.jchem.webservice2.restservices.v0.AbstractTableService.tableInfo(AbstractTableService.java:70)	at chemaxon.jchem.webservice2.restservices.v0.AbstractTableService$$FastClassByCGLIB$$bc57d480.invoke()	at org.springframework.cglib.proxy.MethodProxy.invoke(MethodProxy.java:204)	at org.springframework.aop.framework.CglibAopProxy$CglibMethodInvocation.invokeJoinpoint(CglibAopProxy.java:698)	at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:150)	at org.springframework.aop.interceptor.ExposeInvocationInterceptor.invoke(ExposeInvocationInterceptor.java:91)	at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)	at org.springframework.aop.framework.CglibAopProxy$DynamicAdvisedInterceptor.intercept(CglibAopProxy.java:631)	at chemaxon.jchem.webservice2.restservices.v0.TableServiceImpl$$EnhancerByCGLIB$$56eb4902.tableInfo()	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)	at java.lang.reflect.Method.invoke(Method.java:606)	at com.sun.jersey.spi.container.JavaMethodInvokerFactory$1.invoke(JavaMethodInvokerFactory.java:60)	at com.sun.jersey.server.impl.model.method.dispatch.AbstractResourceMethodDispatchProvider$TypeOutInvoker._dispatch(AbstractResourceMethodDispatchProvider.java:185)	at com.sun.jersey.server.impl.model.method.dispatch.ResourceJavaMethodDispatcher.dispatch(ResourceJavaMethodDispatcher.java:75)	at com.sun.jersey.server.impl.uri.rules.HttpMethodRule.accept(HttpMethodRule.java:302)	at com.sun.jersey.server.impl.uri.rules.ResourceClassRule.accept(ResourceClassRule.java:108)	at com.sun.jersey.server.impl.uri.rules.RightHandPathRule.accept(RightHandPathRule.java:147)	at com.sun.jersey.server.impl.uri.rules.RootResourceClassesRule.accept(RootResourceClassesRule.java:84)	at com.sun.jersey.server.impl.application.WebApplicationImpl._handleRequest(WebApplicationImpl.java:1511)	at com.sun.jersey.server.impl.application.WebApplicationImpl._handleRequest(WebApplicationImpl.java:1442)	at com.sun.jersey.server.impl.application.WebApplicationImpl.handleRequest(WebApplicationImpl.java:1391)	at com.sun.jersey.server.impl.application.WebApplicationImpl.handleRequest(WebApplicationImpl.java:1381)	at com.sun.jersey.spi.container.servlet.WebComponent.service(WebComponent.java:416)	at com.sun.jersey.spi.container.servlet.ServletContainer.service(ServletContainer.java:538)	at com.sun.jersey.spi.container.servlet.ServletContainer.service(ServletContainer.java:716)	at javax.servlet.http.HttpServlet.service(HttpServlet.java:727)	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:303)	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)	at chemaxon.jchem.webservice2.util.license.LicensingFilter.doFilter(LicensingFilter.java:43)	at org.springframework.web.filter.DelegatingFilterProxy.invokeDelegate(DelegatingFilterProxy.java:346)	at org.springframework.web.filter.DelegatingFilterProxy.doFilter(DelegatingFilterProxy.java:259)	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241)	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)	at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241)	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)	at org.springframework.security.web.FilterChainProxy.doFilterInternal(FilterChainProxy.java:186)	at org.springframework.security.web.FilterChainProxy.doFilter(FilterChainProxy.java:160)	at org.springframework.web.filter.DelegatingFilterProxy.invokeDelegate(DelegatingFilterProxy.java:346)	at org.springframework.web.filter.DelegatingFilterProxy.doFilter(DelegatingFilterProxy.java:259)	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241)	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)	at chemaxon.jchem.webservice2.util.ResponseCachingFilter.doFilter(ResponseCachingFilter.java:25)	at org.springframework.web.filter.DelegatingFilterProxy.invokeDelegate(DelegatingFilterProxy.java:346)	at org.springframework.web.filter.DelegatingFilterProxy.doFilter(DelegatingFilterProxy.java:259)	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241)	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)	at org.eclipse.jetty.servlets.UserAgentFilter.doFilter(UserAgentFilter.java:82)	at org.eclipse.jetty.servlets.GzipFilter.doFilter(GzipFilter.java:243)	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241)	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)	at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:220)	at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:122)	at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:501)	at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:170)	at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:98)	at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:950)	at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:116)	at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:408)	at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1040)	at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:607)	at org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:313)	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)	at java.lang.Thread.run(Thread.java:744)