2017-12-03 08:34:42,679 ERROR o.j.r.PluginManager: Failed to download commons-pool
java.lang.IllegalStateException: Invalid use of BasicClientConnManager: connection still allocated.
Make sure to release the connection before allocating another one.
at org.apache.http.util.Asserts.check(Asserts.java:34) ~[httpcore-4.4.7.jar:4.4.7]
at org.apache.http.impl.conn.BasicClientConnectionManager.getConnection(BasicClientConnectionManager.java:163) ~[httpclient-4.5.3.jar:4.5.3]
at org.apache.http.impl.conn.BasicClientConnectionManager$1.getConnection(BasicClientConnectionManager.java:145) ~[httpclient-4.5.3.jar:4.5.3]
at org.apache.http.impl.client.DefaultRequestDirector.execute(DefaultRequestDirector.java:422) ~[httpclient-4.5.3.jar:4.5.3]
at org.apache.http.impl.client.AbstractHttpClient.doExecute(AbstractHttpClient.java:835) ~[httpclient-4.5.3.jar:4.5.3]
at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:83) ~[httpclient-4.5.3.jar:4.5.3]
at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:56) ~[httpclient-4.5.3.jar:4.5.3]
at org.jmeterplugins.repository.JARSourceHTTP.execute(JARSourceHTTP.java:376) ~[jmeter-plugins-manager-0.16.jar:?]
at org.jmeterplugins.repository.JARSourceHTTP.getJAR(JARSourceHTTP.java:284) ~[jmeter-plugins-manager-0.16.jar:?]
at org.jmeterplugins.repository.PluginManager.applyChanges(PluginManager.java:163) [jmeter-plugins-manager-0.16.jar:?]
at org.jmeterplugins.repository.plugins.SuggestDialog$1$1.run(SuggestDialog.java:77) [jmeter-plugins-manager-0.16.jar:?]
2017-12-03 08:34:42,679 ERROR o.a.j.JMeter: Uncaught exception:
org.jmeterplugins.repository.exception.DownloadException: Failed to download library commons-pool
at org.jmeterplugins.repository.PluginManager.applyChanges(PluginManager.java:169) ~[jmeter-plugins-manager-0.16.jar:?]
at org.jmeterplugins.repository.plugins.SuggestDialog$1$1.run(SuggestDialog.java:77) ~[jmeter-plugins-manager-0.16.jar:?]
Caused by: java.lang.IllegalStateException: Invalid use of BasicClientConnManager: connection still allocated.
Make sure to release the connection before allocating another one.
at org.apache.http.util.Asserts.check(Asserts.java:34) ~[httpcore-4.4.7.jar:4.4.7]
at org.apache.http.impl.conn.BasicClientConnectionManager.getConnection(BasicClientConnectionManager.java:163) ~[httpclient-4.5.3.jar:4.5.3]
at org.apache.http.impl.conn.BasicClientConnectionManager$1.getConnection(BasicClientConnectionManager.java:145) ~[httpclient-4.5.3.jar:4.5.3]
at org.apache.http.impl.client.DefaultRequestDirector.execute(DefaultRequestDirector.java:422) ~[httpclient-4.5.3.jar:4.5.3]
at org.apache.http.impl.client.AbstractHttpClient.doExecute(AbstractHttpClient.java:835) ~[httpclient-4.5.3.jar:4.5.3]
at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:83) ~[httpclient-4.5.3.jar:4.5.3]
at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:56) ~[httpclient-4.5.3.jar:4.5.3]
at org.jmeterplugins.repository.JARSourceHTTP.execute(JARSourceHTTP.java:376) ~[jmeter-plugins-manager-0.16.jar:?]
at org.jmeterplugins.repository.JARSourceHTTP.getJAR(JARSourceHTTP.java:284) ~[jmeter-plugins-manager-0.16.jar:?]
at org.jmeterplugins.repository.PluginManager.applyChanges(PluginManager.java:163) ~[jmeter-plugins-manager-0.16.jar:?]
... 1 more